Difference between revisions of "Sysadmin"

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(Compute (servers and clusters))
 
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__NOTOC__
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This is the hub for the CS sysadmins on the wiki.
  
== Sysadmin Responsibilities ==
+
= Overview =
This is the basic list of tasks that Earlham CS system administrators are in charge of.  
+
 
 +
[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!]
 +
 
 +
== 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 [[Sysadmin:Server Room|this page]].
 +
 
 +
Columns: machine name, IPs, type (virtual, metal), purpose, dies, cores, RAM
 +
 
 +
== Compute Resources ==
 +
 
 +
 
 +
{| class="wikitable"
 +
|+ CS machines and VMs
 +
|-
 +
! Machine name !! 159 Ip Address !! 10Gb Ip address !! Operating System !! Metal or Virtual !! Description !! RAM
 +
|-
 +
| Bowie || 159.28.22.5 || 10.10.10.15 || Debian 9 || Metal || hosts and exports user files; Jupyterhub; landing server || 198 GB
 +
|-
 +
| Smiley || 159.28.22.251 || 10.10.10.252 || Ubuntu 18.04 || Metal || VM host, not accessible to regular users || 156 GB
 +
|-
 +
| Web || 159.28.22.2 || 10.10.10.200 || Ubuntu 18.04 || Virtual || Website host || 8 GB
 +
|-
 +
| Auth || 159.28.22.39 || No 10Gb internet|| CentOS 7 || Virtual || host of LDAP user database || 4 GB
 +
|-
 +
| Code || 159.28.22.42 || 10.10.10.42 || Ubuntu 18.04 || Virtual || Gitlab host || 8 GB
 +
|-
 +
| Net || 159.28.22.1 || 10.10.10.100 || Ubuntu 18.04 || Virtual || network administration host for CS || 4 GB
 +
|-
 +
| Central || 159.28.22.177 || No 10Gb internet || Debian 9 || Virtual || ODK Central Host || 4 GB
 +
|-
 +
| Urey || 159.28.22.139 || No 10Gb internet || XCP-ng || Metal || Sysadmin Sandbox Environment || 16 GB
 +
|}
  
 
{| class="wikitable"
 
{| class="wikitable"
 +
|+ Cluster machines
 
|-
 
|-
! Responsibilities !! Wilson !! Eamon
+
! Machine name !! 159 Ip Address !! 10Gb Ip address !! Operating System !! Metal or Virtual !! Description !! RAM
 
|-
 
|-
| 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>
+
| Hopper || 159.28.23.1 || 10.10.10.1 || Debian 10 || Metal || landing server, NFS host for cluster || 64 GB
 
|-
 
|-
| 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>
+
| Lovelace || 159.28.23.35 || 10.10.10.35 || CentOS 7 || Metal || Large compute server || 96 GB
 
|-
 
|-
| Make a CS user account || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Pollock || 159.28.23.8 || 10.10.10.8 || CentOS 7 || Metal || Large compute server || 131 GB
 +
|-  
 +
| Bronte || 159.28.23.140 || No 10Gb internet || CentOS 7 || Metal || Large compute server || 115 GB
 
|-
 
|-
| Change users CS password || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  
+
| Sakurai || 159.23.23.3 || 10.10.10.3 || Debian 10 || Metal || Runs Backup || 12 GB
 
|-
 
|-
| Add DNS & DHCP entry || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Miyamoto || 159.28.23.45 || No 10Gb currently || Debian 10 || Metal || Runs Backup || 16 GB
 
|-
 
|-
| 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>
+
| HopperPrime || 159.28.23.142 || 10.10.10.142 || Debian 10 || Metal || Runs Backup || 16 GB
 
|-
 
|-
| Make a CS wiki account || ||
+
| Monitor || 159.28.23.250 || No 10Gb internet || Debian 11 || Metal || Server Monitoring || 8 GB
 
|-
 
|-
| Add people to different groups (ldap) || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Layout 0 || 159.28.23.2 || 10.10.10.2 || CentOS 7 || Metal || Head Node || 32 GB
 
|-
 
|-
| Modification and maintenance of Nagios || ||
+
| Layout 1 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
|-
 
|-
| DD a new ACL image || ||
+
| Layout 2 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
|-
 
|-
| Set up a new ACL || ||  
+
| Layout 3 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
|-
 
|-
| Shut down / start up of the entire machine room || ||  
+
| Layout 4 || None || None || CentOS 7 || Metal || Compute Node || 32 GB
 
|-
 
|-
| Creating and configuring mailing lists (electron) || ||  
+
| Whedon 0 || 159.28.23.4 || No 10Gb internet|| CentOS 7 || Metal || Head Node || 256 GB
 
|-
 
|-
| Admin list moderating || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Whedon 1 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 
|-
 
|-
| Backups and restore (bacula) || ||  
+
| Whedon 2 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 
|-
 
|-
| Create and configure jails  || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Whedon 3 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 
|-
 
|-
| VMware || ||
+
| Whedon 4 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 +
|-
 +
| Whedon 5 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 +
|-
 +
| Whedon 6 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 +
|-
 +
| Whedon 7 || None || None || CentOS 7 || Metal || Compute Node || 256 GB
 +
|-
 +
| Hamilton 0 || 159.28.23.5 || No 10Gb internet || Debian 11 || Metal || Head Node || 128 GB
 +
|-
 +
| Hamilton 1 || None || None || Debian 11 || Metal || Compute Node || 256 GB
 +
|-
 +
| Hamilton 2 || None || None || Debian 11 || Metal || Compute Node || 256 GB
 +
|-
 +
| Hamilton 3 || None || None || Debian 11 || Metal || Compute Node || 256 GB
 +
|-
 +
| Hamilton 4 || None || None || Debian 11 || Metal || Compute Node || 256 GB
 +
|-
 +
| Hamilton 5 || None || None || Debian 11 || Metal || Compute Node || 256 GB
 
|}
 
|}
 
== Sysadmin basic Training ==
 
This is the list of skills that our System Administrators are trained during their orientation.
 
  
 
{| class="wikitable"
 
{| class="wikitable"
 +
|+ Lab machines
 
|-
 
|-
! Training Sections !! Wilson !! Eamon
+
! Machine name !! 159 Ip Address !! Location !! Operating System !! RAM
|-
 
| | ||  ||  ||
 
 
|-
 
|-
| Installing operating systems (Debian and FreeBSD), including single-user mode || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  
+
| Borg || 159.28.22.10 || Turing (CST 222) || Ubuntu 20 || 16 GB
 
|-
 
|-
| Installing packages || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  
+
| Gao || 159.28.22.11 || Turing (CST 222) || Ubuntu 20 || 8 GB
 
|-
 
|-
| *nix Filesystem layout || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||  
+
| Snyder || 159.28.22.12 || Turing (CST 222) || Ubuntu 20 || 8 GB
 
|-
 
|-
| 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> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
+
| Goldwasser || 159.28.22.13 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
 
|-
 
|-
| 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> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div>
+
| Bartik || 159.28.22.14 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
 
|-
 
|-
| Ports || <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>
+
| Wilson || 159.28.22.15 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
 
|-
 
|-
| DNS || || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Bilas || 159.28.22.16 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
 
|-
 
|-
| DHCP || || || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
+
| Johnson || 159.28.22.17 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
 
|-
 
|-
| Network debugging tools (tcpdump, ping, traceroute, netstat) || || || ||
+
| Graham || 159.28.22.14 || Lovelace (CST 219) || Ubuntu 20 || 8 GB
|-
 
| Simple shell scripting || ||  ||  ||
 
|-
 
| Jails || ||  || <div style="text-align: center;"> [[File:StarIconBronze.png|20px]] </div> ||
 
 
|}
 
|}
  
== Sysadmin 2014 to do list: ==
+
=== CS Machine Address List ===
 +
<pre>bowie.cs.earlham.edu smiley.cs.earlham.edu web.cs.earlham.edu auth.cs.earlham.edu code.cs.earlham.edu net.cs.earlham.edu central.cs.earlham.edu urey.cs.earlham.edu</pre>
  
* Installing X for Jim - XDM not gdm<br />
+
=== Cluster Machine Address List ===
* Setting up an ACL machine in D128 for Galileo<br />
+
<pre>
* Installing the rest of the ACL machinesin the ACl lab <br />
+
hopper.cluster.earlham.edu lovelace.cluster.earlham.edu pollock.cluster.earlham.edu bronte.cluster.earlham.edu sakurai.cluster.earlham.edu miyamoto.cluster.earlham.edu hopperprime.cluster.earlham.edu monitor.cluster.earlham.edu whedon.cluster.earlham.edu layout.cluster.earlham.edu hamilton.cluster.earlham.edu</pre>
* John H. Windows software <br />
 
* CS user simpler password change<br />
 
* Sage<br />
 
* Getting rid of Quark <br />
 
* Hostname change on ACLs (4 places)<br />
 
* Removing mailman form quark <br />
 
* Mailman Heather (not all of them accepted the changes electron to cs.earlham.edu) <br />
 
  
== Systems Administration Documentation ==
+
=== Lab Machine Address List ===
 +
<pre>borg.cs.earlham.edu gao.cs.earlham.edu snyder.cs.earlham.edu goldwasser.cs.earlham.edu bartik.cs.earlham.edu wilson.cs.earlham.edu bilas.cs.earlham.edu johnson.cs.earlham.edu graham.cs.earlham.edu</pre>
  
{|
+
=== Specialized resources ===
|- valign="top"
 
|
 
<div style="border:10px solid #E3E0FA; padding:5px">
 
<div style="background-color:#D7D1F8; padding:5px;">
 
=== Works in Progress ===
 
</div>
 
  
* [[Sysadmin:todo13|To do before Fall 13 starts]]
+
Specialized computing applications are supported on the following machines:
* [[Sysadmin:handbook|Handbook (WIP)]]
 
* [[Sysadmin:Temporary Page | Temporary Page for Wiki Adjustment]]
 
* [[Sysadmin: Upgrading FreeBSD | Upgrading FreeBSD]]
 
* [[Sysadmin:Fail2Ban on FreeBSD | Fail2Ban on FreeBSD]]
 
* [[Sysadmin:Running Nessus | Running Nessus]]
 
* [[Sysadmin:SrvcCheck|Things to check when things go down]]
 
* [[Sysadmin:AaronsHowTo| Aaron's How-To Pages]]
 
* [[Sysadmin:Sonresources| Son's "Cook" Pages]]
 
* [[Sysadmin:Installing ACLs]]
 
  
<!-- This has to stay as part of the formatting -->
+
* [[Sysadmin:GPGPU|GPU’s for AI/ML/data science]]: layout cluster
</div>
+
* virtualization: smiley
| style="width:50px;" |
+
* containers: bowie
|
 
<div style="border:10px solid #E0EAF8; padding:5px;">
 
<div style="background-color:#CEDEF4; padding:5px;">
 
  
=== Admin Tasks ===
+
== Network ==
</div>
 
  
* [[Sysadmin: NEWcupssetup|NEW CUPS setup]]
+
We have two network fabrics linking the machines together. There are three subdomains.
* [[Sysadmin: NEWAddComputer|NEW Add a computer]]
 
* [[Sysadmin:NEWStart/Shutdown|NEW Shutdown/Start]]
 
* [[Sysadmin:NEWMailman|NEW Mailman]]
 
* [[Sysadmin:NEWNagios|NEW Nagios]]
 
* [[Sysadmin:Backup|Backup]] (needs to be updated after new setup)
 
* [[Sysadmin:Contacting all users|Contacting all users]]
 
* [[Sysadmin:New Sysadmins|Welcoming a new sysadmin to the fold]]
 
* [[Sysadmin:RT Ticketing|RT Ticketing]]
 
* [[Sysadmin:AddComputer|Add a computer]]
 
  
 +
=== 10 Gb ===
  
<!-- This has to stay as part of the formatting -->
+
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.
</div>
 
|}
 
  
 +
=== 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.
|- valign="top"
 
|
 
  
<div style="border:10px solid #FFDFFF; padding:5px;">
+
Any user accessing *.cluster.earlham.edu and *.cs.earlham.edu is making calls on a 1Gb network.
<div style="background-color:#FFCEFF; padding:5px;">
 
  
=== Services ===
+
=== Intra-cluster fabrics ===
</div>
 
* [[Sysadmin:Services:Apache2|Apache2]]
 
* [[Sysadmin:Services:Databases|Databases]]
 
* [[Sysadmin:Services:DNS and DHCP|DNS and DHCP]]
 
* [[Sysadmin:Services:Email|Email]]
 
* [[Sysadmin:Services:SystemImager|System Imager]]
 
* [[Sysadmin:Services:LVM|LVM]]
 
* [[Sysadmin:positron|NFS]]
 
* [[Sysadmin:Services:Printers|Printers]]
 
* [[Sysadmin:Services:TracSVN|Trac + svn]]
 
* [[Sysadmin:User Management|User Management]]
 
* [[Sysadmin:Services:Virtualization | Virtualization]]
 
* [[Sysadmin:Services:ZFS | ZFS]]
 
  
<!-- This has to stay as part of the formatting -->
+
The layout cluster has an Infiniband infrastructure. Wachowski has only a 1Gb infrastructure.
</div>
 
| style="width:50px;" |
 
|
 
  
<div style="border:10px solid #DBF0F7; padding:5px;">
+
== Power ==
<div style="background-color:#C9EAF3; padding:5px;">
 
  
=== Servers ===
+
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.
</div>
 
* [[Sysadmin:PhysicalServers | Physical Servers]]
 
* [[Sysadmin:VirtualServersAndJails | Virtual Servers and Jails]]
 
* [[Sysadmin:SvcChart|Service Chart]]
 
* [[Sysadmin:Monitoring|Monitoring]]
 
* [[Sysadmin:Quark | Quark]]
 
* [[Sysadmin:Forty-Two | Forty-two]]
 
* [[Sysadmin:Lovelace | Lovelace]]
 
* [[Sysadmin:Proto | Proto]]
 
* [[Sysadmin:RetiredServers | Retired Servers]]
 
  
<!-- This has to stay as part of the formatting -->
+
== HVAC ==
</div>
 
| style="width:50px;" |
 
|
 
<div style="border:10px solid #FFFFC8; padding:5px;">
 
<div style="background-color:#FFFFB5; padding:5px;">
 
  
=== ACL Workstations ===
+
HVAC systems are static and are largely managed by Facilities.
</div>
 
* [[Sysadmin:ACL:Installation|ACL Installation procedure]]
 
* [[Sysadmin:AclImage|ACL Package Information]]
 
* [[Sysadmin:Acl Locations|ACL Locations]]
 
* [[Sysadmin:Software for Chemistry ACLs|Software for Chemistry ACLs]]
 
* [[Sysadmin:ACL:UpProp|Proposed ACL Update policy]]
 
  
<!-- This has to stay as part of the formatting -->
+
[[Topology|See full topology diagrams here.]]
</div>
 
|}
 
  
 +
[[Sysadmin:Layers of abstraction for filesystems|A word about what's happening between files and the drives they live on.]]
  
{|
 
|- valign="top"
 
|
 
<div style="border:10px solid #D6F8DE; padding:5px;">
 
<div style="background-color:#BDF4CB; padding:5px;">
 
=== Networking ===
 
</div>
 
* [[Sysadmin:Networking:NetworkLayout|Network Layout (as of 08/2006)]]
 
* [[Sysadmin:Networking:D224 cable plant|D224 cable plant]]
 
* [[Sysadmin:Networking:Fiber plans|Fiber plans]]
 
* [[Sysadmin:Networking:Switches|Switches]]
 
* [[Sysadmin:Networking:Rack notes|Rack notes]]
 
* [[Sysadmin:Networking:Public|Public Network]]
 
* [[Sysadmin:Networking:NetworkTopo|Old Network Topo Figures]]
 
* [[Sysadmin:Networking:NetworkDiagram|Network layout (May 2007)]]
 
* [[Sysadmin:Networking:Alternate Network Path|Alt Network path]]
 
* [[Sysadmin:UPS Setup]]
 
  
<!-- This has to stay as part of the formatting -->
+
= New sysadmins =
</div>
 
| style="width:50px;" |
 
|
 
<div style="border:10px solid #F0DDD5; padding:5px;">
 
<div style="background-color:#E4C0B1; padding:5px;">
 
  
=== Miscellaneous ===
+
These pages will be helpful for you if you're just starting in the group:
</div>
 
* [[SysadminContactInfo|Contact Information]]
 
* [[Sysadmin:ImportantInfo:PhoneNumbers|Phone Numbers]]
 
* [[Sysadmin:ImportantInfo:WebSites|Web Sites]]
 
* [[Sysadmin:ImportantInfo:AuthenticationInfo|Authentication Information]]
 
* [[Sysadmin:ImportantInfo:PowerFailure|Power Failure]]
 
* [[Sysadmin:ImportantInfo:UPS|UPS]]
 
* [[Sysadmin:ImportantInfo:SSLcerts|Generating SSL Certificates]]
 
* [[Sysadmin:Power draws|Power draws]]
 
* [[Sysadmin:ImportantInfo:SunHardware|Working with Sun Hardware]]
 
* [[Sysadmin:Passwords]]
 
* Patching
 
** [[LinuxKernelPatching|Linux Kernel Patching]]
 
** [[FreeBSDKernelPatching|FreeBSD Kernel Patching]]
 
* [[Sysadmin:SerialConsoleCableEnds|Cable Ends]]
 
  
<!-- This has to stay as part of the formatting -->
+
* [[Sysadmin:New Sysadmins | Welcoming a new sysadmin ]]
</div>
+
* [[Sysadmin:Troubleshooting|General troubleshooting tips for admins]]
|}
+
* [[Sandbox Notes|Sandbox Notes]]
 +
* [[Password managers]]
 +
* [[Server safety]]
 +
* [https://code.cs.earlham.edu/sysadmin/ticket-tracker Ticket tracking for current projects]
  
 +
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.
  
 +
===Technical docs===
  
=== Old ===
+
* [https://code.cs.earlham.edu/sysadmin/ticket-tracker Ticket tracking for current projects]
 +
* [[Server safety]]
 +
* [[Sysadmin:Backup|Backup]]
 +
* [[Sysadmin:Monitoring | Monitoring ]]
 +
* [[Sysadmin:SSH|SSH info relevant to admins]]
 +
* [[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]]
  
Important Notes:
+
===Common tasks===
* '''''ALL of the admin '''''  '''CVS/SVN stuff has been centralized to trac.cs.earlham.edu/admin'''.  You'll need to create a username/password for yourself by running (from quark):
+
* [[Sysadmin:Recurring Tasks | Recurring tasks - e.g. software updates, hardware replacements]]
:<code>htpasswd /usr/local/trac/adminontrac.htpasswd <username></code>
+
* [[Sysadmin:Contacting all users|Contacting all users]]
* To check out the repository, run (from quark):
+
* [[Reset password]]
:<code>svn checkout file:///clients/users/svn/admin</code>
+
* [[Sysadmin:Software installation | Software installation]]
* [[Sysadmin:IRC|Chatting on IRC]]
+
* [[Modules | Installing software under modules ]]
 +
* [[Sysadmin:AddComputer|Add a computer to CS or cluster domains]]
 +
* [[Senior projects|Supporting senior projects]]
 +
* [[ShutdownProcedure|How to do a planned shutdown and reboot of the system]]
 +
** [[Sysadmin:TestingServices | Testing services]] (after a reboot, upgrade, change in the phase of the moon, etc.)
 +
* [[Sysadmin:Upgrading SSL Certificate | Upgrading SSL Certificates ]]
 +
* [[Sysadmin:Launch at startup|Launch a process at startup]]
 +
* [[Sysadmin:Psql-setup | setup psql for cs430 students]]
  
'''Curent Sysadmins 2013:'''
+
===Group and institution information===
{| class="wikitable"
+
* [[Sysadmin:CS-ITS Interoperability|Working with ITS]]
|-
+
* [[Sysadmin:Recurring spending | Recurring spending ]]
! SysAdmin Name !! Year !! Working time !! Progress notes
+
* [[Sysadmin:SlackAndGitLab | Slack and GitLab integration]]
|-
 
| Wilson || SO || 100% || link to notes
 
|-
 
| Demise || SR || 100% || link to notes
 
|-
 
| Craig || FR || 100% || link to notes
 
|-
 
| Zane || SO || 100% || link to notes
 
|-
 
| Jordan || SO || 100% || link to notes
 
|-
 
| Sonny || JU || 100% || link to notes
 
|-
 
| Elena || SR || 40% || link to notes
 
|-
 
| Kristin || JU || 40% || link to notes
 
|-
 
| Aaron || SR || 20% || link to notes
 
|-
 
| Michael || SR || 0% || link to notes
 
|}
 

Latest revision as of 11:15, 1 June 2022

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

CS machines and VMs
Machine name 159 Ip Address 10Gb Ip address Operating System Metal or Virtual Description RAM
Bowie 159.28.22.5 10.10.10.15 Debian 9 Metal hosts and exports user files; Jupyterhub; landing server 198 GB
Smiley 159.28.22.251 10.10.10.252 Ubuntu 18.04 Metal VM host, not accessible to regular users 156 GB
Web 159.28.22.2 10.10.10.200 Ubuntu 18.04 Virtual Website host 8 GB
Auth 159.28.22.39 No 10Gb internet CentOS 7 Virtual host of LDAP user database 4 GB
Code 159.28.22.42 10.10.10.42 Ubuntu 18.04 Virtual Gitlab host 8 GB
Net 159.28.22.1 10.10.10.100 Ubuntu 18.04 Virtual network administration host for CS 4 GB
Central 159.28.22.177 No 10Gb internet Debian 9 Virtual ODK Central Host 4 GB
Urey 159.28.22.139 No 10Gb internet XCP-ng Metal Sysadmin Sandbox Environment 16 GB
Cluster machines
Machine name 159 Ip Address 10Gb Ip address Operating System Metal or Virtual Description RAM
Hopper 159.28.23.1 10.10.10.1 Debian 10 Metal landing server, NFS host for cluster 64 GB
Lovelace 159.28.23.35 10.10.10.35 CentOS 7 Metal Large compute server 96 GB
Pollock 159.28.23.8 10.10.10.8 CentOS 7 Metal Large compute server 131 GB
Bronte 159.28.23.140 No 10Gb internet CentOS 7 Metal Large compute server 115 GB
Sakurai 159.23.23.3 10.10.10.3 Debian 10 Metal Runs Backup 12 GB
Miyamoto 159.28.23.45 No 10Gb currently Debian 10 Metal Runs Backup 16 GB
HopperPrime 159.28.23.142 10.10.10.142 Debian 10 Metal Runs Backup 16 GB
Monitor 159.28.23.250 No 10Gb internet Debian 11 Metal Server Monitoring 8 GB
Layout 0 159.28.23.2 10.10.10.2 CentOS 7 Metal Head Node 32 GB
Layout 1 None None CentOS 7 Metal Compute Node 32 GB
Layout 2 None None CentOS 7 Metal Compute Node 32 GB
Layout 3 None None CentOS 7 Metal Compute Node 32 GB
Layout 4 None None CentOS 7 Metal Compute Node 32 GB
Whedon 0 159.28.23.4 No 10Gb internet CentOS 7 Metal Head Node 256 GB
Whedon 1 None None CentOS 7 Metal Compute Node 256 GB
Whedon 2 None None CentOS 7 Metal Compute Node 256 GB
Whedon 3 None None CentOS 7 Metal Compute Node 256 GB
Whedon 4 None None CentOS 7 Metal Compute Node 256 GB
Whedon 5 None None CentOS 7 Metal Compute Node 256 GB
Whedon 6 None None CentOS 7 Metal Compute Node 256 GB
Whedon 7 None None CentOS 7 Metal Compute Node 256 GB
Hamilton 0 159.28.23.5 No 10Gb internet Debian 11 Metal Head Node 128 GB
Hamilton 1 None None Debian 11 Metal Compute Node 256 GB
Hamilton 2 None None Debian 11 Metal Compute Node 256 GB
Hamilton 3 None None Debian 11 Metal Compute Node 256 GB
Hamilton 4 None None Debian 11 Metal Compute Node 256 GB
Hamilton 5 None None Debian 11 Metal Compute Node 256 GB
Lab machines
Machine name 159 Ip Address Location Operating System RAM
Borg 159.28.22.10 Turing (CST 222) Ubuntu 20 16 GB
Gao 159.28.22.11 Turing (CST 222) Ubuntu 20 8 GB
Snyder 159.28.22.12 Turing (CST 222) Ubuntu 20 8 GB
Goldwasser 159.28.22.13 Lovelace (CST 219) Ubuntu 20 8 GB
Bartik 159.28.22.14 Lovelace (CST 219) Ubuntu 20 8 GB
Wilson 159.28.22.15 Lovelace (CST 219) Ubuntu 20 8 GB
Bilas 159.28.22.16 Lovelace (CST 219) Ubuntu 20 8 GB
Johnson 159.28.22.17 Lovelace (CST 219) Ubuntu 20 8 GB
Graham 159.28.22.14 Lovelace (CST 219) Ubuntu 20 8 GB

CS Machine Address List

bowie.cs.earlham.edu smiley.cs.earlham.edu web.cs.earlham.edu auth.cs.earlham.edu code.cs.earlham.edu net.cs.earlham.edu central.cs.earlham.edu urey.cs.earlham.edu

Cluster Machine Address List

hopper.cluster.earlham.edu lovelace.cluster.earlham.edu pollock.cluster.earlham.edu bronte.cluster.earlham.edu sakurai.cluster.earlham.edu miyamoto.cluster.earlham.edu hopperprime.cluster.earlham.edu monitor.cluster.earlham.edu whedon.cluster.earlham.edu layout.cluster.earlham.edu hamilton.cluster.earlham.edu

Lab Machine Address List

borg.cs.earlham.edu gao.cs.earlham.edu snyder.cs.earlham.edu goldwasser.cs.earlham.edu bartik.cs.earlham.edu wilson.cs.earlham.edu bilas.cs.earlham.edu johnson.cs.earlham.edu graham.cs.earlham.edu

Specialized resources

Specialized computing applications are supported on the following machines:

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.

Technical docs

Common tasks

Group and institution information