SVN

How to checkout code from deep server

1. Make tunnel to deep server
ssh -L 4444:deepserver.dyndns.org:2222 10.65.1.75 -N

2. Add tunnel svn config file
open ~/.subversion/config and add
sshtunnel = ssh -qp 4444 under tunnels

3. Checkout code
svn co svn+sshtunnel://localhost/srv/svn/repositories/TradingSystem

http://tomorrowisfriday.wordpress.com/2007/11/28/tunneling-subversion-for-the-svnssh-protocol/

SNMP

http://www.linuxhomenetworking.com/wiki/index.php

SSH

What Is SSH?

There are a couple of ways that you can access a shell (command line) remotely on most Linux/Unix systems. One of the older ways is to use the telnet program, which is available on most network capable operating systems. Accessing a shell account through the telnet method though poses a danger in that everything that you send or receive over that telnet session is visible in plain text on your local network, and the local network of the machine you are connecting to. So anyone who can "sniff" the connection in-between can see your username, password, email that you read, and commands that you run. For these reasons you need a more sophisticated program than telnet to connect to a remote host.

http://support.suso.com/supki/SSH_Tutorial_for_Linux

GCC

Build GCC 4.5

http://openwall.info/wiki/internal/gcc-local-build

Linux user configurations

Newtork Configuration
# system-config-network
# /etc/init.d/network restart


Start samba ...
$system-config-samba

Status samba
#/sbin/service smb status

Restart Samba
#/sbin/service smb restart

Add user (auto)
#/usr/sbin/useradd auto

Check user info of and user
#id auto

Add group
#/usr/sbin/groupadd auto

Add user to a group
#/usr/sbin/usermod -G groupname username

Give permition of directories
#chown -R username.groupname directory

Create VPN

How to Add new VPN account

log in to router using "ssh"

# en

# conf t //entering to configuration mode

# username priv password

Ex: username user1 priv 7 password userpwd // priv 7 for moderate privileges
Ex: username user1 priv 15 password userpwd // priv 15 for admin privileges

# end //exit from configuration mode

# exit //exit from router

To delete an existing VPN account

Use same syntax for creating account with "no" the beginning.
Ex: no username user1 priv 7 password userpwd

CISCO Switch

Useful commands to check configurations

• sh run //show run
• sh ip int br //show ip interface briefly
• sh int br //to check duplex mode
  

How to bounce a cisco switch

• Log in to the switch using "telnet".
• Go to enable mode using "en".
• Bounce switch using "reload".
  

How to bounce a interface in cisco switch

• Log in to the switch using "telnet".
• Go to enable mode using "en".
• Go to configuration mode "conf t".
• Then select particular interface "interface Gi2/0/46" .
• Then "shutdown" and "no shutdown"
• Exit from configuration mode using "exit".