Notices

CS IT STAFF AVAILABILITY

• The CS IT Support staff is back in Malone Hall. Our group is working a hybrid schedule with some of us working remotely on certain days, while others of our team are on campus.
• We continue being available M-F, 8:30 to 5pm, but there may be certain times we might be online only.
• Therefore, please remember to email support@cs.jhu.edu for assistance.
• Also, please have Zoom available on your device(s), so that we can arrange to contact you using that method, as an alternative to in-person communication.
• For the time being, Steve DeBlasio, our accounts liaison, is providing a virtual version of his daily office hours for accounts, etc. Email support@cs.jhu.edu for details.

CS IT SERVICE OUTAGES (Unplanned & Planned)

UNPLANNED CS IT SERVICE OUTAGES

None at this time.

PLANNED CS IT SERVICE OUTAGES

OUTAGE 1: Linux Lab Systems Not Accessible During Upgrades

WHEN: Tuesday, August 19 through Friday, August 22

WHAT: Subsets of the CS Linux clients will be down for upgrades over the course of the week.

UPDATE: As of about 12:30 on Tuesday, all ugrad systems from ugrad1 through ugrad12 have been upgraded.

DETAILS: We will be upgrading our Linux clients from Fedora 40 to Fedora 42. This will require having the clients offline during the upgrades. We'll do this in stages, so there will always be some clients available at all times.

The lab machines whose numbers are integer multiples of five (ugrad5, ugrad10, ugrad15, ugrad20, masters5, masters10, and masters15) have already been upgraded (those are the staging systems we mentioned in a recent email to the CS faculty and students), so those will remain available throughout the week. The upgrade schedule for the remainder of the systems will be as follows:

• On Tuesday, August 19, ugrad1 through ugrad12 (located in MH-122) will be upgraded (...except for ugrad5 and ugrad10, which are already done.)
• On Wednesday, August 20, ugrad13 through ugrad24 and masters1 through masters16 (located in MH-G61) will be upgraded (...except for ugrad15, ugrad20, masters5, masters10, and masters15, which are already done.)
• On Thursday, August 21, ugradx and gradx (remotely-accessible only) will be upgraded.
• On Friday, August 22, ugradz and gradz (remotely-accessible only) will be upgraded, along with any systems we were unable to upgrade earlier in the week.

Expect each system being upgraded to be unavailable between 9:00 am and 4:00 pm on the days for which it's scheduled. If a system remains unavailable after 4:00 pm on its scheduled day, this CS IT Support Wiki's Notices page will be updated with the appropriate information.

Outage 2: Full CS IT Services Outage Due To A JHU-Planned Network Outage

WHAT: There will be no CS IT computing services available during an upcoming JHU-planned networking outage in Malone Hall.

WHEN: JHU's Planned Network Outage -- Wednesday, August 27, 2025, from 8pm through midnight.

DESCRIPTION: JHU is planning an up to 4-hour network outage at Malone Hall to install new networking equipment, and as such, without any network during some or all of this time frame, our computing services will be unavailable during that time. JHU Networking indicates the outage may only be in place for the first 2 hours of that 4-hour window. But, just in case, we are assuming our services will be unavailable for up to the 4 hours.

Tracking Our CS IT Services Status Updates During The JHU-Planned Malone Network Outage

Because we will not have network access to our servers in Malone Hall, the CS IT Support Wiki, and especially this Notices page ( https://support.cs.jhu.edu/wiki/Notices ) will be unavailable during the outage. Instead, during the outage, we have arranged for status updates to be available at the following website (served at an off-site facility):

https://csstatus.jhu.edu We will update that page soon with this information.

(Bookmark that link ahead of time, in case you can't access your CS mail during the outage.)

As soon as we're able to do so after the Network outage, we'll also make this Notices page available again.

CS IT Services Unavailable During The JHU-Planned Network Outage Include...

• DNS resolution (hostname lookups) for all cs.jhu.edu hostnames will be unavailable. This will affect all websites with cs.jhu.edu domain names, even if the website is hosted by someone other than the CS department.

• CS Mail service, both incoming and outgoing, will be suspended for CS Grad/Research Net users. And some CS email services will not be available for CS Ugrad Net users.
  • Incoming mail should be queued by the sender until our mail service is back up again. Outgoing mail will not be available.
  • Outgoing CS mail will not be available to Grad Net users, but since CS Ugrads can send through the JHU mail server, CS Ugrads might still be able to send email during the outage (just not from a Malone Hall–based computer.)
  • IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.

• No CS webpages will be available. This includes the main CS website. And if you host a website with .cs.jhu.edu in its hostname, it too, will be unavailable. And, as mentioned above... because we will not have networking access to our servers, the CS IT Support Wiki, and especially its Notices page will be unavailable during the outage. Please refer to https://csstatus.jhu.edu for status updates during the outage.

• Grad/Research Net and Ugrad Net user accounts and home directories will be inaccessible during the network outage.

• ssh service to our CS Grad/Research Net & Ugrad Net Linux boxes (masters1 through masters16, ugrad1 through ugrad24, gradx, gradz, ugradx, and ugradz) will be unavailable.

• Console (desktop) access at any of our lab Linux client systems will be unavailable.

• SMB (SAMBA) File Shares (the CS Office Staff and some others use these) will be unavailable.

• MySQL service via the mysql.cs.jhu.edu server and through the dbase.cs.jhu.edu server will be unavailable.

• Since this is a JHU-planned network outage, there will be no network connections in Malone Hall.

• Wifi access points in Malone Hall will not have network accessibility during that time.

CS COMPUTING LAB AVAILABILITY

MH 122 (CS Undergrad Lab/Collaboration room) is available for in-person access.

MH G61 (CS Masters/Ugrad Labs) is available for in-person access.

AUDIO/VISUAL (A/V) OUTAGES

None at this time.