*Nix {rm -rf /}

encrypt removable drive / media

very nice guide on encrypting removable drives.

http://www.packtpub.com/article/securely-encrypt-removable-media-with-ubuntu

connect to DiGi 3G using E90 (or whatever bluetooth capable phone)

$ hcitool scan
– get device name –> 00:ab:cd:ef:whatever devicename

$ sdptool search –bdaddr 00:ab:cd:ef:whatever dun
– get dun’s channel, i get 4

$ sudo rfcomm bind 0 00:ab:cd:ef:whatever 4
– this to bind the channel to rfcomm0 port

$ cat /etc/bluetooth/rfcomm.conf
rfcomm0 {
bind yes;
device 00:ab:cd:ef:whatever;
channel 4;
comment “nokia e90″;
}

$ cat /etc/bluetooth/pin
1234

– to auto bind once connected via bluetooth

Credit to :
1. m3topaz @ http://ubuntuforums.org/showthread.php?t=1066691
2. vtsv.com @ http://vtsv.com/blog/reference/gprs-digi-edge-ubuntu/

Symbian Cert Generator

Step 1: http://andy.ehandysoft.com/devcert.php

Step 2: http://www.symbiantalk.net/showthread.php?7735-How-To-Sign-SIS-Application-File-After-Getting-Certificate-And-Key

-useful for cert generated for Symbian unsigned apps.

xfs_quota checklist

To check quota status / state:
xfs_quota -x -c ‘state -p’ /home

ipv6 settings for local net

Windows XP

ipv6 install
netsh interface ipv6 add address “Local Area Connection” 2001::local:net:0
netsh interface ipv6 add route ::/0 “Local Area Connection” 2001::local:gate:0 publish=yes

XFS coolness: Quota on directory

/etc/projects
1:/home/user/wordpress

/etc/projid
user1:1

xfs_quota -x -c ‘project -s user1′ /home
xfs_quota -x -c ‘limit -p bhard=100m ‘user1′ /home
xfs_quota -x -c ‘report /home’

To check :
xfs_quota -x -c ‘path’

test

[standings league_id=2 mode=extend]

unix time 1234567890

next week , once in a lifetime event:

# date -d @1234567890
Sat Feb 14 07:31:30 MYT 2009

enjoy !!!

Free Alternatives for Business Softwares

Main productivity suites that we use quite extensively for work are the -

A. Office Suites
B. Photoshop
C. Illustrator

Free Alternatives (and great products too !!!)

A. Openoffice.org (download)
B. GIMP (download)
C. InkScape (download)

Want some more ? There are gazillions of free alternative softwares available for consumption. Shout out, we will give you the alternates.

simplest firewalling rules

this basically denies all incoming connection that is not initiated by the user and allowing all authorised traffic to flow in.

iptables -A INPUT -m state –state RELATED,ESTABLISHED -j ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -j DROP
iptables -A OUTPUT -j ACCEPT
iptables -A FORWARD -j DROP

to unblock ping request

iptables -A INPUT -p icmp -j ACCEPT