Linux Working Group

Meeting Date

• TEAMS: 2023-07-26

Invited

• Anthony (group leader), Clayton, Guoxiang, Nathan, Nick, Todd, Ed

Attendees

• Anthony (group leader), Clayton, Guoxiang, Nathan, Nick, Todd, Ed, Devon

Review and accept previous meeting minutes.

• CsLWGMeeting20230712

Review last meeting's Action Items

• Homedirectory quotas (a2brenna) - RTs: 1112506, 1288354,1298614 et al
  • 100 GB quotas in staged roll out, plan detailed in tickets above
    • Timeline?
  • Tooling to generate quota information
    • Calculate current quotas from sponsorship information (Clayton)
      • Need to determine when quota data will be populated in SAT
      • Clayton suggests adding up all sponsored quotes and giving them either that, or the minimum 100GB quota (whichever is bigger).
      • RT1298614

• Snapshots are still disabled, when are they to be re-enabled? (a2brenna)
  • Snapshots appear to be enabled in the GENERAL environment, but not in TEACHING. I am now fielding complaints from students. (a2brenna)
    • Were disabled at Nick's request, will be re-enabled.
      • Have not been re-enabled
      • Need more input from Lori * Turned off due to performance and due to the fact we want user to delete files * Once backups are complete (proceeding) * Decided to turn snapshots back on since this is the spring term * Nathan to enable snapshots
  • See RT: 1252069

• Sunsetting *-202.cloud.cs.uwaterloo.ca (18.04 Infrastructure Cloud hosts) (a2brenna)
  • Containers need to be migrated
    • mail-106.cs.uwaterloo.ca
    • mx-106.cs.uwaterloo.ca
    • mx-004.student.cs.uwaterloo.ca
    • mail-004.student.cs.uwaterloo.ca
    • dc-nfs-002.student.cs.uwaterloo.ca
    • dc-samba-002.student.cs.uwaterloo.ca
    • dc-samba-102.cs.uwaterloo.ca
    • dc-nfs-104.cs.uwaterloo.ca
    • m3-samba-002.student.cs.uwaterloo.ca
    • m3-samba-102.cs.uwaterloo.ca
    • m3-nfs-104.cs.uwaterloo.ca
    • mc-nfs-002.student.cs.uwaterloo.ca
    • mc-samba-002.student.cs.uwaterloo.ca
    • mc-samba-012.student.cs.uwaterloo.ca
    • mc-samba-102.cs.uwaterloo.ca
    • mc-nfs-006.student.cs.uwaterloo.ca
  • Upgrading from 18.04 to 20.04
  • Upgrading from 20.04 to 22.04

New Business

• CS VPN Issues
  • Initial failure caused by reliance on IST DNS
    • "fixed" by adding a CS DNS server to each openvpn endpoint
  • As of this morning, broken again for reasons unknown
  • RT 1301028

* AMD Zenbleed vulnerability (CVE-2023-20539)

• • 203 cloud servers will need to be rebooted once patch is available
  • RT 1300871

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