CS Network Status
This page lists both active and recently closed CS network alerts. If you would like more information about an alert, or if you have an issue you would like to report, send email to helpdesk [-at-] cs [dot] umd [dot] edu or call extension 52720.
Current Active Alerts
1 current active alerts
| Updated | Issue | Summary | Impact |
|---|---|---|---|
| 06.25.2026 19:36 | 07/02/2026 9:00 p.m. - 07/03/2026 12:00 a.m. NFS server maintenance |
The NFS server will be upgraded. - "junkfood" home directory - Personal web pages, /fs/wwwusers - Class and Project directories, e.g., class web pages. fs/instruct & /fs/proj |
Heavy |
Past Alerts
| Updated | Issue | Summary | Impact |
|---|---|---|---|
| 01.22.2023 14:06 | Failover testing completed - contact the helpdesk if you have any network issues | None | |
| 01.22.2023 14:05 | Network Failover Testing - Sunday, Jan 22, 1-8PM |
Likely minimal packet loss, possiblility of up to 2.5 minute total outage for all department<->campus traffic (IRB<->datacenter traffic should not be affected). |
Light |
| 12.31.2022 22:03 | Identity Management Servers Maintenance - Monday, December 26, 10am - 2pm |
Upgrades will be performed on additional identity management servers (CS authentication, LDAP, DNS). Because of the redundancy, we expect minimal impact to our user community. |
Moderate |
| 12.31.2022 22:03 | Web load balancer upgrades - Tuesday, December 27, 6:30pm - midnight |
Our web load balancers will be updated. Because of redundancy, we expect minimal impact to our user community. SSH connections to GitLab may fail momentarily. |
Light |
| 12.31.2022 22:03 | Network Maintenance Completed - More work to follow |
The major work scheduled for December 25 has been completed. We are aware that UDP traceroute may not complete at this time. Watch for additional announcements. |
Light |
| 12.26.2022 00:14 | Identity Management Servers Maintenance - Saturday, December 24, 7-9pm |
Upgrades will be performed on one of several identity management servers (CS authentication, LDAP, DNS). Because of the redundancy, we expect minimal impact to our user community. |
Light |
| 12.26.2022 00:12 | Core network upgrade - Sunday, December 25, 1 PM to midnight |
Network outage of up to 20 minutes projected in early afternoon. Other intermittent network disruptions of a short duration and packet loss are possible for all traffic through the CS datacenter during the full maintenance window. Users in IRB may experience packet loss but should not experience a network outage to the internet. |
Heavy |
| 12.22.2022 11:57 | FTP Service Discontinued |
The CS FTP service has been discontinued. The content previously accessible at ftp://ftp.cs.umd.edu is still accessible at https://ftp.cs.umd.edu. |
Light |
| 12.07.2022 14:50 | Windows/Samba File Shares - Server IP Addresses Changed |
The IP addresses for all Windows/Samba file servers have changed. If you can not access shares/samba, please clear your DNS cache and/or contact the helpdesk. |
Light |
| 11.24.2022 12:42 | cPanel Shared Hosting Maintenance Windows- Nov 11, 5:00 PM |
We are performing maintenance on our cPanel Shared Hosting platform. A short outage can be expected while the server reboots. |
Light |