linux tips and tricks, notes and documentation
user@pc:~$ dig +short SRV _xmpp-client._tcp.gmail.com
20 0 5222 talk3.l.google.com.
20 0 5222 talk4.l.google.com.
5 0 5222 talk.l.google.com.
20 0 5222 talk1.l.google.com.
20 0 5222 talk2.l.google.com.
everything seems to be ok. start kopete – add account – Jabber
basic setup -> jabber id: user@googlemail.com
Connection -> check “Use protocol encryption (SSL)” , “Allow plain-text password authentication“, “Override default server information: talk2.l.google.com Port:5223”
aptitude install bchunk
bchunk file.bin file.cue file.iso
… with rcconf -> aptitude install rcconf 
I’ve been playing with Kubuntu Intrepid (8.10) for about two weeks and the thing that annoys me most is the autocomplete option in Konsole/shell.
so, if U want to enable it, do following:
sudo nano /etc/bash.bash.rc -> uncomment part # enable bash completion in interactive shells
source /etc/profile
everything should work now 
edit and copy-paste at the end of the file /etc/sysctl.conf
net.ipv4.tcp_no_metrics_save=1
net.core.rmem_default=65536
net.core.wmem_default=65536
net.core.rmem_max=52428800
net.core.wmem_max=52428800
net.ipv4.tcp_rmem = 8192 750000 52428800
net.ipv4.tcp_wmem = 8192 750000 52428800
net.ipv4.tcp_reordering=20
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_sack=0
net.ipv4.tcp_moderate_rcvbuf=1
net.ipv4.tcp_congestion_control = cubic
net.ipv4.tcp_adv_win_scale=9
save file, exit and reboot your machine
p.s. tnx to Popaj
ubuntu geek kick ass!
cool article located here
sudo touch /forcefsck && sudo reboot