https://www.cs.vassar.edu/ 2026-06-09T17:02:22+00:00 https://www.cs.vassar.edu/ https://www.cs.vassar.edu/_media/favicon.ico text/html 2015-08-26T20:52:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/backups?rev=1440622373&do=diff FIXME update, convert to wiki, add link to isohome Backup With Tar ---------- * Overview * Creating a tar file of your entire directory * Copying the file to another location * Tar Documentation ---------- Overview While I make regular backups of the home directories on the Computer Science Unix machines, there are times when you want to have your own copy of your account. There are several relatively painless ways to accomplish this task. I will describe one of them here. If you n… text/html 2010-10-29T19:16:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/inhouse/using_htaccess?rev=1288379766&do=diff Using htaccess for web pages Please note: htaccess is for pages served from OUTSIDE THE WIKI in users directories. The wiki has similar ability, but it is set up differently -Greg Web Access Restriction by user/password This can be used in many ways, the user and password are not related to our system users and passwords, so you can use anything you like, however, there is no mechanism for the web users to maintain or reset their htaccess password so it can become a maintenance nightmare qui… text/html 2009-10-14T17:24:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/isohome?rev=1255541099&do=diff Backup to CD/DVD ---------- * * * * * * ---------- <BOOKMARK:quick> The really short version of the instructions If you just want to do this without delay and can get to the CS lab... * Bring a blank CD or DVD to the lab * text/html 2010-12-06T15:30:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/kill_a_process?rev=1291649428&do=diff Monitoring and Killing Processes Any process you own you can kill (this is not a moral judgment, just a fact of life in Unix and Linux). Killing an offending process graphically If the machine itself is still responsive (but one or more windows perhaps aren't) you can try one of the Graphical Process Managers on our system.$$xfce4-taskmanager$$````````$$gnome-system-monitor$$```````` text/html 2009-08-13T17:38:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/gate_tips?rev=1250185129&do=diff Gate tips Help! I still get GATE 5.0 Beta, not GATE 5.0 When you run gate you should see that you are running GATE Developer 5.0 build 3244. If you are not, then to use the new version you need to do the following 2 steps: * Delete your existing user configuration file, do that with the command: ```````````````````` text/html 2015-08-26T21:24:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/apps/svn_use?rev=1440624278&do=diff SVN quick reference The following is modified from an email sent by Prof. Smith on the use of the command line svn program under linux here at CS To checkout (co) repository for first time * cd on your local machine to where you want your project working directory to be created```````````````````````````````` text/html 2020-07-04T21:02:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/vnc?rev=1593896566&do=diff Using VNC What is VNC? NOTE: VNC is deprecated. For all remote desktop access, we ask that you use X2Go (found here). VNC is a system for interacting with a computer display remotely, over a network. This technology was developed by AT&T Laboratories, and is now available for free over the internet (distributed under the GNU General Public License. Visit the text/html 2022-08-31T12:49:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/sshkeysmswindows?rev=1661950198&do=diff SSH Keys on Microsoft Windows using the PuTTY Utility SSH keys are what you will use to establish an encrypted connection over the network, e.g. the internet, between your system and a remote machine. The default type of key to generate is RSA which is good for most purposes. RSA is universally supported among SSH clients. Note that EdDSA performs much faster and provides the same level of security with significantly smaller keys. In general, though, for what you need to do, RSA encryption is … text/html 2025-06-27T18:51:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/priority?rev=1751050267&do=diff System Priorities Priorities of programs are something to be aware of. PS The first thing to do is to get to know your processes. The ps command lists out the processes you have running on the system. By using ps -l, an extended listing of your processes is provided. The fields of the most interest to this topic are the PID, NI, and COMMAND fields. The COMMAND field lists the name of the command that started your process. So, if you're looking for your runaway c++ program, a.out is the one yo… text/html 2011-09-22T17:43:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/java_system_tips?rev=1316713392&do=diff Java issues and tips Java remote method invocation problem Problem: When running a demo of Java's remote method invocation on our Ubuntu 9.04 based linux machines running java-6-openjdk the client could only attach to a server running on the same host.```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` text/html 2010-11-24T23:10:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/sysnews/acm_jar_applets?rev=1290640216&do=diff Using acm.jar The ACM Java Task Force (JTF) created an API framework for Java programs which is distributed in the file acm.jar. Programs using acm.jar may be compiled and executed from the command line, or within your favorite Java IDE (e.g., Netbeans, DrJava). It is also possible to run your JTF programs as an applet within a browser or via the appletviewer. ```````````````````````````````````` text/html 2025-06-27T18:49:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/browser_wont_start?rev=1751050146&do=diff Help, my browser won't load! Generally, if you click the browser icon and it doesn't do anything, or gives you an error that mentions profiles, there's probably a previous instance of the browser that didn't clean up after itself. The first thing to check is if you have the browser open on another workstation. If you're logged into two workstations and try to start a browser on both of them, it will cause an error because the application wants to ensure that there is only one copy of it running… text/html 2022-10-28T18:01:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/jetbrains?rev=1666980095&do=diff JetBrains IntelliJ License When you start or launch any JetBrains software installed on a lab, classroom or office computer managed by the Computer Science Department, the computer is configured to look for our local, JetBrains license server to request a license for that software. text/html 2025-06-27T18:46:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/frozen?rev=1751049974&do=diff Frozen Machine! If you have a process, a window, or a machine that seems to have “frozen” while you were working on it, became “stuck,” is not responding to the keyboard or mouse, or is spewing out garbage into a window here is what you can try. If the steps below don't work, please get more help! Either ask a coach, an instructor or find or write me. text/html 2015-08-27T14:16:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/emacs_tips?rev=1440684973&do=diff Emacs Tips Emacs Command Shorthand From the emacs built in tutorial Emacs commands generally involve the CONTROL key (sometimes labeled CTRL or CTL) or the META key (sometimes labeled EDIT or ALT). Rather than write that in full each time, we'll use the following abbreviations: C-<chr> means hold the CONTROL key while typing the character <chr> Thus, C-f would be: hold the CONTROL key and type f. M-<chr> means hold the META or EDIT or ALT key down while typing <chr>. … text/html 2015-08-27T14:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/apps/mono?rev=1440684806&do=diff Mono <quote Wikipedia>Mono is a free and open source project led by Xamarin (formerly by Novell and originally by Ximian) to create an Ecma standard compliant .NET Framework-compatible set of tools including, among others, a C# compiler and a Common Language Runtime.</quote> text/html 2018-08-24T18:16:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/use_and_abuse?rev=1535134614&do=diff From time to time issues of computer privacy, fair use, or appropriate use of the Computer Science Department computer facilities come up. Any discussion must start with an understanding of the campus regulations on computer use. Campus Computer Regulations text/html 2023-04-06T14:19:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/possible_issues_with_remote_webui?rev=1680790785&do=diff Possible Issues when using the Remote WebUI 1. Why do I get bumped off after 4 - 5 hours? There is a time limit on the connection because several people have forgotten to log out and left their user home account files open and tied to remote system. Therefore a timer will kick you off after four or five hours to close all of your applications and files for you so that your files are not corrupted. Save your work often! Close all of your applications and disconnect or logout when you are done o… text/html 2023-01-26T15:53:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/logging_out_of_a_desktop_or_remote_desktop?rev=1674748402&do=diff Logging out of the Computer Science Computers Leaving files open in editors such as pluma and emacs, or leaving applications running can lead to corrupt files and loss of your work because your files are not local to any computer. Your files are shared from a central server. Therefore, if you leave an application open on one computer and then go to another computer, you have several devices trying to access your files. Applications don’t like this. Firefox, for example, won’t allow you to star… text/html 2012-03-27T14:52:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/hall_of_shame?rev=1332859938&do=diff Hall of Shame (No names, just examples) Cracked passwords of real users The following passwords were cracked and are no longer being used on our system: * Baseball - Dictionary Word * change - Dictionary Word * ch3st3rf - Dictionary Word with simple substitution text/html 2020-07-04T20:59:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.cs.vassar.edu/help/general_linux/filecopy?rev=1593896345&do=diff Secure Shell on macOS, Unix, and Linux Installation Any modern Unix-like operating systems should come with secure shell client utilities already installed. This is true for macOS, Ubuntu, Fedora, Mandrake Linux, FreeBSD and many others. If, however, you need a ssh client, you can download one from the openssh website: