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Archive for the 'NIX Posts' Category

RedHat Fedora: Fedora Core 2 to Fedora Core 3 upgrade.

Now that you are at Fedora Core 2 you can jump to Fedora Core 3 as the next step.  For those of you who have been using Fedora Core 2 and have not read Fedora Core 1 to Fedora Core 2 Upgrade please take a look.  The procedures here are identical except for some [...]

RedHat Fedora: Fedora Core 1 to Fedora Core 2 Upgrade

For those of you still stuck in the old archeic version of Fedora Core 4 or older, perhaps because you have lot’s of files stored and documents and do not wish to reinstall the entire OS: it may be time to consider an upgrade.  Thankfully there is a way to do this from Fedora [...]

MailScanner: Receiving duplicate e-mails in your inbox.

If you have MailScanner running in the background, one issue you can run into is duplicate emails.  Try the below to see if it fixes your issue:
PROBLEM
Receiving duplicate or repeating e-mails in your inbox.
SOLUTION

Sound Problems: Error while initializing the sound driver

Linux OS does a superb job of handling sound.  Since early on it will even be configured out of the box.  Unfortunately, keeping it that way is an entirely separate matter.  Especially when going through multiple upgrades or installing other packages possibly even applications that may alter your sound behaviour strange things may start [...]

Linux RPM GPG Key: V3 DSA signature: NOKEY, key ID db42a60e

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 –rebuilddb [...]

Screenshot: How to get a screenshot in linux using command line tools: xwininfo, convert.

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:

Sendmail: low on space / SYSERR(root): returntosender: cannot select queue for root

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 + 100 [...]

Linux Networking: device eth0 does not seem to be present, delaying initialization.

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

Linux Pixma Printer Configuration: Canon Pixma iP4000 / iP4100

INTRO
Printing, can become one of those nagging things if you don't have it going yet.  This is especially true on Linux.  Though it's 2009 at this time, Linux is still lagging in printer support though that margin between Linux and Windows is shrinking rapidly. 
Having been already logged into my Linux partition I thought [...]

MySQL DB backup.

One of the things you definitely want to take a backup of on a regular basis, especially if you are a WebAdmin/WebMaster is that of your MySQL database for things such as a forum, blog or anything else you have that may use MySQL on your site. For this you'll need telnet/ssh login to [...]


     
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