Computer Science | Vassar College https://www.cs.vassar.edu/ 2026-04-12T10:02:53+00:00 Computer Science | Vassar College https://www.cs.vassar.edu/ https://www.cs.vassar.edu/_media/favicon.ico text/html 2015-08-26T21:09:31+00:00 Anonymous (anonymous@undisclosed.example.com) logs https://www.cs.vassar.edu/old_pages/logs?rev=1440623371&do=diff System Status Workstations Problem, Tues 12/17 System CS129 in OLB104 had a power supply issue. A ticket has been opened with user services. --- Rob Casinghino 2013/12/17 15:59 Workstations Update, Tues 9/17 I have done a non-critical update to our automated filesystem mounting for home directories. These will time-out after 90 minutes (beyond the typical class/lab sessions) to clear up resources on systems. While the connections are still active and in use, there will be no issues. If… text/html 2015-08-27T14:13:27+00:00 Anonymous (anonymous@undisclosed.example.com) 2013_winter_updates https://www.cs.vassar.edu/old_pages/status/2013_winter_updates?rev=1440684807&do=diff 2013 Winter Updates Welcome back. There has been some good quiet time in January which works well for pushing out updates. All of the workstations remain on Ubuntu 12.04.1, but several components have been updated. So that you are aware here are the bigger updates to have occurred. text/html 2020-01-30T19:31:41+00:00 Anonymous (anonymous@undisclosed.example.com) tips_for_instructors https://www.cs.vassar.edu/old_pages/tips_for_instructors?rev=1580412701&do=diff System Tips for CS Instructors Creating Dropboxes Before your students can use the submit### script with your course the following prerequisites must be met: * A course account must exist. * You need access to the course account. * Your students each need an account on our system. text/html 2010-08-31T20:47:29+00:00 Anonymous (anonymous@undisclosed.example.com) recently_installed_software https://www.cs.vassar.edu/old_pages/recently_installed_software?rev=1283287649&do=diff Recently Installed Software Linux Labs and Desktops * Google-Chrome yes, chrome is available on the CS system, however, there are a few hoops to jump through. For information and instructions on running google-chrome from within your CS account see: ```````````````````````````````````````````````````` text/html 2012-12-01T17:30:48+00:00 Anonymous (anonymous@undisclosed.example.com) 2012_workstations https://www.cs.vassar.edu/old_pages/status/2012_workstations?rev=1354383048&do=diff 2012 Workstation Upgrades [LightDM screenshot ]Welcome back. Plenty of changes have occurred to network this summer, here is a summary. The new workstations in the Asprey and Intro labs have quad-core Intel i7 2600 CPUs running at 3.4 GHz with 8 GB of RAM. The new workstations in the 105 classroom have dual-core Intel Atom D2700 chips runnings at 2.13 text/html 2011-04-05T02:38:32+00:00 Anonymous (anonymous@undisclosed.example.com) resolution https://www.cs.vassar.edu/old_pages/vnc/resolution?rev=1301971112&do=diff VNC Client Display Resolution Depeding on your VNC use, you may want to have a larger or smaller display than the default or a different number of colors. This often happens if you want to run the display full-screen or want to speed things up by reducing the amount of information moving over your network connection by choosing a smaller color set or resolution. Our VNC server allows you to choose a resolution and color depth by connecting to different ports. The instructions suggest you connec… text/html 2011-02-09T16:47:28+00:00 Anonymous (anonymous@undisclosed.example.com) printing_tips https://www.cs.vassar.edu/old_pages/printing_tips?rev=1297270048&do=diff Printing Tips Printer Name Changes and your .bashrc If you are having problems with command line printing it may be because your .bashrc is not using the correct printer name. Have a look at your .bashrc file. Near the top there are some lines that set your default printer. If they don't look like the lines below, then cut out everything in your .bashrc from &&```````````` text/html 2014-02-02T09:05:01+00:00 Anonymous (anonymous@undisclosed.example.com) technews https://www.cs.vassar.edu/old_pages/technews?rev=1391331901&do=diff <html> <head> <title>current acm technews </title> </head> <body> <small> <ul > <li><a href=“<http://technews.acm.org/#703794>”>Storage System for 'Big Data' Dramatically Speeds Access to Information</a></li> <li><a href=“<http://technews.acm.org/#703802>”>Researchers Implement HPC-First Cloud Approach</a></li> text/html 2012-11-12T16:27:06+00:00 Anonymous (anonymous@undisclosed.example.com) 2012-11-12_mote_migration https://www.cs.vassar.edu/old_pages/status/2012-11-12_mote_migration?rev=1352737626&do=diff 2012-11-12 Mote Migration The new remote access server is finally ready for general usage. This means everyone will have remote access to a system that has all the same software and settings as a department workstation. Fire up Racket and do your CMPU 101 homework, submit your CMPU 203 homework assignment, or just open up IDLE to work on your NLTK work, whatever you need. text/html 2010-05-04T13:36:34+00:00 Anonymous (anonymous@undisclosed.example.com) speed_tips https://www.cs.vassar.edu/old_pages/vnc/speed_tips?rev=1272980194&do=diff Improving VNC Performance This page is a work in progress, use the information here if it helps, but do not consider it in any way authoritative. * -- Greg Priest-Dorman 2010/05/04 09:36 Why is my session so slow? VNC is sending the image of your screen over the network between the server (here at CS) and your client (the machine where you are working). Depending on the network speed, the load on the server, the speed of your machine and the protocols vnc is trying to follow, the speed of … text/html 2011-02-21T11:49:35+00:00 Anonymous (anonymous@undisclosed.example.com) iceweasel_thinks_it_is_running https://www.cs.vassar.edu/old_pages/iceweasel_thinks_it_is_running?rev=1298288975&do=diff Firefox or Chromium thinks it's already running Firefox Problem: firefox will not start and the message you get is something like this one: firefox is already running but not responding. To open a new window you must first close the existing firefox process or restart your system```````` text/html 2013-02-28T21:20:41+00:00 Anonymous (anonymous@undisclosed.example.com) kiosk https://www.cs.vassar.edu/old_pages/nodir/kiosk?rev=1362086441&do=diff <html><script type=“text/javascript”><![CDATA[><!]]></script></html> <html><style type=“text/css”>#clock {font-family: 'Lucida Sans Console', sans-serif; font-size: 30px; white-space: nowrap; font-weight: bold; text-decoration: none;}</style></html>```` text/html 2012-07-30T18:55:47+00:00 Anonymous (anonymous@undisclosed.example.com) 2012-08-04_shutdown https://www.cs.vassar.edu/old_pages/status/2012-08-04_shutdown?rev=1343674547&do=diff Summer 2012 Power Shutdown On Saturday, August 4th Buildings & Grounds will be performing maintenance and a safety review of electrical equipment on campus. This outage will affect power to Old Laundry Building as well as disable our network access and air conditioning. Because of this all services will be shutdown Friday night at 8:00 pm. Services are expected to be turned on again around 8:00 pm Saturday night, assuming that electricity, network connections and air conditioning are all availa… text/html 2008-05-07T11:29:54+00:00 Anonymous (anonymous@undisclosed.example.com) 2008-02-05_services_restored_backups_complete https://www.cs.vassar.edu/old_pages/status/2008-02-05_services_restored_backups_complete?rev=1210159794&do=diff 2008-02-05 Services Restored, Backups complete Tuesday, February 5, 2008 at 10:00am there was a brief interruption to some of the CS servers as we produced a bare metal backup. The servers that were unavailable were: * Our wiki server (this includes all wikis hosted at CS) text/html 2009-03-02T21:18:59+00:00 Anonymous (anonymous@undisclosed.example.com) ssl_cert_issue_explanation https://www.cs.vassar.edu/old_pages/ssl_cert_issue_explanation?rev=1236028739&do=diff SSL Site Certification We run two apache2 servers at this site. These two instances of apache2 serve multiple wikis and web sites. They are located in the Computer Science Department of Vassar College. As a result, they all get the same site certificate. In some cases that works just fine. But in some cases your browser will complain about not being sure if it should trust the certificate or not being able to verify the certificate. text/html 2011-04-01T15:28:37+00:00 Anonymous (anonymous@undisclosed.example.com) update-alternatives https://www.cs.vassar.edu/old_pages/tips/update-alternatives?rev=1301671717&do=diff update-alternatives: error In the event that an execution of “apt-get install” terminates following an error of the following type: (Terminal output for attempted set-up of sun-java6-plugin while /usr/lib/mozilla/plugins/libjavaplugin.so is being managed by mozilla-javaplugin.so~): text/html 2008-05-02T22:19:05+00:00 Anonymous (anonymous@undisclosed.example.com) site_search_options https://www.cs.vassar.edu/old_pages/site_search_options?rev=1209766745&do=diff Searching the CS websites We actually have several publicly viewable websites here at CS. There is the primary site and in addition several projects have their own servers. To further muddle things, we have a content management system, conventional web pages and cgi pages. text/html 2015-08-26T21:04:09+00:00 Anonymous (anonymous@undisclosed.example.com) osx https://www.cs.vassar.edu/old_pages/vnc/osx?rev=1440623049&do=diff Using VNC on Mac OS X Setup Download and install a secure shell client As you may have heard, the Mac OS X operating system is built off of a version of Unix, FreeBSD. You'll be happy to hear that this means you already have a secure shell client installed, the Unix native ssh. You will find it from the Terminal - more on that later. text/html 2015-08-26T21:04:09+00:00 Anonymous (anonymous@undisclosed.example.com) windows https://www.cs.vassar.edu/old_pages/vnc/windows?rev=1440623049&do=diff Using VNC on Windows Setup Setting up the programs to connect to a VNC server is not too difficult. You will, however, need to download two programs: a SSH client and a VNC client. The SSH client will make a secure connection between your computer and the VNC server and the VNC client will use this connection to draw a display on your screen. text/html 2008-05-07T11:26:57+00:00 Anonymous (anonymous@undisclosed.example.com) 2008-03-27_unscheduled_reboot_of_remote_access_server https://www.cs.vassar.edu/old_pages/status/2008-03-27_unscheduled_reboot_of_remote_access_server?rev=1210159617&do=diff 2008-03-27 Unscheduled Reboot of remote access server I had to reboot our remote access ssh server at 4:10PM EST today. I will be monitoring it a little more closely. Sorry for the hassle - Greg text/html 2008-05-07T11:25:05+00:00 Anonymous (anonymous@undisclosed.example.com) 2008-04-24_printer_problems_resolved https://www.cs.vassar.edu/old_pages/status/2008-04-24_printer_problems_resolved?rev=1210159505&do=diff 2008-04-24 Printer Problems Resolved Both lab printers, asprey and loaner are back up and fully operational. Thanks to a visit from NetEffects (our printer repair folks) I can report that as of 11:20 am, asprey is now working. (Loner has been working since yesterday.) text/html 2012-02-25T00:44:11+00:00 Anonymous (anonymous@undisclosed.example.com) kiosk2 https://www.cs.vassar.edu/old_pages/nodir/kiosk2?rev=1330130651&do=diff CS Kiosk Keyboard and Mouse Commands /!PLEASE NOTE: The kiosk browser has no back button! !/ ``Alt``+``F1`` Launch gedit ``Alt``+``F2`` Reopen default tabs ``Alt``+``F4`` Logout ``middle mouse button`` Open link in new tab Links * CMPU 101 Computer Science I * CMPU 145 Foundations of Computer Science text/html 2008-10-24T17:56:03+00:00 Anonymous (anonymous@undisclosed.example.com) xournal_tips https://www.cs.vassar.edu/old_pages/xournal_tips?rev=1224870963&do=diff Xournal Tips Xournal is a Pen Journal that also allows you to add annotations to PDF files and/or capture and import arbitrary windows on the current screen to use them in xournal. xournal's sourceforge site Documentation for xournal A few common commands and settings INVOKE XOURNAL FROM THE GUI```````````````````````````` text/html 2010-02-09T15:43:14+00:00 Anonymous (anonymous@undisclosed.example.com) graphs https://www.cs.vassar.edu/old_pages/status/graphs?rev=1265730194&do=diff System Monitoring The following locations are only accessible from an address in the CS department. If you need or want remote access to them, come talk to me about tunneling. MuninOverview Summaries Firewall Connectionscs bandwidth Mail amavis-stats mailgraph --- Greg Priest-Dorman 2009/02/18 11:32 text/html 2008-05-07T11:34:27+00:00 Anonymous (anonymous@undisclosed.example.com) 2008-01-28_password_problem_resolved https://www.cs.vassar.edu/old_pages/status/2008-01-28_password_problem_resolved?rev=1210160067&do=diff 2008-01-28 Password Problem Resolved The problem we had in yesterday’s lab (Monday Jan. 28) has been resolved. The problem was that one of the server maps needed to be manually rebuilt after changes made to our system. The other maps are all dealt with in an automated fashion so I did not notice at first that one of them needed to be built manually.  It is all fixed now. -Greg text/html 2008-05-07T11:21:39+00:00 Anonymous (anonymous@undisclosed.example.com) 2008-04-16_mac_logins https://www.cs.vassar.edu/old_pages/status/2008-04-16_mac_logins?rev=1210159299&do=diff 2008-04-16 Mac login The osX Macs in the lab now use your CS username and password for login. They do not mount your Linux home space. User space on the Mac’s is not persistent. Every time you log in your directory is recreated from scratch. text/html 2016-01-24T19:47:41+00:00 Anonymous (anonymous@undisclosed.example.com) schedule https://www.cs.vassar.edu/old_pages/schedule?rev=1453664861&do=diff cmpu 240 Schedule Approximate schedule, subject to change. You are responsible for keeping yourself informed of the schedule and any changes that may occur over time. The assigned readings should, ideally, be read before the corresponding class. You are responsible for keeping up with the reading and for all material covered in class. I text/html 2010-02-17T18:32:19+00:00 Anonymous (anonymous@undisclosed.example.com) software_for_your_machine https://www.cs.vassar.edu/old_pages/software_for_your_machine?rev=1266431539&do=diff Software Version and Download Information Links to the same version of the software we are using in various courses. In most cases, once at the site, you will need to select your operating system and architecture, this is sometimes called your platform text/html 2012-11-12T15:29:47+00:00 Anonymous (anonymous@undisclosed.example.com) linux https://www.cs.vassar.edu/old_pages/vnc/linux?rev=1352734187&do=diff Using VNC on Linux Unlike many other operating systems, Linux uses an X server for graphical display, which allows network redirection. This me ans that you can easily have a secure remote display without using VNC by tunneling through ssh using 'ssh -X'. None the les s, if for some reason you would still like to use VNC, this page describes the process for getting it to work.