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Sendmail: send-only when local system has no domain name

Posted 10-13-2009 at 02:04 PM by catkin
Updated 10-18-2009 at 01:31 PM by catkin

Hello

EDIT: this works but causes sendmail to pause for ~1 minute when it can't find its own FQDN; this slows boot (if sendmail is started at boot and not backgrounded) and would be un-workable on a busy mail server.

Here's how to configure sendmail to send mails when the computer is configured with a hostname but no domain name. It may be of use, for example, if you want to mail system exception reports and do not want to configure the computer as being part of a...
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Old

Slackware: installing from HDD using CD .iso files

Posted 10-06-2009 at 06:26 AM by catkin

Hello

Here's a procedure to install Slackware 13.0 starting with the CD .iso files on a Linux system using GRUB. It is a modified form of the procedure for installing from a DVD .iso file given here.

It was developed and tested on an ubuntu 8.04 system following a pilot Slackware installation in a VirtualBox virtual machine but nothing in the procedure is specific to that environment.

A file system is populated with the files a) required for GRUB...
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Old

mrxvt 0.5.4 notes

Posted 09-28-2009 at 04:56 PM by catkin
Updated 09-28-2009 at 04:59 PM by catkin (Corrected Xfce version)

Hello

The attachment is my personal blow-by-blow log of installing mrxvt 0.5.4 on Slackware 13.0 with Xfce 4.4. It includes some useful links and details of configuring:
  • Xfce panel launcher.
  • Xfce menu entry.
  • Initial window size.
  • Foreground and background colours.
  • Profiles.
  • Fonts.
  • End and Home keys.
  • Menus (very basic and sub-menus not working).
  • Copy and paste to clipboard by Shift+Ctrl+C and Shift+Ctrl+V.
  • Setting window, tab and "Task list" titles to
...
Attached Images
File Type: pdf mrxvt 0.5.4 notes.pdf (223.6 KB, 757 views)
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Old

mrxvt: how to configure clipboard copy and paste

Posted 09-27-2009 at 04:33 PM by catkin

Clipboard paste by Ctrl+Shift+V
Add this line to ~/.mrxvt
Code:
Mrxvt.macro.Ctrl+Shift+V: Paste CLIPBOARD
Clipboard copy by Ctrl+Shift+C
  1. Install xclip.
  2. Add this line to ~/.mrxvt
    Code:
    Mrxvt.macro.Ctrl+Shift+C: Exec !/usr/bin/xclip -o | /usr/bin/xclip -selection clipboard

Notes
  • Tested on Slackware 13.0 with mrxvt 0.5.4 and xclip 0.12.
  • Ctrl+Shift+V is configured by default to "Paste X selection into active tab" but there is no loss of functionality;
...
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Old

Xfce: how to set up changing backdrops (wallpapers)

Posted 08-30-2009 at 01:03 PM by catkin

Hello

Coming from Gnome to the lighter weight Xfce I was surprised to discover that no extra packages are required to set up changing backdrops (wallpapers) on Xfce.

Essentially the technique is to create a list of graphic files to be used as backdrops in file ~/.config/xfce4/desktop/backdrops.list and then to run /usr/bin/xfdesktop -reload at intervals. xfdesktop chooses a random backdrop from backdrops.list each time it starts (at session initialisation, normally...
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