Quick fix:
$sudo yum install hunspell-en
Further reading:
Archive for the ‘Linux’ Category
how to – enable spell check in firefox on fedora 12
Tuesday, April 27th, 2010dhclient triggers / hooks with dhclient-script
Thursday, February 18th, 2010dhclient overwrites custom network configuration (read routes) with the defaults provided from the dhcp server. dhclient-script can be used to set custom rules for dhclient. It provides a way to hook into dhclient before and after updating network configuration.
Application specific DHCP options can be handled by creating a script with two functions and placing it in /etc/dhcp/dhclient.d
The script must follow a specific form:
- The script must be named NAME.sh. NAME can be anything, but it makes sense to name it for the service it handles. e.g., network_routes.sh
- The script must provide a NAME_config() function to read the options and do whatever it takes to put those options in place
- The script must provide a NAME_restore() function to restore original configuration state when dhclient stops
- The script must be ‘chmod +x’ or dhclient-script will ignore it
The scripts execute in the same environment as dhclient-script. That means all of the functions and variables available to it are available to your NAME.sh script.
Things of note:
- ${SAVEDIR} is where original configuration files are saved. Save your original configuration files here before you take the DHCP provided values and generate new files
- Variables set in /etc/sysconfig/network, /etc/sysconfig/networking/network, and /etc/sysconfig/network-scripts/ifcfg-$interface are available to you
Took me a while to find this documentation. No more surprises from now on when dhclient updates the lease
vsftpd : Allowing access to folders outside home when “chroot_local_user=YES”
Tuesday, December 2nd, 2008With ‘chroot_local_users=YES’ vsftpd locks a user to his/her home directory, but every now and then you have a few users who need access to more that one user’s home for some reason or other
Getting around chroot
For the record “ls -s /home/user1 /home/user2″ does not work. chroot will not allow you to get out
Starting for kernel 2.4.Something a filesystem could be mounted on multiple mount points using the –bind option. hence:
$sudo mount --bind /home/user1/ /home/user2/user1
That’s it, log in as user2 and you should be able to see user1’s home. Add it to rc.local so that its mounted on reboot
Set display name of outgoing Emails send by phpBB311
Thursday, November 13th, 2008phpBB3 [version 3.0.3] by default cannot set the display name in the headers of outgoing emails. You could try all you want from the administration control panel but a look under the hood in the source code will tell you its almost impossible.
Fixing it is pretty easy.
open file phpBB3_root_path/includes/functions_messenger.php find: $headers[] = 'From: ' . $this->;from; replace with: $headers[] = 'From: Display Name ' . $this->;from; find: $headers[] = 'Reply-To: ' . $this->;replyto; replace with: headers[] = 'Reply-To: Display Name ' . $this->;replyto; find: $headers[] = 'Return-Path: <' . $config['board_email'] . '>;'; replace with: $headers[] = 'Return-Path: Display Name <' . $config['board_email'] . '>;'; find: $headers[] = 'Sender: <' . $config['board_email'] . '>;'; replace with: $headers[] = 'Sender: Display Name <' . $config['board_email'] . '>;';
That should do the trick. Did it work for you ?
ip_conntrack: table full, dropping packet
Friday, September 19th, 2008Looking at syslog from my load balancing server that runs Linux LVS I noticed something that I had never seen before:
server2 kernel: [43206369.830000] ip_conntrack: table full, dropping packet.
It appears that my server has hit the maximum number of concurrent connections that can be tracked
Increasing the table size
The maximum number of connections tracked can be found by:
$sudo cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max 65536
Time to double to number of connections that the table can track:
$sudo nano /etc/sysctl.conf
and add the line
net.ipv4.netfilter.ip_conntrack_max = 131072
reload the sysctl.conf
$sudo sysctl -p
Further Reading:
A weekend with ASUS eeePc and Debian GNU+Linux
Monday, September 15th, 2008Its been an incredible weekend! I installed Debian Lenny on the eeePc. Its fast and stable running GNOME, using only 149 of 512 MB RAM available on the device. I love this little notebook now. It just the way I like it
Why ?
For academic purposed a.k.a just for the kicks. Jokes apart, because:
- The original OS is based on debian
- There is a debian installer available for the eeepc
- I am a GNOME person
- I am comfortable with debian
- Having full fledged debian is just neat !
I can’t get enough of this little thing. The little piece of hardware can do almost everything I can do on my desktop. IMHO this is a perfect companion for road warriors who are always on the move and need access to a browser, mail and a productivity suite
How to connect PyS60 Bluetooth console and Ubuntu 8.04
Saturday, August 23rd, 2008
There appears to be a bug in Ubuntu 8.04’s bluetooth packages, because of which when someone trying to connect to the serial port of the computer from the mobile phone running Python receives an error message saying “No Serial ports found”. This article provides a quick fix for connecting Python Bluetooth console to a computer running Ubuntu
Diving in
The bug only exist in Ubuntu 8.04’s bluetooth packages. Two packages (bluez-utils and libbluetooth2) have to be updated from debian sid’s repository
- Download and Install:
- bluez-utils from http://packages.debian.org/unstable/admin/bluez-utils for your architecture
- libbluetooth2 from http://packages.debian.org/sid/libbluetooth2 for your architecture
- Connecting to the console [source: Pys60 wiki]:
In a terminal as normal user:
- Reset the HCI device:
$ hciconfig reset
- Check that the device exists:
$ hcitool dev
- Register a serial port (use channel 2. For some reason, channel 1 and channel 3 might not let the connection through)
$ sdptool add --channel=2 SP
- Now listen to the channel:
$ rfcomm listen rfcomm2 2
In your phone, make sure bluetooth is on, then go to the Python application and then select the Bluetooth Console. Select from the list of available devices your computer’s bluetooth adapter (you might need to select search even if you think you have already defined the pairing). If the operation is successful, you should see something similar to the following on your computer’s shell:
Waiting for connection on channel 2 Connection from 00:1D:FD:EE:86:38 to /dev/rfcomm2 Press CTRL-C for hangup
Now open a new shell terminal and execute:
$ cu -l /dev/rfcomm2
You’re now in control of your mobile’s python console.
Happy hacking !
