How to setup OSPF routing : How to view what protocols is running: show ip protocols how to kill rip protocols (if exists) configure terminal no router rip How create OSPF protocols configure terminal router ospf 1 [ here 1 is the process id, which has to be same to every router in the organization [...]
Archive for June, 2010
Cisco:Routing protocols OSPF
Tuesday, June 29th, 2010Nagios script to monitor memory uses
Thursday, June 24th, 2010#!/bin/bash #Version 1.0 ####################################### #Nagios scrept to check memory status## #Commands : free -m##################### ####################################### #Status check for nagios script STATE_OK=0 STATE_WARNING=1 STATE_CRITICAL=2 STATE_UNKNOWN=3 STATE_DEPENDENT=4 #Define All the variables for commands declare -rx SCRIPT=${0##*/} declare -rx CMD_AWK="/bin/awk" declare -rx CMD_CAT="/bin/cat" declare -rx CMD_FREE="/usr/bin/free" #####Section 1.1 
efinning function for [...]
Cisco:Basic Commands to setup vlan
Wednesday, June 16th, 2010Trunking: (1)Create trunk ports between 2 switch: to setup trunk between port F0/11 and F012 of Switch S1 For Port F0/11 configure terminal interface fastEthernet 0/11 switchport mode trunk note : if upper commands say : command rejected with error : Trunk encapsulation is Auto, then do the followings switchport trunk encapsulation dot1q Now type [...]
Mysql Server processlist shows negative value(-) in connect column for system user
Wednesday, June 9th, 2010Some times process list out put show negative value like bellow : Command : watch /usr/local/mysql/bin/mysqladmin -ppass processlist 8 | system user | | Connect | -1247 | Has read all relay log; waiting for the slave I/O thread to update it | One of the reason : make sure both Server has same time [...]
How To Set Up MySQL Database Replication With SSL Encryption
Wednesday, June 9th, 2010Step1 : Set up normal replication first and find out if mysql server is compiled with ssl supports Ref:http://www.fosiul.com/index.php/2009/11/mysql-server-master-master-active-active-replication/ Bellow commands will verify if mysql server is compiled with ssl supports SHOW VARIABLES LIKE ‘have_openssl’; output : Step2 : in Server1 : (a)Create Self signed certificate . Note : While Creating self signed certificate use [...]
nagios script to check dns servers status
Monday, June 7th, 2010#!/bin/bash ################################### #Purpose:################################################################ ###(a) Monitor if all your name server is online: Status one #### ###(b) Monitor if all name server has same zone record : Staus : Ongoing## ###(c) Monitor the Response time of Dns server : Status : Ongoing# ######################################################################### #Status check variables for nagios script##### ##################################### STATE_OK=0 STATE_WARNING=1 STATE_CRITICAL=2 STATE_UNKNOWN=3 STATE_DEPENDENT=4 [...]
Linux:How to run c program in linux
Friday, June 4th, 20101. Open an editor in linux Example vi editor 2. Write a simple program and save it as progra1.c #include <stdio.h> int main (void) { printf ("Programming is fun.\n"); return 0; } 3. compile the program : $ gcc prog1.c 4. Run the program : ./a.out Or 5.you can give it a different name : [...]