Main Page: Difference between revisions

From UMIACS
Jump to navigation Jump to search
No edit summary
No edit summary
 
(239 intermediate revisions by 30 users not shown)
Line 1: Line 1:
__NOTOC__
==Announcements==
==Anouncements==
Please see our [https://intranet.umiacs.umd.edu intranet] page for announcements.
<startFeed />
 
 
===UMIACS Linux Systems Reboot===
 
'''When:  Thursday 9/23 8pm - Friday 9/24 12am'''
 
Hi~
 
This past weekend a critical security vulnerability was revealed for Linux systems.  A patch is now available for this exploit, designated CVE-2010-3081.  To implement this fix we will need to reboot all affected Linux systems which will install a new, secure kernel version.  Due to the seriousness of this vulnerability, we need to apply this fix as soon as possible and have scheduled a restart of all affected systems this Thursday, 9/23/10 at 8:00PM.  We apologize for the limited notice but quick action is needed to ensure the security of our systems, users, and data.  UMIACS technical staff is able to identify any systems that may be compromised and we  have been diligently monitoring all UMIACS systems since the original announcement.
 
The specific version of Linux affected is Red Hat Enterprise Linux, Version 5.  Unfortunately, this list includes most of the Institute's clusters, web services, database services, computational nodes, and workstations.  If you are unsure whether one of the systems you use is affected, please refer to the complete list on our wiki here: https://wiki.umiacs.umd.edu/umiacs/index.php/LinuxRebootList-2010_09_21 .
 
Please send any questions or comments to [mailto:staff@umiacs.umd.edu staff@umiacs.umd.edu].
 
===UMIACS Web/FTP Filesystem migration===
 
'''When:  Tuesday 9/21 10pm - Wednesday 9/22 2am'''
 
We are going to be migrating the main UMIACS web and ftp file system to a new backend storage system which will require both the file systems to be read-only and then offline for a very short period.  There will only be a 15 minute window at the tail end of the maintenance window where we will not be serving web and ftp content.  No other services within UMIACS will be affected.
 
Please send any questions or comments to [mailto:staff@umiacs.umd.edu staff@umiacs.umd.edu].
 
===Comcast DNS Issues===
We are currently experiencing issues with Comcast home internet in PG county not correctly handling DNS resolution for UMIACS hostnames, that can seem to be affecting connectivity to UMIACS.
 
If you are having problems getting to UMIACS hosts you can use our name servers to resolve those specific host names then connect using the IP addresses you lookup. Our name servers are 128.8.120.19, 128.8.120.50, and 128.8.132.75 to use this information to get the ip address of the host somehost.umiacs.umd.edu you would use the command "nslookup somehost.umiacs.umd.edu 128.8.120.19", from a linux, windows or mac command prompt.
 
Unfortunately the problem seems to lie in an interaction of Comcast's name servers with those run by OIT, but we are looking into ways we can interact with those parties to get this issue resolved. 
 
===UMIACS Staff Jira===
We have upgraded our request tracker to [[Jira]].  Please email [mailto:staff@umiacs.umd.edu staff@umiacs.umd.edu] if you have questions or comments.
 
<endFeed />


==Technical Reference==
==Technical Reference==
; [[GettingStarted | Getting Started]]
: Broad introduction to UMIACS Accounts and services.
; [[CoreServices | Core Services]]
: Information about UMIACS service offerings including [[Email]], [[Data Storage]], [[Backups]], and our [[VPN]].
; [[Orders | Ordering Equipment]]
: Information on ordering equipment requests and best practices.
; [[LabFacilities | Lab Facilities]]
: Information on the various labs and centers within UMIACS.
; [[Publishing Data | Publishing Data]]
: Best practices when publishing data at UMIACS.
; [[HelpDesk | Getting help (UMIACS Help Desk)]]
: Information on UMIACS Support and how to contact us.


Welcome to UMIACS Wiki. This is the main place to find documentation and information about your account and  the technical services that UMIACS offers. If this is your first time please start here [[GettingStarted| Getting Started]].
==General Information==
* University of Maryland [http://it.umd.edu/aup Acceptable Use Policy (AUP)]
* [http://www.umd.edu/web-accessibility Web Accessibility]


We provide many  [[CoreServices|Core Services]] which include [[EMail]], [[Backups]] and [[VPN]].
Please note that login access to this wiki (edit privileges) is restricted to members of UMIACS Technical Staff. If there is something that you believe needs editing, please [[HelpDesk | contact staff]].
 
__NOTOC__
We have lots of specific [[LabFacilities|Lab Facilities]] that you may be interested in.
 
Please check here if you are interested in [[OrderingEquipment|Ordering Equipment]].

Latest revision as of 20:42, 15 October 2024

Announcements

Please see our intranet page for announcements.

Technical Reference

Getting Started
Broad introduction to UMIACS Accounts and services.
Core Services
Information about UMIACS service offerings including Email, Data Storage, Backups, and our VPN.
Ordering Equipment
Information on ordering equipment requests and best practices.
Lab Facilities
Information on the various labs and centers within UMIACS.
Publishing Data
Best practices when publishing data at UMIACS.
Getting help (UMIACS Help Desk)
Information on UMIACS Support and how to contact us.

General Information

Please note that login access to this wiki (edit privileges) is restricted to members of UMIACS Technical Staff. If there is something that you believe needs editing, please contact staff.

Retrieved from "https://wiki.umiacs.umd.edu/umiacs/index.php?title=Main_Page&oldid=12088"