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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|}
 
−
----
 
  
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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 ==
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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:Nagios | Nagios Monitoring ]]
 
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* [[Sysadmin:Backup|Backup]]
 
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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]]
 
  
 +
[[Sysadmin:Layers of abstraction for filesystems|A word about what's happening between files and the drives they live on.]]
  
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<!-- This has to stay as part of the formatting -->
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= New sysadmins =
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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 #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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These pages will be helpful for you if you're just starting in the group:
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</div>
 
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* [[Sysadmin:Services:Apache2|Apache2]]
 
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* [[Sysadmin:Services:Databases|Databases]]
 
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* [[Sysadmin:Services:DNS and DHCP|DNS and DHCP]]
 
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* [[Sysadmin:Services:Email|Email]]
 
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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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* [[Sysadmin:New Sysadmins | Welcoming a new sysadmin ]]
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</div>
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* [[Sysadmin:Troubleshooting|General troubleshooting tips for admins]]
−
||
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* [[Sandbox Notes|Sandbox Notes]]
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|
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* [[Password managers]]
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<div style="border:10px solid #DBF0F7; padding:5px; width:230px; height:400px;">
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* [[Server safety]]
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<div style="background-color:#C9EAF3; padding:5px;">
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* [https://code.cs.earlham.edu/sysadmin/ticket-tracker Ticket tracking for current projects]
  
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=== Servers ===
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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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* [[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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= Additional information =
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</div>
 
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||
 
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|}
 
  
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{|
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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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|- valign="top"
 
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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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=== Lovelace Workstations ===
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===Handy Tools===
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</div>
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* [http://monitor.cluster.earlham.edu:8088/packages Porter's Package Explorer]
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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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===Technical docs===
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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 #D6F8DE; padding:5px; width:230px; height:400px;">
 
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<div style="background-color:#BDF4CB; padding:5px;">
 
  
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=== Networking ===
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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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* [[Sysadmin:Networking:NetworkLayout|Network Layout (as of 08/2006)]]
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* [[Sysadmin:Backup|Backup]]
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* [[Sysadmin:Networking:D224 cable plant|D224 cable plant]]
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* [[Sysadmin:Monitoring | Monitoring ]]
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* [[Sysadmin:Networking:Fiber plans|Fiber plans]]
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* [[Sysadmin:SSH|SSH info relevant to admins]]
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* [[Sysadmin:Networking:Switches|Switches]]
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* [[Sysadmin:User Management | User Management]] and [[Sysadmin:LDAP|LDAP]] generally
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* [[Sysadmin:Networking:Rack notes|Rack notes]]
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* [[Sysadmin:Jupyterhub Notebook Server|Jupyterhub]] and [[Nbgrader notes|NBGrader]]
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* [[Sysadmin:Networking:Public|Public Network]]
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* [[Sysadmin:MailStack|Email service]]
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* [[Sysadmin:Networking:NetworkTopo|Old Network Topo Figures]]
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* [[Sysadmin:XenDocs | Xen Server]]
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* [[Sysadmin:Networking:NetworkDiagram|Network layout (May 2007)]]
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* [[Sysadmin:NFS|Network File System (NFS)]]
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* [[Sysadmin:Networking:Alternate Network Path|Alt Network path]]
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* [[Sysadmin:Web Servers|Web Servers and Websites]]
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* [[Sysadmin:UPS Setup]]
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* [[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]]
  
−
<!-- This has to stay as part of the formatting -->
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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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| style="float:left;" |
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* [[Sysadmin:Contacting all users|Contacting all users]]
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|
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* [[Reset password]]
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<div style="border:10px solid #F0DDD5; padding:5px; width:230px; height:400px;">
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* [[Sysadmin:Software installation | Software installation]]
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<div style="background-color:#E4C0B1; padding:5px;">
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* [[Modules | Installing software under modules ]]  
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* [[Sysadmin:AddComputer|Add a computer to CS or cluster domains]]
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=== Miscellaneous ===
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* [[Senior projects|Supporting senior projects]]
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</div>
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* [[ShutdownProcedure|How to do a planned shutdown and reboot of the system]]
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* [[SysadminContactInfo|Contact Information]]
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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:ImportantInfo:PhoneNumbers|Phone Numbers]]
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* [[Sysadmin:Upgrading SSL Certificate | Upgrading SSL Certificates ]]
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* [[Sysadmin:ImportantInfo:WebSites|Web Sites]]
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* [[Sysadmin:Launch at startup|Launch a process at startup]]
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* [[Sysadmin:ImportantInfo:AuthenticationInfo|Authentication Information]]
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* [[Sysadmin:Psql-setup | setup psql for cs430 students]]
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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>
 
−
|-
 
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| 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>
 
−
|-
 
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| 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>
 
−
|-
 
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|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>  || || ||
 
−
|-
 
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| 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 08:32, 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

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