You can see how my terminal colors are different than standard:

If you want to know where this information is stored on your filesystem:

#!/bin/bash
cat ~/.config/terminator/config

My current palette:

palette = "#2e3436:#cc0000:#4e9a06:#c4a000:#c48dff:#75507b:#06989a:#d3d7cf:#555753:#e52222:#a6e32d:#fc951e:#3465a4:#fa2573:#67d9f0:#f2f2f2"

The same can be done for gnome-terminal, but that stores it’s defaults in gconf. You can retrieve them using gconftool-2:

#!/bin/bash
gconftool-2 --all-entries /apps/gnome-terminal/profiles/Default

This is fun as these colors carry over into Vim etc, so when you are not using the graphical versions, you can still spice up your syntax highlighting.

Related posts:

1. Workspaces
2. Making OpenBSD more friendly

I actually enabled compiz for the first time in a long time, and AMD’s linux drivers have come a long way since my critical posts a few years ago about them. Great to see the whole stack improving.

Default Search Engine
This week I switched over my default search engine to Duck Duck Go.

I really like it’s clean interface, and their attention to privacy and technology enthusiasm.

New Home Page
In addition, I updated my generic landing page using Python / Flask to pull feeds etc, I really like the simplicity of Flask and the well thought out design / documentation. I also published the source on github.

Related posts:

1. Looking for help
2. Using SSH to access internal network sites from an external network
3. Make your bash shell cool again

In order to accomplish this, Apache 2.x is needed, along with mod_ssl and mod_proxy. Here is the magic:

<VirtualHost virtualhostipaddress:443>
        SSLProxyEngine on
        #SSLProxyCACertificateFile /etc/apache2/ssl/google.crt
        SSLEngine on
        RequestHeader set Front-End-Https "On"
        ServerName testing

        #SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
        SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
        SSLCertificateFile /etc/apache2/ssl.crt
        SSLCertificateKeyFile /etc/apache2/ssl.key
        #LogLevel debug

        ErrorLog /var/log/apache2/ssl_proxy_error.log
        CustomLog /var/log/apache2/ssl_proxy_access.log combined

        <Proxy *>
                Order deny,allow
                Allow from all
        </Proxy>

        ProxyVia On
        ProxyRequests Off
        ProxyPreserveHost Off
        ProxyPass / https://www.securewebsite.com:443/
        ProxyPassReverse / https://www.securewebsite.com:443/

        #SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
        BrowserMatch "MSIE [1-4]" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
        BrowserMatch "MSIE [5-9]" ssl-unclean-shutdown
</VirtualHost>

Obviously replace virtualhostipaddress with the ip you want to bind to and securewebsite.com with the actual website.

No related posts.

Skills we need:

• Administration – familiar with Apache / SSL / SSH / Kickstart or autoyast / rsync / hardening etc
• Virtualization – xen
• RPM creation
• Perl (Catalyst is a plus)
• PHP (Symfony is a plus)
• Python (Django is a plus)
• C
• Compiling kernels, making slight adjustments to drivers etc
• Thin client experience is a plus
• Software distribution (ZLM / Altiris)
• Bash scripting
• Javascript / Jquery
• HTML / CSS
• Rest
• XML / JSON / Yaml
• Git / Bazaar / Svn
• Having a github or launchpad account is a plus

If you think you fit the bill email me ASAP as it is an immediate opening, and I will put you in touch with my HR department. You can find my email through Launchpad or Google.

Related posts:

1. Looking for someone to give me a hand
2. Got skills? Email me
3. Novell Linux Client on Ubuntu redux

Add this to your bootup options (in our case PXE config, but you can type it manually also from the installation CD prompt):

libstorage_imsm_driver=mdadm

That is all there is to it. To configure the rest of autoyast, you can check out Uwe Gansert’s website as he maintains it: http://www.suse.com/~ug/

Other hard to find resources when tracking these things down:

• Yast2 SVN Repository
• OpenSUSE Git Repository

Related posts:

1. SLES / SLED 10 with Intel 965 Graphics
2. Dell D620 Love
3. Adventures in 3D Dual Head for Dell D620 with intel

From a programming perspective, having the linux kernel source is a prerequisite. In this example, I cloned the main kernel:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git linux

Once I had the source, I specifically wanted to see exactly how I could interface with the driver called usblp. I was using a USB to parallel port converter, and wanted to see if there was any way to force it to operate differently as we needed a non-printer device to work with it.

After opening the kernel source, I found the driver file itself which was under /drivers/usb/class/usblp.c. In this file I found a section of information about which IOCTLs it supported, and put them in a header file for my program called usblp-hack.h:

#ifndef USBLP_HACK_H
#define USBLP_HACK_H

#include <linux/ioctl.h>

/* ioctls: */
#define IOCNR_GET_DEVICE_ID     1
#define IOCNR_GET_PROTOCOLS     2
#define IOCNR_SET_PROTOCOL      3
#define IOCNR_HP_SET_CHANNEL        4
#define IOCNR_GET_BUS_ADDRESS       5
#define IOCNR_GET_VID_PID       6
#define IOCNR_SOFT_RESET        7
/* Get device_id string: */
#define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
/* The following ioctls were added for http://hpoj.sourceforge.net: */
/* Get two-int array:
 * [0]=current protocol (1=7/1/1, 2=7/1/2, 3=7/1/3),
 * [1]=supported protocol mask (mask&(1<<n)!=0 means 7/1/n supported): */
#define LPIOC_GET_PROTOCOLS(len) _IOC(_IOC_READ, 'P', IOCNR_GET_PROTOCOLS, len)
/* Set protocol (arg: 1=7/1/1, 2=7/1/2, 3=7/1/3): */
#define LPIOC_SET_PROTOCOL _IOC(_IOC_WRITE, 'P', IOCNR_SET_PROTOCOL, 0)
/* Set channel number (HP Vendor-specific command): */
#define LPIOC_HP_SET_CHANNEL _IOC(_IOC_WRITE, 'P', IOCNR_HP_SET_CHANNEL, 0)
/* Get two-int array: [0]=bus number, [1]=device address: */
#define LPIOC_GET_BUS_ADDRESS(len) _IOC(_IOC_READ, 'P', IOCNR_GET_BUS_ADDRESS, len)
/* Get two-int array: [0]=vendor ID, [1]=product ID: */
#define LPIOC_GET_VID_PID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_VID_PID, len)
/* Perform class specific soft reset */
#define LPIOC_SOFT_RESET _IOC(_IOC_NONE, 'P', IOCNR_SOFT_RESET, 0)
#endif

There are plenty of hints on usage here, and I was able to grab a little more info after searching for some of those defines in google code search. Using these IOCTLs I wanted to know exactly which modes the USB to parallel converter supported, and try to set it in mode 3, which I hoped would give me more options for talking to the device.

Here is my usblp-hack.c which was able to probe and update these settings, although in my case mode 3 didn’t work, but shows an example of exactly how to do it:

#include "usblp-hack.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>		/* open */
#include <unistd.h>		/* exit */
#include <sys/ioctl.h>		/* ioctl */

main()
{
	int fd;
	int twoints[2];

	fd = open("/dev/usblp0", O_RDONLY | O_NONBLOCK);
	if (fd < 0) {
		printf("Cannot open device.\n");
		exit(-1);
	}

	if(ioctl(fd, LPIOC_GET_PROTOCOLS(sizeof(int[2])), &twoints) >= 0)
		printf("Great success: %d / %d\n", twoints[0], twoints[1]);
	else {
		printf("Fail!\n");
		exit(-1);
	}

	if(ioctl(fd, LPIOC_SET_PROTOCOL, 2) >= 0)
		printf("set protocol to version 2\n");
	else {
		printf("Fail!\n");
		exit(-1);
	}

	if(ioctl(fd, LPIOC_GET_PROTOCOLS(sizeof(int[2])), &twoints) >= 0)
		printf("Great success: %d / %d\n", twoints[0], twoints[1]);
	else {
		printf("Fail!\n");
		exit(-1);
	}

	if(ioctl(fd, LPIOC_SOFT_RESET) >= 0)
	{
		printf("Success reset device\n");
	} else {
		printf("Could not reset device\n");
		exit(-1);
	}

	close(fd);
	exit(0);
}

You can compile the above example just using gcc:

gcc -o usblp-hack usblp-hack.c

You can see in the example above I was able to probe the device to see what mode it was currently in and supports (LPIOC_GET_PROTOCOLS), attempt to set the device mode (LPIOC_SET_PROTOCOL), and soft reset the device (LPIOC_SOFT_RESET).

So in the end, nothing here too complex or mind blowing, but if you are just getting your feet wet it might take you a minute to dig this sort of information up.

Related posts:

1. Programming in C: Converting an Integer to Binary (int to bin)
2. MMap to null
3. Why?