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Archive for the 'NIX Posts' Category

Web and Networking: Securing the Apache HTTPD (port 80) configuration from malicious scans.

It's still a surprise to most just how much scanning and probing by either hackers or malicious software is going on on the web when they do find out.  I mean, do you really know how many times your workstation or home network get's hit by attempted intrusions and invasions?  I was never able to [...]

Fedora 10+: UI video / graphics problems upon reboot to Fedora 10+. Graphics are unreadable.

PROBLEM
One of the first things that went wrong after upgrading to Fedora 10 was the UI screen was unreadable / undescernable.  The screen was entirely messed up and though the keyboard worked fine, it wasn't easy to discern the UI windows from the shades of red, yellow, blue, green etc grany dots that showed [...]

Fedora 10: unable to authenticate user and reenabling the root login access.

PROBLEM
In Fedora 10, the root login was disabled into the GUI, giving you a unable to authenticate user message.  You may have noticed that you got a warning about this in Fedora 9 but it wasn't yet disabled then.  Not so in Fedora 10 so this might be something you would want to do [...]

RedHat Linux Fedora: Fedora 9 to Fedora 10 upgrade.

Well folks, it’s upgrade time again.  It’s been raining releases from Fedora lately, each one coming out almost every 6 months so here we are.  My own installation is over 4 years old and I took it from Fedora 1 to Fedora 10 in that time. (You can search here for the older upgrade [...]

Fedora & KDE: ERROR: Couldn’t attach to DCOP server!

DCOP server is essentially communication software used by various Linux systems to allow applications to talk to each other.  For example, copying and pasting from kword to say firefox would occur through klipper (KDE clipboard) currently and the way the copied data moves between these applications is DCOP.  More recently, DCOP has been started to [...]

Linux: cups giving 404 Not Found when trying to access http://localhost:631/

PROBLEM
When trying to access http://localhost:631/ for the cupsd / cups configuration, you receive:
404 Not Found
SOLUTION

Terminal Emulators: Dynamically changing the tab title text in Konsole and alternative emulators.

Some time back I was introduced to konsole and never went back to terminal emulators like xterm, however a list of good tabbed linux terminal emulator alternatives is provided below in case konsole isn’t available to all.  There are ones such as putty however this is an Windows ssh client.   Just the fact [...]

F9, KDE 4.X and Konsole: Extra spaces on console command line between cursor and text.

PROBLEM
Following some recent upgrades to my distro the Konsole window cursor was always ahead of the text that was typed.  The problem was compounded when lines of text were longer though this problem wasn't present in other terminal applications.  This really looked horrible using vim, as you can probably imagine.  As you can see [...]

KDE 4.X and Fedora 9+: The taskbar is gone.

PROBLEM
The task bar panel is gone, disappeared or has been removed/unconfigured part of some configuration change as a result of an upgrade or update.  This is one issue I had when upgrading from Fedora 8 to Fedora 9 and was mostly due to extensive overhaul of the KDE 4.1/4.0 over it’s predecessor KDE 3.5.  [...]

Graphics and Video: Changing the graphics/video resolution with xrandr

PROBLEM
How do I change my screen resolution?  Changes made in the GUI control panel option in KDE 4.0 are just not sticking or are not becoming permanent / saved.
SOLUTION


     
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