List of Spamassassin Rules and RBLs

On a Redhat Enterprise Linux or CentOS system, you can install the rules at /etc/mail/spamassassin/

#cd /etc/mail/spamassassin
#wget http://www.timj.co.uk/linux/bogus-virus-warnings.cf
#wget http://mywebpages.comcast.net/mkettler/sa/antidrug.cf
#wget http://www.emtinc.net/includes/backhair.cf
#wget http://www.timj.co.uk/linux/bogus-virus-warnings.cf
#wget http://www.emtinc.net/includes/chickenpox.cf
#wget http://www.sa-blacklist.stearns.org/sa-blacklist/sa-blacklist.current.uri.cf
#wget http://www.sa-blacklist.stearns.org/sa-blacklist/random.current.cf
#wget http://www.rulesemporium.com/rules/99_FVGT_Tripwire.cf
#wget http://www.nospamtoday.com/download/mime_validate.cf
#wget http://bl.csma.biz/csma.cf
#wget http://www.ahbl.org/docs/mailservers/spamassassin.txt

To restart spamassassin

#/etc/init.d/spamassassin restart
#service spamassassin restart ( in RHEL or CentOS Enterprise Linux system)

SpamAssassin Rules Emporium
http://www.rulesemporium.com/


Testing your Rules

#spamassassin --lint -D

This command will check if there are errors on your Spamassassin rules


Real Time Block List (RBL)

relays.ordb.org
bl.spamcannibal.org
list.dsbl.org
bl.spamcop.net
dnsbl.njabl.org
cbl.abuseat.org
opm.blitzed.org
sbl.spamhaus.org

List updated: Nov 28, 2006

Endian Update

I monitored the behaviour of my Endian installation. It seems that Dansguardian utilizes most of the CPU resources.

root@kalasag:~ # w
14:52:34 up 6 days, 22:32, 2 users, load average: 0.03, 0.14, 0.16

More info at my QrooniX blog.

Updating Snort Rules

One of the effective tool for updating Snort Rules is by using Activeworx IDS Policy Manager.



You can use both Snort Oinkmaster Rules and Bleeding Edge Snort Rules

Endian Firewall Usage

I have deployed Endian Firewall within our corporate network. I'm already recieving a lot of complaints regarding it's very strict default rules. My boss is happy about it. My only beef against this is the flaky local authentication support.

Endian Firewall Uptime

14:18:28 up 43 days, 16:43, 1 user, load average: 0.26, 0.20, 0.14

So far my Endian Firewall deployment performs very well. Anyways, there still lots of problems on the squid authentication as experienced by Qroon.

SFTP -- Secure File Transfer Protocol

'Sftp' is a secure version of the File Transfer Protocol (ftp). It uses FTP commands to transfer files securely between accounts, whether the accounts are on the same machine or on different machines, including your home computer, if it is properly configured.

Popoy:~# sftp user@popoy.com

Some standard commands for command line SFTP include:

cd	Change the directory on the remote computer
chmod	Change the permissions of files on the remote computer
chown	Change the owner of files on the remote computer
dir (or ls)	List the files in the current directory on the remote computer
exit (or quit)	Close the connection to the remote computer and exit SFTP
get	Copy a file from the remote computer to the local computer
help (or ?)	Get help on the use of SFTP commands
lcd	Change the directory on the local computer
lls	See a list of the files in the current directory on the local computer
lmkdir	Create a directory on the local computer
ln (or symlink)	Create a symbolic link for a file on the remote computer
lpwd	Show the current directory (present working directory) on the local computer
lumask	Change the local umask value
mkdir	Create a directory on the remote computer
put	Copy a file from the local computer to the remote computer
pwd	Show the current directory (present working directory) on the remote computer
rename	Rename a file on the remote host
rm	Delete files from the remote computer
rmdir	Remove a directory on the remote host (the directory usually has to be empty)
version	Display the SFTP version
!	In Unix, exit to the shell prompt, where you can enter commands. Enter exit to get back to SFTP. If you follow ! with a command (e.g., !pwd), SFTP will execute the command without dropping you to the Unix prompt.

PostgreSQL commands to Remember

Inserting Query
psql -U postgresqluser databasename -f file

Backup the PostgreSQL database
pg_dump databasename > databasebackup.bak

DOS vs. Linux Commands To Remember

Command's Purpose	MS-DOS	Linux	Basic Linux Example
Copies files	copy	cp	cp thisfile.txt /home/thisdirectory
Moves files	move	mv	mv thisfile.txt /home/thisdirectory
Lists files	dir	ls	ls
Clears screen	cls	clear	clear
Closes prompt window	exit	exit	exit
Displays or sets date	date	date	date
Deletes files	del	rm	rm thisfile.txt
"Echoes" output on the screen	echo	echo	echo this message
Edits files with simple text editor	edit	pico	pico thisfile.txt
Compares the contents of files	fc	diff	diff file1 file2
Finds a string of text in a file	find	grep	grep this word or phrase thisfile.txt
Formats a diskette	format a: (if diskette is in A:)	mke2fs	/sbin/mke2fs /dev/fd0 (/dev/fd0 is the Linux equivalent of A:)
Displays command help	command /?	man	man command
Creates a directory	mkdir	mkdir	mkdir directory
View a file	more	less	less thisfile.txt
Renames a file	ren	mv	mv thisfile.txt thatfile.txt
Displays your location in the file system	chdir	pwd	pwd
Changes directories with a specified path (absolute path)	cd pathname	cd pathname	cd /directory/directory
Changes directories with a relative path	cd ..	cd ..	cd ..
Displays the time	time	date	date
Shows amount of RAM and use	mem	free	free

source : Redhat Docs