Difference between revisions of "Sysadmin"

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= Machines and Brief Descriptions of Services =
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This is the hub for the CS sysadmins on the wiki.
  
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<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big><big><big>CS Machines</big></big></big></div>
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= Overview =
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{| style="float:left; margin-right:2px;"
 
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| style="height:40px; width:150px; text-align:center; background-color:#ADDFFF; border-left:solid 5px #ADDFFF; border-top:solid 5px #ADDFFF; border-bottom:solid 1px white; border-right:solid 5px      #ADDFFF; font-size:120%;" | HOME <br> (vm0)
 
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|-
 
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| style="height:135px; width:150px; background-color:#ADDFFF; border-left:solid 5px #ADDFFF; border-bottom:solid 5px #ADDFFF; border-right:solid 5px #ADDFFF;" | Users <br> SSH <br> NFS
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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[https://docs.google.com/drawings/d/1XaULz5IxXV_BZQjrko3QJ8wV5aXsSTYcSWxxT49OyZk/edit If you're visually inclined, we have a colorful and easy-to-edit map of our servers here!]
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| style="height:40px; width:150px; text-align:center; background-color:#54C571; border-left:solid 5px #54C571; border-top:solid 5px #54C571; border-bottom:solid 1px white; border-right:solid 5px #54C571; font-size:120%;" | NET <br> (vm1)
 
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|-
 
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| style="height:135px; width:150px; background-color:#54C571; border-left:solid 5px #54C571; border-bottom:solid 5px #54C571; border-right:solid 5px #54C571;" | LDAP server <br> DNS <br> DHCP
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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== Server room ==
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| style="height:40px; width:150px; text-align:center; background-color:#E77471; border-left:solid 5px #E77471; border-top:solid 5px #E77471; border-bottom:solid 1px white; border-right:solid 5px #E77471; font-size:120%;" | WEB <br> (vm2)
 
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|-
 
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| style="height:135px; width:150px; background-color:#E77471; border-left:solid 5px #E77471; border-bottom:solid 5px #E77471; border-right:solid 5px #E77471;" | Mailman <br> Mail Stack <br> Apache2 <br> PostgresQL <br> MySQL <br> Wiki
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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Our servers are in Noyes, the science building that predates the CST. For general information about the server room and how to use it, check out [[Sysadmin:Server Room|this page]].
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| style="height:40px; width:150px; text-align:center; background-color:#C38EC7; border-left:solid 5px #C38EC7; border-top:solid 5px #C38EC7; border-bottom:solid 1px white; border-right:solid 5px #C38EC7; font-size:120%;" | TOOLS <br> (vm3)
 
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|-
 
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| style="height:135px; width:150px; background-color:#C38EC7; border-left:solid 5px #C38EC7; border-bottom:solid 5px #C38EC7; border-right:solid 5px #C38EC7;" | [[SageNB Server | SageNB Server]] <br> [[Jupyterhub Notebook Server | Jupyterhub Server]] <br> [[Software Modules | Software Modules]] <br> NginX
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM
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| style="height:55px; width:150px; text-align:center; background-color:#E3A869; border-left:solid 5px #E3A869; border-top:solid 5px #E3A869; border-bottom:solid 1px white; border-right:solid 5px #E3A869; font-size:120%;" | BABBAGE
 
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|-
 
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| style="height:135px; width:150px; background-color: #E3A869; border-left:solid 5px #E3A869; border-bottom:solid 5px #E3A869; border-right:solid 5px #E3A869;" | Firewall
 
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|}
 
  
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{|
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== Compute Resources ==
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| style="height:55px; width:150px; text-align:center; background-color:#EEDC82; border-left:solid 5px #EEDC82; border-top:solid 5px #EEDC82; border-bottom:solid 1px white; border-right:solid 5px #EEDC82; font-size:120%;" | PROTO
 
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|-
 
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| style="height:135px; width:150px; background-color: #EEDC82; border-left:solid 5px #EEDC82; border-bottom:solid 5px #EEDC82; border-right:solid 5px #EEDC82;" | Weather Monitoring <br> GPS/NTP <br> Energy Monitoring
 
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|}
 
−
----
 
  
−
<div class="center" style="width: auto; margin-left: auto; margin-right: auto;"><big><big><big>Cluster Machines</big></big></big></div>
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[https://wiki.cs.earlham.edu/index.php/Sysadmin:Computer_Resources Machines and VMs related information here!]
  
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{| style="float:left; margin-right:2px;"
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== Network ==
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| style="height:55px; width:150px; text-align:center; background-color:#0099cc; border-left:solid 5px #0099cc; border-top:solid 5px #0099cc; border-bottom:solid 1px white; border-right:solid 5px      #0099cc; font-size:120%;" | HOPPER
 
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|-
 
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| style="height:200px; width:150px; background-color:#0099cc; border-left:solid 5px #0099cc; border-bottom:solid 5px #0099cc; border-right:solid 5px #0099cc;" | Users <br> SSH <br> NFS <br> [[Software Modules | Software Modules]] <br> PostgresQL <br> Wiki <br> Apache2 <br> DNS <br> DHCP
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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We have two network fabrics linking the machines together. There are three subdomains.
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| style="height:55px; width:150px; text-align:center; background-color:#ffdb4d; border-left:solid 5px #ffdb4d; border-top:solid 5px #ffdb4d; border-bottom:solid 1px white; border-right:solid 5px #ffdb4d; font-size:120%;" | DALI
 
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|-
 
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| style="height:200px; width:150px; background-color:#ffdb4d; border-left:solid 5px #ffdb4d; border-bottom:solid 5px #ffdb4d; border-right:solid 5px #ffdb4d;" | [[Gitlab]] <br> Backups <br> NginX
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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=== 10 Gb ===
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| style="height:55px; width:150px; text-align:center; background-color:#ff4d94; border-left:solid 5px #ff4d94; border-top:solid 5px #ff4d94; border-bottom:solid 1px white; border-right:solid 5px #ff4d94; font-size:120%;" | AL-SALAM
 
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|-
 
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| style="height:200px; width:150px; background-color:#ff4d94; border-left:solid 5px #ff4d94; border-bottom:solid 5px #ff4d94; border-right:solid 5px #ff4d94;" | WebMO <br> [[Software Modules | Software Modules]] <br> Apache2
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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We have 10Gb fabric to mount files over NFS. Machines with 10Gb support have an IP address in the class C range 10.10.10.0/24 and we want to add DNS to these addresses.
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| style="height:55px; width:150px; text-align:center; background-color:#39ad39; border-left:solid 5px #39ad39; border-top:solid 5px #39ad39; border-bottom:solid 1px white; border-right:solid 5px #39ad39; font-size:120%;" | LAYOUT
 
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|-
 
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| style="height:200px; width:150px; background-color:#39ad39; border-left:solid 5px #39ad39; border-bottom:solid 5px #39ad39; border-right:solid 5px #39ad39;" | Jupyterhub Server <br> [[Software Modules | Software Modules]] <br> NginX <br> Apache2 <br> WebMO
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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=== 1 Gb (cluster, cs) ===
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| style="height:55px; width:150px; text-align:center; background-color:#0099cc; border-left:solid 5px #0099cc; border-top:solid 5px #0099cc; border-bottom:solid 1px white; border-right:solid 5px #0099cc; font-size:120%;" | BRONTE
 
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|-
 
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| style="height:200px; width:150px; background-color:#0099cc; border-left:solid 5px #0099cc; border-bottom:solid 5px #0099cc; border-right:solid 5px #0099cc;" |  [[Software Modules | Software Modules]]
 
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|}
 
  
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{| style="float:left; margin-right:2px;"
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We have two class C subnets on the 1Gb fabric: 159.28.22.0/24 (CS) and 159.28.23.0/24 (cluster). This means we have double the IP addresses on the 1Gb fabric that we have on the 10Gb fabric.
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| style="height:55px; width:150px; text-align:center; background-color:#0099cc; border-left:solid 5px #0099cc; border-top:solid 5px #0099cc; border-bottom:solid 1px white; border-right:solid 5px #0099cc; font-size:120%;" | POLLOCK
 
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|-
 
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| style="height:200px; width:150px; background-color:#0099cc; border-left:solid 5px #0099cc; border-bottom:solid 5px #0099cc; border-right:solid 5px #0099cc;" |  [[Software Modules | Software Modules]] <br> WebMO <br> NginX
 
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|}
 
  
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<br><br><br><br><br><br><br><br><br><br><br><br>
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Any user accessing *.cluster.earlham.edu and *.cs.earlham.edu is making calls on a 1Gb network.
  
 +
=== Intra-cluster fabrics ===
  
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== Systems Administration Documentation ==
+
The layout cluster has an Infiniband infrastructure. Wachowski has only a 1Gb infrastructure.
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===Most of these things below are OLD===
 
  
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{|
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== Power ==
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|- valign:"top"
 
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|
 
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<div style="border:10px solid #E3E0FA; padding:5px; width:230px; height:400px">
 
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<div style="background-color:#D7D1F8; padding:5px;">
 
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=== Works in Progress ===
 
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</div>
 
  
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* [[Sysadmin:todo13|To do before Fall 13 starts]]
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We have a backup power supply, with batteries last upgraded in 2019 (?). We’ve had a few outages since then and power has held up well.
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* [[Sysadmin:handbook|Handbook (WIP)]]
 
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* [[Sysadmin:Temporary Page | Temporary Page for Wiki Adjustment]]
 
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* [[Sysadmin: Upgrading FreeBSD | Upgrading FreeBSD]]
 
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* [[Sysadmin:Fail2Ban on FreeBSD | Fail2Ban on FreeBSD]]
 
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* [[Sysadmin:Running Nessus | Running Nessus]]
 
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* [[Sysadmin:SrvcCheck|Things to check when things go down]]
 
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* [[Sysadmin:AaronsHowTo| Aaron's How-To Pages]]
 
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* [[Sysadmin:Sonresources| Son's "Cook" Pages]]
 
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* [[Sysadmin:Setting up Lovelace Lab Machines | Setting up Lovelace Lab Machines]]
 
  
−
<!-- This has to stay as part of the formatting -->
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== HVAC ==
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</div>
 
  
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| style="float:left;" |
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HVAC systems are static and are largely managed by Facilities.
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|
 
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<div style="border:10px solid #E0EAF8; padding:5px; width:230px; height:400px">
 
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<div style="background-color:#CEDEF4; padding:5px;">
 
  
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=== Admin Tasks ===
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[[Topology|See full topology diagrams here.]]
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</div>
 
  
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* [[Sysadmin:NEWUser Management|NEW User Management]]
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[[Sysadmin:Layers of abstraction for filesystems|A word about what's happening between files and the drives they live on.]]
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* [[Sysadmin: NEWcupssetup|NEW CUPS/Printer Adiministration]]
 
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* [[Sysadmin: NEWAddComputer|NEW Add a computer]]
 
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* [[Sysadmin:NEWStart/Shutdown|NEW Shutdown/Start]]
 
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* [[Sysadmin:NEWMailman|NEW Mailman]]
 
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* [[Sysadmin:NEWNagios|NEW Nagios]]
 
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* [[Sysadmin:Backup|Backup]] (needs to be updated after new setup)
 
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* [[Sysadmin:Contacting all users|Contacting all users]]
 
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* [[Sysadmin:New Sysadmins|Welcoming a new sysadmin to the fold]]
 
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* [[Sysadmin:RT Ticketing|RT Ticketing]]
 
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* [[Sysadmin:AddComputer|Add a computer]]
 
  
 +
= New sysadmins =
  
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<!-- This has to stay as part of the formatting -->
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These pages will be helpful for you if you're just starting in the group:
−
</div>
 
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| style="float:left;" |
 
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|
 
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<div style="border:10px solid #FFDFFF; padding:5px; width:230px; height:400px;">
 
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<div style="background-color:#FFCEFF; padding:5px;">
 
  
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=== Services ===
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* [[Sysadmin:New Sysadmins | Welcoming a new sysadmin ]]
−
</div>
+
* [[Sysadmin:Troubleshooting|General troubleshooting tips for admins]]
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* [[Sysadmin:Services:Apache2|Apache2]]
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* [[Sandbox Notes|Sandbox Notes]]
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* [[Sysadmin:Services:Databases|Databases]]
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* [[Password managers]]
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* [[Sysadmin:Services:DNS and DHCP|DNS and DHCP]]
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* [[Server safety]]
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* [[Sysadmin:Services:Email|Email]]
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* [https://code.cs.earlham.edu/sysadmin/ticket-tracker Ticket tracking for current projects]
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* [[Sysadmin:Services:LVM|LVM]]
 
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* [[Sysadmin:User Management|User Management]]
 
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* [[Sysadmin:positron|NFS]]
 
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* [[Sysadmin:Services:Printers|Printers]]
 
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* [[Sysadmin:services:Sage|Sage]]
 
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* [[Sysadmin:Services:SystemImager|System Imager]]
 
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* [[Sysadmin:Services:TracSVN|Trac + svn]]
 
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* [[Sysadmin:Services:Virtualization | Virtualization]]
 
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* [[Sysadmin:Services:ZFS | ZFS]]
 
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* [[Sysadmin:Services:XenServerSetup | NEW New Xen Server]]
 
  
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<!-- This has to stay as part of the formatting -->
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Note: you'll need to log in with wiki credentials to see most Sysadmin pages.
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</div>
 
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||
 
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|
 
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<div style="border:10px solid #DBF0F7; padding:5px; width:230px; height:400px;">
 
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<div style="background-color:#C9EAF3; padding:5px;">
 
  
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=== Servers ===
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= Additional information =
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</div>
 
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* [[Sysadmin:PhysicalServers | Physical Servers]]
 
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* [[Sysadmin:VirtualServersAndJails | Virtual Servers and Jails]]
 
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* [[Sysadmin:SvcChart|Service Chart]]
 
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* [[Sysadmin:Monitoring|Monitoring]]
 
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* [[Sysadmin:Quark | Quark]]
 
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* [[Sysadmin:Forty-Two | Forty-two]]
 
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* [[Sysadmin:Lovelace | Lovelace]]
 
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* [[Sysadmin:Proto | Proto]]
 
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* [[Sysadmin:RetiredServers | Retired Servers]]
 
  
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<!-- This has to stay as part of the formatting -->
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These pages contain a lot of the most important information about our systems and how we operate.
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</div>
 
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||
 
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|}
 
  
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{|
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===Handy Tools===
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|- valign="top"
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* [http://monitor.cluster.earlham.edu:8088/packages Porter's Package Explorer]
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|
 
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<div style="border:10px solid #FFFFC8; padding:5px; width:230px; height:400px;">
 
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<div style="background-color:#FFFFB5; padding:5px;">
 
  
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=== ACL Workstations ===
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===Technical docs===
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</div>
 
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* [[Sysadmin:ACL:Installation|ACL Installation procedure]]
 
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* [[Sysadmin:AclImage|ACL Package Information]]
 
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* [[Sysadmin:Acl Locations|ACL Locations]]
 
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* [[Sysadmin:Software for Chemistry ACLs|Software for Chemistry ACLs]]
 
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* [[Sysadmin:ACL:UpProp|Proposed ACL Update policy]]
 
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* [[Sysadmin:ACL:ACLParallelCommands|NEW Run Command on all ACLS]]
 
  
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<!-- This has to stay as part of the formatting -->
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* [https://code.cs.earlham.edu/sysadmin/ticket-tracker Ticket tracking for current projects]
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</div>
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* [[Server safety]]
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| style="float:left;" |
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* [[Sysadmin:Backup|Backup]]
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|
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* [[Sysadmin:Monitoring | Monitoring ]]
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<div style="border:10px solid #D6F8DE; padding:5px; width:230px; height:400px;">
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* [[Sysadmin:SSH|SSH info relevant to admins]]
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<div style="background-color:#BDF4CB; padding:5px;">
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* [[Sysadmin:User Management | User Management]] and [[Sysadmin:LDAP|LDAP]] generally
 +
* [[Sysadmin:Jupyterhub Notebook Server|Jupyterhub]] and [[Nbgrader notes|NBGrader]]
 +
* [[Sysadmin:MailStack|Email service]]
 +
* [[Sysadmin:XenDocs | Xen Server]]
 +
* [[Sysadmin:NFS|Network File System (NFS)]]
 +
* [[Sysadmin:Web Servers|Web Servers and Websites]]
 +
* [[Sysadmin:Services:Databases|Databases]]
 +
* [[Sysadmin:DNS & DHCP|DNS and DHCP]]
 +
* [[Sysadmin:AWS|AWS]]
 +
* [[Bash_start_up_script|Bash startup scripts]]
 +
* [[Sysadmin:VirtualBox | VirtualBox]]
 +
* [[X Applications]]
 +
* [[Sysadmin:Services:ClusterOverview|Cluster Overview]] and [[Sysadmin:Ccg-admin|additional details]]
 +
* [[Sysadmin:Firewall|Firewall]] running on babbage.cs.e.e
 +
* [[Sysadmin:Setting_up_Lovelace_Lab_Machines|Setting up Lab Machines]]
  
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=== Networking ===
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===Common tasks===
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</div>
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* [[Sysadmin:Recurring Tasks | Recurring tasks - e.g. software updates, hardware replacements]]
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* [[Sysadmin:Networking:NetworkLayout|Network Layout (as of 08/2006)]]
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* [[Sysadmin:Contacting all users|Contacting all users]]
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* [[Sysadmin:Networking:D224 cable plant|D224 cable plant]]
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* [[Reset password]]
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* [[Sysadmin:Networking:Fiber plans|Fiber plans]]
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* [[Sysadmin:Software installation | Software installation]]
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* [[Sysadmin:Networking:Switches|Switches]]
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* [[Modules | Installing software under modules ]]  
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* [[Sysadmin:Networking:Rack notes|Rack notes]]
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* [[Sysadmin:AddComputer|Add a computer to CS or cluster domains]]
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* [[Sysadmin:Networking:Public|Public Network]]
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* [[Senior projects|Supporting senior projects]]
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* [[Sysadmin:Networking:NetworkTopo|Old Network Topo Figures]]
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* [[ShutdownProcedure|How to do a planned shutdown and reboot of the system]]
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* [[Sysadmin:Networking:NetworkDiagram|Network layout (May 2007)]]
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** [[Sysadmin:TestingServices | Testing services]] (after a reboot, upgrade, change in the phase of the moon, etc.)
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* [[Sysadmin:Networking:Alternate Network Path|Alt Network path]]
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* [[Sysadmin:Upgrading SSL Certificate | Upgrading SSL Certificates ]]
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* [[Sysadmin:UPS Setup]]
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* [[Sysadmin:Launch at startup|Launch a process at startup]]
−
 
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* [[Sysadmin:Psql-setup | setup psql for cs430 students]]
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<!-- This has to stay as part of the formatting -->
 
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</div>
 
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| style="float:left;" |
 
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|
 
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<div style="border:10px solid #F0DDD5; padding:5px; width:230px; height:400px;">
 
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<div style="background-color:#E4C0B1; padding:5px;">
 
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=== Miscellaneous ===
 
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</div>
 
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* [[SysadminContactInfo|Contact Information]]
 
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* [[Sysadmin:ImportantInfo:PhoneNumbers|Phone Numbers]]
 
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* [[Sysadmin:ImportantInfo:WebSites|Web Sites]]
 
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* [[Sysadmin:ImportantInfo:AuthenticationInfo|Authentication Information]]
 
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* [[Sysadmin:ImportantInfo:PowerFailure|Power Failure]]
 
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* [[Sysadmin:ImportantInfo:UPS|UPS]]
 
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* [[Sysadmin:ImportantInfo:SSLcerts|Generating SSL Certificates]]
 
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* [[Sysadmin:Power draws|Power draws]]
 
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* [[Sysadmin:ImportantInfo:SunHardware|Working with Sun Hardware]]
 
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* [[Sysadmin:Passwords]]
 
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* Patching
 
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** [[LinuxKernelPatching|Linux Kernel Patching]]
 
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** [[FreeBSDKernelPatching|FreeBSD Kernel Patching]]
 
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* [[Sysadmin:SerialConsoleCableEnds|Cable Ends]]
 
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* [[Sysadmin:VirtualizationComparison|NEW Virtualization Comparison]]
 
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<!-- This has to stay as part of the formatting -->
 
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</div>
 
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|}
 
−
 
 
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== Admins pages ==
 
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* [[Sysadmin:Vitalli|Vitalli]]
 
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* [[Sysadmin:James|James]]
 
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* [[Sysadmin:Bret|Bret]]
 
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* [[Sysadmin:Eamon|Eamon]]
 
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* [[Sysadmin:Wislon|Wilson]]
 
−
 
 
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== Sysadmin Responsibilities ==
 
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This is the basic list of tasks that Earlham CS system administrators are in charge of.
 
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{| class="wikitable"
 
−
|-
 
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! Responsibilities !! Wilson !! Eamon !! Vitalii !! James !! Bret
 
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|-
 
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| Install software on Debian (ACL) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Install software on FreeBSD (servers) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Being able to edit wiki || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
|Virtual Machine || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
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| Make a CS user account || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>  || || ||
 
−
|-
 
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| Change users CS password || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>  || || ||
 
−
|-
 
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| Add DNS & DHCP entry || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>  || || ||
 
−
|-
 
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| Make a CS wiki account || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
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| Add people to different groups (ldap) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>  || || ||
 
−
|-
 
−
| Modification and maintenance of Nagios || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| DD a new ACL image || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Set up a new ACL || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Shut down / start up of the entire machine room || ||  || || ||
 
−
|-
 
−
| Creating and configuring mailing lists (electron) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Admin list moderating || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  || || ||
 
−
|-
 
−
| Backups and restore (bacula) || ||  || || ||
 
−
|-
 
−
| Create and configure jails  || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || || ||
 
−
|-
 
−
| VMware ||  || || || ||
 
−
|}
 
−
 
 
−
== Sysadmin basic Training ==
 
−
This is the list of skills that our System Administrators are trained during their orientation.
 
−
 
 
−
{| class="wikitable"
 
−
|-
 
−
! Training Sections !! Wilson !! Eamon !! Vitalii !! James !! Bret
 
−
|-
 
−
| | || 
 
−
|-
 
−
| Wiki Editing || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Installing operating systems (Debian and FreeBSD), including single-user mode || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Installing packages || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| *nix Filesystem layout || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
 
−
|-
 
−
| Command line tools including I/O redirections and pipes ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| TCP,  UDP and ICMP packets, including 3-way handshake || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| Ports ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| DNS || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| DHCP  || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| Network debugging tools (tcpdump, ping, traceroute, netstat) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| Simple shell scripting || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || ||
 
−
|-
 
−
| Jails || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || || || ||
 
−
|}
 
  
−
[[Old:Old Documentation| Old Documentation]]
+
===Group and institution information===
 +
* [[Sysadmin:CS-ITS Interoperability|Working with ITS]]
 +
* [[Sysadmin:Recurring spending | Recurring spending ]]
 +
* [[Sysadmin:SlackAndGitLab | Slack and GitLab integration]]

Latest revision as of 09:32, 20 March 2024

This is the hub for the CS sysadmins on the wiki.

Overview

If you're visually inclined, we have a colorful and easy-to-edit map of our servers here!

Server room

Our servers are in Noyes, the science building that predates the CST. For general information about the server room and how to use it, check out this page.

Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM

Compute Resources

Machines and VMs related information here!

Network

We have two network fabrics linking the machines together. There are three subdomains.

10 Gb

We have 10Gb fabric to mount files over NFS. Machines with 10Gb support have an IP address in the class C range 10.10.10.0/24 and we want to add DNS to these addresses.

1 Gb (cluster, cs)

We have two class C subnets on the 1Gb fabric: 159.28.22.0/24 (CS) and 159.28.23.0/24 (cluster). This means we have double the IP addresses on the 1Gb fabric that we have on the 10Gb fabric.

Any user accessing *.cluster.earlham.edu and *.cs.earlham.edu is making calls on a 1Gb network.

Intra-cluster fabrics

The layout cluster has an Infiniband infrastructure. Wachowski has only a 1Gb infrastructure.

Power

We have a backup power supply, with batteries last upgraded in 2019 (?). We’ve had a few outages since then and power has held up well.

HVAC

HVAC systems are static and are largely managed by Facilities.

See full topology diagrams here.

A word about what's happening between files and the drives they live on.

New sysadmins

These pages will be helpful for you if you're just starting in the group:

Note: you'll need to log in with wiki credentials to see most Sysadmin pages.

Additional information

These pages contain a lot of the most important information about our systems and how we operate.

Handy Tools

Technical docs

Common tasks

Group and institution information

Retrieved from "https://wiki.cs.earlham.edu/index.php?title=Sysadmin&oldid=18143"