======Overview====== gnu.offbyone.lan is a LAIR pod X network resource, an attempt to replace the flakey wildebeast. ^ hostname ^ RAM ^ disk ^ swap ^ OS ^ Kernel ^ | wildebai.offbyone.lan | 512MB | 4GB (/) | 256MB | Debian 6.0 "Squeeze" (AMD64) | 2.6.32-5-xen-amd64 | | antelope.offbyone.lan | 512MB | 4GB (/) | 256MB | ::: | ::: | | gnu.offbyone.lan | 512MB | 4GB (/) | 256MB | ::: | ::: | | wildgoat.offbyone.lan | 512MB | 4GB (/) | 256MB | ::: | ::: | ======News====== * 02/05/2010 - gnu.offbyone.lan created. * 02/07/2010 - wildebai, antelope, and wildgoat created (duplicates of gnu) * 02/11/2011 - gnu.offbyone.lan recreating running Debian squeeze. * 02/19/2011 - all wildebeest herd are now squeeze-based VMs (duplicates of gnu) ======TODO====== * Lots to do * finish setting up X config (Xresources) * connect with Xnest * set up user menu ======Network Configuration====== ^ Machine ^ Interface ^ IP Address ^ MAC Address ^ | antelope.offbyone.lan | eth0 | 10.80.2.30 | 00:16:3e:2e:d0:1e | | wildgoat.offbyone.lan | eth0 | 10.80.2.31 | 00:16:3e:2e:d0:1f | | gnu.offbyone.lan | eth0 | 10.80.2.32 | 00:16:3e:2e:d0:20 | | wildebai.offbyone.lan | eth0 | 10.80.2.33 | 00:16:3e:2e:d0:21 | ======Packages====== The following packages have been installed on gnu: * lair-std lair-vm lair-nfs lair-ldap lair-autofs lair-mail lair-backup * xpdf xterm rxvt-unicode build-essential dump fluxbox iceweasel imagemagick * oneko xbase-clients lyx openoffice.org-calc openoffice.org-writer * xdm xfonts-utils xfonts-scalable xfonts-encodings xfonts-75dpi xfonts-100dpi * xautomation xpaint xscreensaver xwit x11vnc tightvncserver a2ps gs mpage * recode enscript xvnc4viewer openoffice.org-writer2latex chromium-browser ======Xen Configuration====== gnu is a Xen virtual machine. Pertinent configuration information follows: =====Creation===== gnu.offbyone.lan recreated on sokraits on 02/11/2011: sokraits:~$ sudo xen-create-image --hostname=gnu --mac 00:16:3E:2E:d0:20 --role=udev =====Configuration===== The Xen config file for this VM is as follows: ########################################################################## # LAIR Xen VM configuration file (gnu.offbyone.lan) ########################################################################## ################################################# # Kernel + memory size # bootloader = '/usr/lib/xen-default/bin/pygrub' vcpus = '2' memory = '512' ################################################# # Disk device(s). # root = '/dev/xvda1 ro' disk = [ 'file:/xen/images/gnu.disk,xvda1,w', 'file:/xen/images/gnu.swap,xvda2,w' ] ################################################# # Hostname # name = 'gnu' ################################################# # Networking # dhcp = 'dhcp' vif = [ 'mac=00:16:3E:2E:d0:20' ] ################################################# # Behaviour # on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' ======Invalid Data below====== The information that follows is a combination of invalid data-- ie it does not pertain to the wildebeest machines, or is in need of updating (ie the xdm stuff). =====initrd===== In /root/initrd, it looks like we have to make the following change: server=10.80.2.3 # nfs serves the client image via nfs As it was set to wildebeast--- so after all that effort, the initrd the clients pulled down pointed them back at wildebeast. ====building the gnu initrd==== Run /root/doinitrd.sh This will recreate it, and copy it into /export/tftpboot, allowing for clients to utilize it. =====X config bits===== In /export/client/etc/rc.local on gnu, there's a line nearly at the end of this file that needs to be changed: FLAKEID="`ifconfig eth0|grep 'inet addr'|cut -d':' -f2|cut -d' ' -f1|cut -d'.' -f4`" XHOSTID="`echo $(($FLAKEID % 4))`" if [ "$XHOSTID" -eq 0 ]; then XRESHOST="wildebai" elif [ "$XHOSTID" -eq 1 ]; then XRESHOST="antelope" elif [ "$XHOSTID" -eq 2 ]; then XRESHOST="gnu" else XRESHOST="wildgoat" fi X -ac -query ${XRESHOST}.offbyone.lan :0 vt7 & As it was set to wildebeast. ====xdm config==== All these are in /etc/X11/xdm/ on gnu.. ===xdm-config=== In /etc/X11/xdm/xdm-config, the very last line in the file needs to be commented out (! is the comment character here), so: DisplayManager.requestPort: 0 Needs to become: !DisplayManager.requestPort: 0 ===Xaccess=== In /etc/X11/xdm/Xaccess, have a line to uncomment: * #any host can get a login window ===Xservers=== In /etc/X11/xdm/Xservers, we need to comment out everything... in our setup, we don't run an X server locally (on gnu), the clients run their own X servers (ie on the flakes), so this file is empty. ===Xsetup=== In /etc/X11/xdm/Xsetup, establishing some polish (background and power saving): xset +dpms dpms 600 0 0 #xsetroot -solid rgb:8/8/8 xsetroot -solid black ===Xresources=== The file /etc/X11/xdm/Xresources is where the bulk of the xdm appearance customization takes place. Here it is (obviously subject to change as new tweaks make their way into it): xlogin*login.translations: #override \ CtrlR: abort-display()\n\ F1: set-session-argument(failsafe) finish-field()\n\ Delete: delete-character()\n\ Left: move-backward-character()\n\ Right: move-forward-character()\n\ Home: move-to-begining()\n\ End: move-to-end()\n\ CtrlKP_Enter: set-session-argument(failsafe) finish-field()\n\ KP_Enter: set-session-argument() finish-field()\n\ CtrlReturn: set-session-argument(failsafe) finish-field()\n\ Return: set-session-argument() finish-field() xlogin*greeting: Classroom Linux Terminal (CLIENTHOST) xlogin*namePrompt: Lab46 Login:\040 xlogin*fail: Login incorrect (Please use your Lab46 login) #if WIDTH >= 1024 xlogin*greetFont: -adobe-helvetica-bold-o-normal--25-180-100-100-p-138-iso8859-1 xlogin*font: -adobe-helvetica-medium-r-normal--20-140-100-100-p-100-iso8859-1 xlogin*promptFont: -adobe-helvetica-bold-r-normal--20-140-100-100-p-105-iso8859-1 login*failFont: -adobe-helvetica-bold-r-normal--20-140-100-100-p-105-iso8859-1 #if PLANES >= 8 xlogin*logoFileName: /usr/share/X11/xdm/pixmaps/lair.xpm #else xlogin*logoFileName: /usr/share/X11/xdm/pixmaps/debianbw.xpm #endif #else xlogin*greetFont: -adobe-helvetica-bold-o-normal--14-140-75-75-p-82-iso8859-1 xlogin*font: -adobe-helvetica-medium-r-normal--12-120-75-75-p-67-iso8859-1 xlogin*promptFont: -adobe-helvetica-bold-r-normal--12-120-75-75-p-70-iso8859-1 xlogin*failFont: -adobe-helvetica-bold-r-normal--12-120-75-75-p-70-iso8859-1 #endif #ifdef COLOR xlogin*borderWidth: 1 xlogin*frameWidth: 5 xlogin*innerFramesWidth: 2 xlogin*shdColor: grey30 xlogin*hiColor: grey90 xlogin*background: grey !xlogin*foreground: darkgreen xlogin*greetColor: Blue3 xlogin*failColor: red *Foreground: black *Background: #fffff0 #else xlogin*borderWidth: 3 xlogin*frameWidth: 0 xlogin*innerFramesWidth: 1 xlogin*shdColor: black xlogin*hiColor: black #endif xlogin*useShape: true xlogin*logoPadding: 10 XConsole.text.geometry: 480x130 XConsole.verbose: true XConsole*iconic: true XConsole*font: fixed Chooser*geometry: 700x500+300+200 Chooser*allowShellResize: false Chooser*viewport.forceBars: true Chooser*label.font: *-new century schoolbook-bold-i-normal-*-240-* Chooser*label.label: XDMCP Host Menu from CLIENTHOST Chooser*list.font: -*-*-medium-r-normal-*-*-230-*-*-c-*-iso8859-1 Chooser*Command.font: *-new century schoolbook-bold-r-normal-*-180-* Note the existence of the lair.xpm file in /usr/share/X11/xdm/pixmaps, this needs to be put there (as I originally put it there on wildebeast). =====Printing===== gnu:~$ wget http://pdq.sourceforge.net/ftp/pdq-2.2.1.tgz ... gnu:~$ tar -zxf pdq-2.2.1.tgz gnu:~$ cd pdq-2.2.1 gnu:~/pdq-2.2.1$ ./configure ... checking for glib-config... /usr/bin/glib-config checking for GLIB - version >= 1.2.0... yes checking for gtk-config... /usr/bin/gtk-config checking for GTK - version >= 1.2.0... yes updating cache ./config.cache creating ./config.status creating Makefile creating src/Makefile creating lpd/Makefile creating doc/Makefile creating doc/pdq.1 creating doc/printrc.5 creating doc/xpdq.1 creating etc/Makefile creating etc/printrc.example Setting pdq resource directory to /etc/pdq Setting global pdq configuration file to /etc/pdq/printrc Now do % make # make install # cp /etc/pdq/printrc.example /etc/pdq/printrc gnu:~/pdq-2.2.1$ make ... gnu:~/pdq-2.2.1$ sudo make install ... gnu:~/pdq-2.2.1$ =====References===== * [[http://www.faqs.org/docs/Linux-mini/XDM-Xterm.html|XDM Xterm Mini-HOWTO]]