Difference between revisions of "Notices"
 
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<!--  *************** BEGIN ACTIVE NOTICES **************************** -->
  
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== UNPLANNED CS SERVICE OUTAGES ==
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== {{red|CS IT STAFF AVAILABILITY}} ==
  
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<!--:None at this time.-->
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*  The CS IT Support staff operates out of 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. 
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* We are available M-F, 8:30 to 5pm, but there may be certain times we might be online only.
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*  Therefore, please remember to email [mailto:support@cs.jhu.edu support@cs.jhu.edu] for assistance.
 +
*  Also, please have [https://support.cs.jhu.edu/wiki/Zoom Zoom] available on your device(s), so that we can arrange to contact you using that method, as an alternative to in-person communication.
 +
* Steve DeBlasio, our accounts liaison, is providing a virtual version of his daily office hours for accounts, etc.  Email [mailto:support@cs.jhu.edu support@cs.jhu.edu] for details.
  
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===gradx experiencing slowness===
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<br><p>
  
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9/20/16 1:45pm  gradx is experiencing some slowdown issues.  We are investigating.  Please use gradz or one of the CS grad systems instead.
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<!--== {{red|JHU IT SERVICE OUTAGES AFFECTING CS IT SERVICES}} == -->
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<!--
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=== PLANNED ''JHU'' SERVICE OUTAGES ===
  
  
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=== UNPLANNED ''JHU'' SERVICE OUTAGES ===
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-->
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== {{red|CS IT SERVICE OUTAGES (Unplanned & Planned)}} ==
  
  
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<!--  '''WHAT:'''  The main CS website (''www.cs.jhu.edu'') is not working.
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=== UNPLANNED CS IT SERVICE OUTAGES ===
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'''WHEN:'''  Problems began at early on Tuesday, May 3, 2016.
 
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'''''STATUS:  There is a problem with the Whiting School of Engineering's web server, on which the CS web server depends.'''
 
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The Whiting School's IT department has been notified of the problem.  At this time we do not have an ETA for when the problem will be fixed.  -->
 
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<br>
 
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== PLANNED CS SERVICE OUTAGES ==
 
  
 
:None at this time.
 
:None at this time.
  
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<!--
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{{outage
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  |services=mail
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  |time=Wednesday, February 18, starting around 11:15 am
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  |summary=There is an issue with the mail server that we're investigating.  You might be unable to check or store mail messages until the problem is fixed.
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  |update=As of about 11:45 am, we believe we've fixed the problem.
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}}
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-->
 
<br>
 
<br>
  
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== CS COMPUTING LAB AVAILABILITY ==
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=== PLANNED CS IT SERVICE OUTAGES ===
  
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<!-- :None at this time. -->
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:'''WHAT:''' Major (but overnight) Network and WiFi outages planned for different floors of Malone Hall on March 23 through March 27...  CS IT Services will be affected...
  
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=== MH 122 (Ugrad Lab) ===
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:'''WHEN:''' See below for details on when each floor outage will be.  All starts the week of March 16...
  
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:'''DETAILS:''' JHU Networking is planning to upgrade their network equipment in Malone Hall and will be doing one floor each evening the week of March 23.  Note that the Ground Floor of Malone was already updated previously, so at this point, JHU is upgrading the 1st, 2nd, and 3rd floors, in addition to the main building network distribution system.
  
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:Open as usual.  <br>
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:Here is the schedule with additional notes:
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::1)  Upgrade '''Malone Hall Distribution'''  March 23, 11pm to March 24, 3am  - The wired and wireless clients '''for the whole building''' will be down during this change.  '''All''' CS IT services, including mail, all CS-hosted websites, and any system with a .cs.jhu.edu hostname will be '''un'''available. 
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:::'''NOTE to our G-29 Server Room tenants:'''  Any systems in the Malone G29 server room will also be '''un'''reachable during the switch upgrade, though they will continue running and should be reachable again once the upgrade is complete.
  
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::2) Upgrade '''1st''' floor switch March 24, 11pm to March 25, 3am  The wired and wireless clients for the '''Malone 1st floor''' will be down during this change.  CS IT services will only be '''un'''available to the 1st floor during this time.
  
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=== MH G-61 (Masters/Ugrad Lab)===
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::3) Upgrade '''2nd''' floor switch March 25, 11pm to March 26, 3am  The wired and wireless clients for the '''Malone 2nd floor''' will be down during this change.  CS IT services will only be '''un'''available to the 2nd floor during this time.
  
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:Open as usual.   <br>
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::4) Upgrade '''3rd''' floor switch March 26, 11pm to March 27, 3am  The wired and wireless clients for the '''Malone 3rd floor''' will be down during this change.  CS IT services will only be '''un'''available to the 3rd floor during this time.
  
 
<!--
 
<!--
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:'''WHAT:''' Major CS Grad/Research Net & Ugrad Net IT services outage to perform maintenance on a server...
  
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==== '''PLANNED CLOSURE''''' ====
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:'''WHEN:''' Tuesday, February 24, from 6am to 8am.
  
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:'''DETAILS:'''  We need to perform some maintenance on one of our servers.  This will take approximately 2 hours to complete. During this time, several our of Grad/Research Net and Ugrad Net IT services will be unavailable. Below is a list of the services affected...
  
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'''''WHERE:'''''  Malone Hall G-61, both the Masters and Ugrad sides of the lab.
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:'''CS IT Services That Will Not Be Available During The Service Outage:'''
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*    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 CS mail will not be available to Grad/Research Net users, but since CS Ugrads can send through the JHU mail server, CS Ugrads might still be able to send email during the services outage (just not from our lab computers or compute servers.)
  
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'''''WHEN:'''''  Monday, March 14 & Tuesday, March 15, from 6am to 12 Noon.
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*    IMAP, POP, and webmail (for both Grad/Research and Ugrad accounts) will be unavailable.
  
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'''''WHY:'''''  Network cable installation. The lab will be closed those two
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*    No locally-stored CS webpages will be available. The main CS website (run by WSE) may or may not remain accessible. If you have a personal or lab CS page that we maintain locally in the dept, those will be unavailable. The CS IT Support Wiki and its Notices page will remain available.
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    mornings as workers install additional network cable.
 
  
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=====NOTES:=====
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*    All CS Linux user accounts and home directories on both the Grad/Research and Ugrad Nets will be inaccessible during the service outage.
  
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* During the lab closure times, the masters and ugrad Linux computers in G-61 will continue to be available remotely, via SSH.
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*   ssh service to our Grad and Ugrad Linux clients (masters1 through masters16, ugrad1 through ugrad24, gradx, ugradx, gradz, and ugradz) will be unavailable.
  
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* Ugrad Lab, MH 122 will not be affected and will remain open during those times.
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*   Console (desktop) access at any of our Linux client systems will be unavailable.
  
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-->
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*    SMB (SAMBA) File Shares (the CS Office Staff and some others use these) will be unavailable.
  
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<!--
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*    MySQL service via the mysql.cs.jhu.edu server will be unavailable.
  
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If there are any unexpected complications during the configuration changes that will delay the restoration of services, we will update the CS IT Support Wiki's Notices page at: https://support.cs.jhu.edu/wiki/Notices
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-->
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<!--
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{{outage
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  |type=Planned outage
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  |time=Wednesday, January 14 and Thursday, January 15
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  |services=gradz and ugradz
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  |summary=We will need to shut down two of our [[:Category:Linux Clients|Linux clients]] for maintenance.  The two clients are gradz and ugradz.  They might be unavailable for as much as two days, depending on how long the maintenance takes.  Please use our other Linux clients during the maintenance window.}}
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-->
  
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**************************  MINOR OUTAGE TEMPLATE BEGIN  *******************************
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<!--
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==== CS Labs/Systems Will Be Unavailable ====
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:'''WHAT:''' Malone Hall MH 122 '''and''' Malone Hall G61, both the Masters and Ugrad sides of the lab, and ''all'' the lab Linux computers, will be closed to CS students due to an ACM Programming Contest.
  
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'''Wed, July 30, 9am through noon:'''  ''Entire Undergrad Net'' (clients and servers) will be down as we complete system maintenance and move some equipment to a different rack.
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:'''WHEN:'''  Starting Friday evening, November 7, 5pm '''through''' Saturday, November 8, 9pm.
  
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Additionally, the Ugrad Net web and mail service will be unavailable during that time.  (Incoming ugrad net mail should queue up on another of our mail servers during that time, until the ugrad mail server is back up and running and transfers the mail.)
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:'''DETAILS:'''
  
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**************************  MINOR OUTAGE TEMPLATE END  *******************************
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: Both the MH 122 '''and''' G61 Masters and Ugrad Labs will be used for an ACM Programming Contest and will therefore be '''''closed''''' to those not participating in the contest.
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-->
 
  
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<!--
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: Additionally, all of the labs' Linux computers (masters1 through masters16 and ugrad1 through ugrad24) will be unavailable during the time period referenced above.
  
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* During the lab closure times, compute servers, gradx.cs.jhu.edu, gradz.cs.jhu.edu, ugradx.cs.jhu.ed, and ugradz.cs.jhu.edu  '''''will continue to be available remotely''''', via SSH.
  
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******************** MAJOR OUTAGE TEMPLATE BEGIN ********************************
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* We have to take down the lab systems late that Friday afternoon.  At the end of the ACM contest that Saturday night, the coordinators of that contest will be turning our lab computer systems back on. Most should boot normally. But, if some do not, just trying using an alternate one in the lab.  We'll be back in the Monday afterwards and can check on any systems that didn't boot normally.  (And don't forget, as mentioned above our compute servers -- gradx, gradz, ugradx, ugradz -- will continue to be remotely available, even if the lab systems are not.)
  
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'''MAJOR''' motherboard repair of ''rtfm.cs.jhu.edu'', one of our main CS ''Grad/Research'' Net file system servers, will create up to (but hopefully, much shorter than) 6-hour planned downtime for the Grad/Research Network. Our hardware service/repair company will be on-site completing repairs.
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* The printers in MH 122 and MH G61 will remain online, but, please pick up your printouts outside of the contest hours.
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-->
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'''Outage will begin at 12am (midnight), Thursday, 8/22, and will last until 6am (or earlier) Thursday.'''
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<!--
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==== Scheduled Networking Outage on the Malone Ground Floor ====
  
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During that time, the following services will be ''unavailable'':
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:'''WHAT:''' WiFi and Ethernet connections will not be available on the ground floor of Malone Hall during an upcoming JHU-planned networking outage.
  
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* ''Email in or out on the Grad/Research Net will be disabled.''  (Connections to smtp.cs.jhu.edu and pop.cs.jhu.edu will fail during that time.  However, incoming mail to CS should queue at an alternative server.)
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:'''WHEN:'''  JHU's Planned Network Outage – Wednesday, August 27, 2025, from 8pm through midnight.
  
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* ''Email on the Undergrad Net will be disabled during this time'' (as CS Ugrad e-mail addresses are registered via a server on the CS Grad Net.)
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:'''DESCRIPTION:''' JHU is planning a network outage at Malone Hall to install new networking equipment.  The outage will start at 8:00 pm and is expected to last between two and four hours.  During the outage, the wireless access points on the ground floor will be offline, as will most of the Ethernet jacks. Please be prepared to not have any network connectivity on the Malone ground floor during this time.
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* ''DNS will only be available if you've configured your computer with a secondary DNS server.'' If you don't have a secondary server in your computer's DNS defined, please add 128.220.2.7 You may notice a delay in DNS name resolution when falling back to the secondary server.
 
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* ''Grad/Research Net user accounts/home directories will be inaccessible'' during the downtime.
 
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* ''Access to any of our Grad/Research Net linux clients (including gradx and masters1 through masters16, as well as Dr. Smith's pllab machines that we maintain) will be unavailable''
 
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* ''peregrine.cs.jhu.edu (our Solaris login server) will be unavailable''
 
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* ''Our mysql server, mysql.cs.jhu.edu, will be unavailable.''
 
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* ''Samba shares will be unavailable.''
 
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* ''Your Grad/Research Net web pages will be unavailable.''  (The webserver is expected to be serving minimal pages, mostly notices, during that time.)
 
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********************  MAJOR OUTAGE TEMPLATE END  ********************************
 
  
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:Ethernet connections in the Malone server room, G29, will not be affected by this outage.  Any servers in G29 should remain accessible.  The Linux clients and Ethernet jacks in room G61, which contains the ground floor masters and undergrad labs, will not be affected either.  (But any laptops brought into G61 during the outage probably won't be able to access the wireless network.)
 
-->
 
-->
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<!--
 
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==JHU-WIDE IT SERVICE OUTAGES==
 
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<br>
 
<br>
  
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'''8/24/16 3:30pm'''  UPDATE:  We are told that JHU has fixed their mail servers and that JHU mail is back in operation again.
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== {{red|CS COMPUTING LAB AVAILABILITY}} ==
  
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<!--  ***** NORMAL POSTING MH 122****** -->
  
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'''8/24/16 1:30pm''' JHU's central mail servers are experiencing an issue that is causing mail bouncebacks for people not on JHU Exchange sending to people on JHU Exchange.  An error might look like:
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:'''MH 122''' (CS Undergrad Lab/Collaboration room) is available for in-person access,
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:'''The reason for the problem: 5.1.2 - Bad destination host 'Multiple DNS'''
 
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:'''queries were attempted and failed: DNS Hard Error looking up'''
 
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:'''feint.johnshopkins.edu<http://feint.johnshopkins.edu/> (A): NXDomain'''
 
  
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JHU is looking into the problem at their end.    Note that although the CS email servers are working fine, those on CS sending to JHU Exchange users may experience the same issue as others outside of JHU Exchange sending to JHU Exchange.
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<!-- ****** NORMAL POSTING G61 ********** -->
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:'''MH G61''' (CS Masters/Ugrad Labs) is available for in-person access.
  
 
<br>
 
<br>
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-->
 
  
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<!-- ===Possible Email Bounces From Normally-Working Sites===
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== {{red|AUDIO/VISUAL (A/V) OUTAGES}} ==
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:None at this time.  
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'''8/8/16'''  We have been receiving reports of ''email bounces from people/organizations that normally work without problems.''  We think we know what is happening.  We recently discovered that one of our CS student accounts had been compromised and was being used to send spam.  Even though we disabled the account as soon as the compromise was discovered, several mail server reputation services had already classified us as a possible source of spam.  As a result of that classification, some organizations have decided to temporarily reject email from our mail server.  We can't predict ahead of time which organizations those are, since there are a variety of reputation services, and individual organizations differ in the ways they make use of reputation information.
 
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This problem will fix itself automatically over the next few days, as the reputation services take note of the fact that we have stopped sending spam.  There's no way to speed up this process, unfortunately.
 
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This sort of problem doesn't often happen to us. But when it does, it causes headaches like the unexpected bounce messages some people have received.  We will be implementing some new processes that we expect will allow us to react more quickly to situations like this, before they reach the point where other organizations stop accepting our mail.
 
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We will update this page once the reputation scores have returned to normal. -->
 
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<br>
 
  
 
[[Category:All]]
 
[[Category:All]]

Latest revision as of 17:40, 19 March 2026


CS IT STAFF AVAILABILITY

  • The CS IT Support staff operates out of 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 are 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.
  • 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

WHAT: Major (but overnight) Network and WiFi outages planned for different floors of Malone Hall on March 23 through March 27... CS IT Services will be affected...
WHEN: See below for details on when each floor outage will be. All starts the week of March 16...
DETAILS: JHU Networking is planning to upgrade their network equipment in Malone Hall and will be doing one floor each evening the week of March 23. Note that the Ground Floor of Malone was already updated previously, so at this point, JHU is upgrading the 1st, 2nd, and 3rd floors, in addition to the main building network distribution system.
Here is the schedule with additional notes:
1) Upgrade Malone Hall Distribution March 23, 11pm to March 24, 3am - The wired and wireless clients for the whole building will be down during this change. All CS IT services, including mail, all CS-hosted websites, and any system with a .cs.jhu.edu hostname will be unavailable.
NOTE to our G-29 Server Room tenants: Any systems in the Malone G29 server room will also be unreachable during the switch upgrade, though they will continue running and should be reachable again once the upgrade is complete.
2) Upgrade 1st floor switch March 24, 11pm to March 25, 3am The wired and wireless clients for the Malone 1st floor will be down during this change. CS IT services will only be unavailable to the 1st floor during this time.
3) Upgrade 2nd floor switch March 25, 11pm to March 26, 3am The wired and wireless clients for the Malone 2nd floor will be down during this change. CS IT services will only be unavailable to the 2nd floor during this time.
4) Upgrade 3rd floor switch March 26, 11pm to March 27, 3am The wired and wireless clients for the Malone 3rd floor will be down during this change. CS IT services will only be unavailable to the 3rd floor during this 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.