Background
I was with my geekfriends at a ski resort and I managed to get an Internet connection using a cellphone. Of course I wanted to share it with my friends. As geeks we brought a switch and a couple of ethernetcables.
Solution
Using this script on a Ubuntu 9.10 I managed to share my connection:
sudo ifconfig eth0 10.8.16.1
sudo sysctl -w net.ipv4.ip_forward=1
sudo [...]
My laptop and cellular phone has both Bluetooth and it has annoyed me for a while that I have not managed to get a working Internet connection using Bluetooth. I have only managed to get it working with a USB cable between my phone and laptop.
After some Google search and reading of man pages I finally [...]
Background
I use MythTV quite frequently and noticed that it is instable when using sasc-ng as a decoder to decrypt encrypted DVB-T channels. So approximatly every third day the MythTVbackend server stops and need to be started again. I have wriiten an earlier article about howto monitor MythTV with Nagios or op5 Monitor so I get [...]
My firewall get alot of failed ssh logins.
This is a typical log message in /var/log/authlog
Feb 9 20:15:49 pedro sshd[30934]: Failed password for root from 67.205.85.119 port 35603 ssh2
Feb 9 20:15:49 pedro sshd[2656]: Received disconnect from 67.205.85.119: 11: Bye Bye
Feb 9 20:15:51 pedro sshd[15299]: Failed password for root from 67.205.85.119 port 35753 ssh2
Feb 9 20:15:51 pedro [...]
In some cases the "Normal" way of running checks does not work, passive checks might do the job. I have a script the runs every night that backup my MySQL database. If this script fails I would like op5 Monitor or Nagios to send a notification. An active check will not work in this case [...]
Now when my blog is growing a need for backup is growing. After a short google search I found exactly what I want, automysqlbackup.
It is a shell script that has very modest requirements list:
mysqldump, included in mysql client
gzip or bzip2 if you want it compressed.
mail if you want the status of the script to be [...]
When I updated my CentOS system and could not mount XFS file system and my op5 Monitor did not react. I even run check_disk on these mount points but op5 Monitor did not tell me that anything was wrong. So when I managed to get the system to boot and my monitoring system tell me [...]
