Your RPM GPG Key is missing.  You may receive this error, especially on new installations and when you try to install fresh RPM packages for the first time.  This means you will need to install one: PROBLEM
$ rpm -qp –qf i386 /Files/RHEL4-22/RedHat/RPMS/anaconda-runtime-[0-9]*
warning: /Files/RHEL4-22/RedHat/RPMS/anaconda-runtime-10.1.1.25-1.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e i386
$ rpm [...]

Sometime back I was wondering how I can get a screenshot in Linux.  I’ve created this workaround for myself to use from the shell not knowing about the GIMP screenshot capture/aquire function at the time:

Not a big post today.  Just a solution to a problem I ran into earlier.   This may appear self explanatory if you assume disk space issue, as in this case the error is actually not referring to mailbox size.
PROBLEM
Feb  8 04:02:06 lhs sendmail[4105]: l18924AB004105: low on space (SMTP-DAEMON needs 0 bytes + [...]

PERL REFERENCE / CHEAT SHEET
Handy, searchable Perl reference guide for both beginners and intermediate Perl developers.  This is something of a reference and a tutorial combined into one.  If you like, don’t forget to post a comment.
CONTENTS
Assignment Operators
Operators, Precedence, Example and Associativity
Numeric Literals
Bitwise Operator Result Table
String Literals
Variables
String Operations
Built In Literals
Control Blocks
Loop Flow Control Modifiers
Printing [...]

PROBLEM
You receive random errors failing to initialize your network card at boot time or during manual restart that look like the one below:
$ifup eth0
via-rhine device eth0 does not seem to be present, delaying initialization.
$
SOLUTION

FCKEditor 2.1 / 2.5 2.6.2 Recently I found myself looking for an editor for posts more powerfull then the standard built in editor that comes with WordPress.  To that end I came up on FCKEditor (NOTE: No, it’s not meant to be synonymous after the popular explative.) and so far it has [...]