Wednesday, November 30, 2005

firewalls

linux firewall
http://muse.linuxmafia.org

linux advances routing

linux advanced routing project and traffic control.
http://lartc.org

information regarding slackware

some interesting information about slackware.

http://www.edafe.org/slackware/index.html#ntp

Friday, November 18, 2005

high availability and load balance all in one

a complete linux solution for high availability and load balancing.

http://www.ultramonkey.org/

Wednesday, November 16, 2005

Preventing SYN flooding

prevents SYN flooding. need to enable iin linux using the following command
echo 1 > /proc/sys/net/ipv4/tcp_syncookies

Dan Bernstein
http://cr.yp.to/syncookies.html

Tuesday, November 15, 2005

from power up to bash

came across this document while going through Linux from Scratch. I
know at some point I was wondering how you get from power up to a
shell prompt. I have too much on my plate right now but will save this
for later.
--
http://axiom.anu.edu.au/~okeefe/p2b/power2bash/power2bash-2.html

i completely forgot about one of the best resource

Securityfocus is an excellent source of security related information.
During the setup of the web server I completely overlooked
securityfocus. I looked everywhere but there, till towards the end.
Only to find answers to 90% of my research there.
http://www.securityfocus.com

Securing apache
http://www.securityfocus.com/infocus/1694
Securing mysql step-by-step
http://www.securityfocus.com/infocus/1726

Monday, November 14, 2005

different methods of resetting root password

how to reset the root password. covers different options like passing
in options to grub or lilo etc.
http://linuxgazette.net/107/tomar.html

Sunday, November 13, 2005

webserver partitioning scheme

for the web server i decided to go with the following setup. dual
1.4Ghz PIIIs with 2Gb RAM. the partitioning scheme is as follows

hda1 - /boot - ext2 - 512Mb
hda2 - / - ext3 - 10Gb
hda3 - /home- ext3 - 10Gb
hda5 - swap - swap- 4Gb (twice the ram)
hda6 - /tmp - ext3 - 1Gb
hda7 - /var - ext3 - rest

haven't setup up the RAID 1 yet. decided to go with Apache 1.3 and
php4 because that is Daniels preferred choice. the mysql servers are
going to be serperate.

INTERNET ----> Load Balancer ---->------------------------
(using direct routing)
| webserver 1 |
|webserver 2 |
------------------------
|

----------------------------------
mysql 1 (load balancing)
mysql 2 (mirroring)

----------------------------------

balance - name says it all

An open source load balancing software. can provide different types of
load balancing from direct routing to tunneling.
http://www.inlab.de/balance.html

CODA- distributed file system

Coda is an advanced networked filesystem. it is suppose to be high
performance and can provice server replication and loads of other
features. it is suppose to have native suport in linux kernel.

http://www.coda.cs.cmu.edu/

webserver benchmarking tool

found "FLOOD" at http://httpd.apache.org/test/flood/

is suppose to be a benchmarking utility for webservers but am not sure
if it is limited to apache only because it is a product of the
foundation. its not like them.

webservers

came across an alternate open source browser called "lighttpd"
(http://www.lighttpd.net). They claim to be a few times faster than
Apache according to some benchmark study at
http://www.lighttpd.net/benchmark/
After googling around some more I make across this blog titled
"Debunking lightttpd"
http://paul.querna.org/journal/articles/2005/06/24/debunking-lighttpd?postid=82

need to do more research.

first post

i intend to use this as a log of my interesting findings mainly in the
field of information technology.
sameer