Sysadmin

Machines and Brief Descriptions of Services

CS Machines

Server layout as of May 2017

NET (vm1)

LDAP Server DNS DHCP Backup to Dali: etc, var

WEB (vm2)

Mailman Mail Stack Apache2 PostgresQL MySQL Wiki Backup to Dali: etc, var

TOOLS (vm3)

SageNB Server Jupyterhub Server Software Modules NginX SSH Users Backup to Dali: etc, var, mnts, sage

BABBAGE

Firewall

PROTO

Weather Monitoring GPS/NTP Energy Monitoring Backup to Dali: etc, var

CONTROL

Users SSH HOME TOOLS Backup to Dali: etc, var

SMILEY

XenDocs NET WEB NFS Backup to Dali: etc, var

SHINKEN

Users SSH Add machines

MURPHY

Elderly email stack Users SSH

HOME (vm0)

SSH NFS Backup to Dali: eccs, etc, var deprecated 07-2018

Cluster Machines

HOPPER

Users SSH NFS server LDAP server Software Modules PostgreSQL Wiki Apache2 DNS DHCP Backup to Dali: etc, var, cluster

INDIANA

New Storage Server

DALI

Storage Server Gitlab Backups NginX Backup to Dali (/media/r10_vol/backups/): etc, var/opt/gitlab/backups

AL-SALAM

WebMO Software Modules Apache2 Backup to Dali: etc, var

LAYOUT

Jupyterhub Server Software Modules NginX Apache2 WebMO Backup to Dali: etc, var

BRONTE

Software Modules Backup to Dali: etc, var, nbserver

POLLOCK

Software Modules WebMO NginX Backup to Dali: etc, var

KAHLO

Storage Server Backups NginX Backup to Dali: etc, var

BIGFE

Software Modules Hosts BCCD related repositories and distributions.

T-VOC

Software Modules

ELWOOD

Software Modules Used by BCCD to host www.bccd.net and www.littlefe.net. Will be deprecated when BCCD project offloads their sites onto cloud-based hosting platforms.

krasner

Docker platform on an old lovelace machine upgraded to have 16GB of RAM.

Switches

SG538SF02J

Model: HP Procurve 3400cl Ports: 24 Backplane bandwidth: 88 Gbps 64 million pps Memory: 2MB packet buffer 16 MB dual flash 128 MB SDRAM Cut-through switching: No Unused as of May 12, 2017

CN63FP762S

Model: HP 2530-24G Ports: 24 Switching Capacity: 56 Gbps 41.6 million pps Memory: 1.5 MB packet buffer 256 MB flash 128 MB DDR3 DIMM Cut-through switching: No Connected to Al-Salam as of May 12, 2017

SG525SG025

Model: HP Procurve 3400cl Ports: 24 Backplane bandwidth: 88 Gbps 64 million pps Memory: 2MB packet buffer 16 MB dual flash 128 MB SDRAM Cut-through switching: No Connected to layout and whedon as of May 12, 2017

Netgear JGS524

Current cluster head-node Unmanaged (no console/configuration) Ports: 24 Switching bandwidth: 48 Gbps 1.5 million pps Memory: 2MB packet buffer Cut-through switching: No Connected to Al-Salam, Hopper, Pollock, Nagios, Dali, Kahlo, Bronte as of May 12, 2017

cs-main

Model: HP 5920AF-24XG Ports: 24 Backplane bandwidth: 480 Gbps 367 million pps Memory: 3.6 GB packet buffer 256 MB dual flash 2 GB SDRAM Cut-through switching: Yes IP Address: 159.28.31.66 Connected to layout, kahlo, and dali as of May 12, 2017

5500denniscs-sw1

Model: HP 5500 JG542A Ports: 24 Backplane bandwidth: 224 Gbps 166.6 million pps Memory: 6 MB packet buffer 512 MB dual flash 1 GB SDRAM Cut-through switching: No IP Address: 159.28.31.67 Connected to Babbage, Control, Nagios, and the cluster's netgear switch (via port 14) as of May 12, 2017

Systems Administration Documentation

For old documentation, see: Old Wiki Information

Admin Tasks Nagios Monitoring Shinken Monitoring Upgrading SSL Certificates User Management Installing software under modules Backup Contacting all users Welcoming a new sysadmin to the fold Add a computer Setting up Lovelace Lab Machines Reset password

Services Cluster Overview Apache2 Databases DNS and DHCP Virtualization Xen Server

Miscellaneous Shutdown and Boot up Contact Information Phone Numbers Authentication Information UPS Generating SSL Certificates Power draws Working with Sun Hardware Sysadmin:Passwords Patching Linux Kernel Patching Cable Ends NEW Virtualization Comparison

Networking Network Layout (as of 08/2006) D224 cable plant Fiber plans Switches Rack notes Public Network Old Network Topo Figures Network layout (May 2007) Alt Network path Sysadmin:UPS Setup

Current Projects

This is the list we will work from in addition to service requests.

• Proposal to update our task process: Sysadmin/Task_Process
• Possibly: update CentOS on Pollock and Bronte
• Mailing list archives are gone
• Graceful shutdown during outage
• Web logins
• Reinstall OS's on Lovelace and Hamilton machines
  • Hamilton: installed, can ssh, so can do whatever else we need
  • Lovelace machine: still no Internet
• shinken: web is back, need to check status
• layout node outside machine room - Eli interested
• layout: make different node the head node?
• passwords
• email to users (automated)
• check Lovelace DNS file - check what machines we have vs. what's in the DNS file?
• check backup statuses of machines, see the wiki page on this - also backup.cs.e.e (indiana?)
• Password auditing script
• FIFO for requests rather than ad-hoc
• Accounting for hours logged

From the summer, possible followup

• 159.28.23.26 is a ghost machine - it responds to ping and purportedly exists, but we are unsure where it is or what it is. - ping -f - Eli looking into it in the context of al-salam
• Power map additions and updates
• nbgrader - setup continues
• indiana config
• Hadoop on Whedon - Vitalii and Adam (stuck on ?) - talk to Ajit