Archive for the ‘IT’ Category

17 Jun
2011

SELinux: Running samba unconfined

I don't want to disable SELinux, but i'm using samba to access about every file on the system. To run samba unconfined, change its context: chcon -t unconfined_exec_t /usr/sbin/smbd service smb restart This works for other software as well. Update:… Read more Another solution may be to run software in permissive mode

IT | No Comments » | Tags: , , ,

16 Jun
2011

Minimize Google Talk at startup

Google Talk has a function to automatically start on boot. However, it cannot minimalize automatically. To run Google Talk minimized by default, you'll need to use some external software.

CMDOW

I'm using a tool named cmdow… Read more to do the hiding for me. Cmdow is an extremely useful tool for showing,

IT, Windows | No Comments » | Tags: ,

15 Jun
2011

Fedora 15: Nagios errors

Installation of Nagios on Fedora 15 is easy as yum install nagios nagios-plugins* php nrpe. I only found one problem: Error: Could not read object configuration data!… Read more The webserver runs as user apache, which cannot access /etc/nagios/objects by default. Chmod or chown the directory to fix it, or add

IT, Linux | 4 Comments » | Tags: ,

15 Jun
2011

OpenVPN: script failed: could not execute external program

I've been using the great VPN software OpenVPN for a long time now. I just love it. Today, I copied the configuration of my old router to my brand new Fedora 15 box, and suddenly it can't start anymore. In the logs I found this message: script failed: could not … Read more

IT | 1 Comment » | Tags: , ,

11 Jun
2011

Updating the Dell PERC H200 firmware

My brand new Dell R300 servers contain a PERC H200 SAS/SATA controller that has pretty bad firmware. Luckily, Dell released better firmware, but you'll need to update it yourself.
  • Install and boot RedHat 5.6 or CentOS 5.6
  • Download the file RAID_FRMW_LX_R294620.BIN from the Dell support site
  • run yum install compat-libstdc++-33
    • … Read more

IT | No Comments » | Tags: , , , ,

11 Jun
2011

Review: Belkin KVM Omniview 5216K

A few months ago I got myself quite an expensive new device: a Belkin Omniview 5216K… Read more, model no F1DP216G. With this device, I'm supposed to be able to access the KVM of up to 16 servers. I can install them servers remotely (over PXE or virtual media), configure the

Hardware, IT | No Comments » | Tags: , , , , ,

5 Jun
2011

Printing from a CUPS server to Windows 7

A colleague of mine has some family issues that require him to be home more often. However, work continues. So he started working at home with a laptop. Nothing special about that. What is special, is that we're running a piece of software ("RR") that has old-style telnet-like terminals, which… Read more

IT | No Comments » | Tags: , , , , , ,

5 Jun
2011

WordPress: custom links on plugin page

Since WordPress 2.8, you can easily add your own links to the plugin page. This can be useful to jump right to the settings of the plugin. Example code: 
<span style="color: #000000; font-weight: bold;">function</span> set_plugin_meta<span style="color: #009900;">&#40;</span><span style="color: #000088;">$plugin_meta</span><span style="color: #339933;">,</span> <span style="color: #000088;">$plugin_file</span><span style="color: #339933;">,</span> <span style="color: #000088;">$plugin_data</span><span style="color: #339933;">,</span> <span style="color: #000088;">$status</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>

<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span>plugin_basename<span style="color: #009900;">&#40;</span><span style="color: #009900; font-weight: bold;">__FILE__</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">!=</span><span style="color: #000088;">$plugin_file</span><span style="color: #009900;">&#41;</span>
… Read more

IT, Linux | No Comments » | Tags: , ,

5 Jun
2011

An Asterisk 1.8 fax server

To start, I setup a clean, minimal Fedora 15 installation.

Install requirements

After installation, we install a few more tools that we need: yum install asterisk asterisk-fax #base yum install perl-Email-MIME libtiff-tools #for mailer script yum install telnet mc vim ntp rsync #for convenience and backup Synchronize your time: sntp … Read more

IT, Linux | No Comments » | Tags: , , , , , ,

29 May
2011

Dracut: add drivers to your initrd

My HP 8150w laptop has this neat lis3lv02d accelerometer to be able to detect when it's falling and to park the harddisk to prevent damage. I use this instrument to detect whether I'm on the road or at the office. This way, I can set preferences at boot-time, even before… Read more

IT | No Comments » |

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