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Slow DNS lookups

Posted 11-16-2012 at 05:11 PM by serafean

Since quite some time I had been experiencing slow DNS lookups on some linux boxes. Today I finally got around to fixing it.
Symptoms : KDE fails to load google/wikipedia sometimes. firefox too, less often.

ping was the main tool in this case.
What I found was that
Code:
ping www.google.com
got an IP to ping very fast, however before anything appeared onscreen, it took up to 5 seconds. Pinging the IP address however returned immediately.
On a hunch, I tried disabling...
Member
Posted in Random fixes
Views 473 Comments 0 serafean is offline
Old

The unix philosophy is not strong in this one.

Posted 11-16-2012 at 01:03 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

I took my RHCSA test today (non-official pre-test). I finished all ~20 objectives in 30 minutes, minus one objective regarding quotas. Hrmmm...can't seem to recall the quota init command (and I've never really used Linux quotas before...this may get interesting). No worries, man -k to the rescue!

man -k quota

Well, ok, there are the commands for managing quotas, checking quotas, reporting on quotas, etc...but no "set up quotas". See, when I try to run...
Member
Posted in Uncategorized
Views 411 Comments 0 rocket357 is offline
Old

How I would like to use a desktop switcher

Posted 11-12-2012 at 07:01 PM by Skaperen
Updated 11-14-2012 at 03:51 PM by Skaperen

I currently use the compiz desktop switcher. It's also what is known as a "compositor", but I really don't know what all the functions are that it needs to perform. Clearly among them is switching desktops. So I guess it places windows from some sets of windows (and other GUI objects) on to and off of the screen as needed.

How compiz is working is that is displays some effect on the screen to show how you are doing switching. Some people like the cube effect where when...
Senior Member
Posted in Uncategorized
Views 531 Comments 0 Skaperen is offline
Old

UFEI Secure Boot: An Understandable Explanation

Posted 11-12-2012 at 05:13 PM by hydraMax (Bits and Pixels)
Updated 11-21-2012 at 01:56 PM by hydraMax
Tags security

http://faif.us/cast/2012/sep/27/0x32/

This oggcast contains Matthew Garrett's discussion of UEFI and Secure Boot. It is the first explanation I've heard on the subject that really came across clearly.
Member
Posted in Uncategorized
Views 655 Comments 0 hydraMax is offline
Old

First prolog program: eight queens problem

Posted 11-09-2012 at 03:36 AM by hydraMax (Bits and Pixels)
Updated 11-09-2012 at 03:38 AM by hydraMax
Tags prolog, puzzles

Sniff, sniff... my first prolog "program" is complete. I decided to do a solution to the eight queens problem, figuring that no one has tried that one before.

Code:
%% Prolog Eight Queens Solution
%% Copyright 2012 by Christopher Howard
%%
%% CC0 Public Domain Dedication:
%% To the extent possible under law, Christopher Howard has waived all copyright
%% and related or neighboring rights to Prolog Eight Queens Solution. This work
%%
...
Member
Posted in Uncategorized
Views 650 Comments 0 hydraMax is offline

  



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