tshark (CLI) from wireshark (GUI) {gonna sniff your packets}

there is a wonderful CLI utility tcpdump to handle packet sniffing... but there is also one similar utility with the power of Wireshark at command line known as TSHARK (if you don't know)


so, to use it you just need to install Wireshark in plain old-skool way like

#yum install wireshark

and then to start 'tshark', you need to simply run it like

#tshark

but in some cases, on running '#tshark' if it gives error like 
tshark: error while loading shared libraries: libsmi.so.2: cannot open shared object file: No such file or directory

so, you just need to install one more library, which gets failed to install automatically still required

#yum install libsmi

and then run '#tshark' smoothly

{Deploy} Installing FreeSWITCH (VoIP) on CentOS, Fedora, RedHat

This HowTo can be downloaded at http://www.slideshare.net/AbhishekKr/free-switch-cent-os

FreeSWITCH on RedHat, Fedora, CentOS

To Install 'FreeSWITCH' on CentOS/RedHat/Fedora

=============================================================

============================================================= 

Execute following commands at shell: 

___________________________________________

Installing Dependencies {Require Internet} 

===========================================

yum -y install autoconf automake libtool gcc-c++ ncurses-devel 

yum -y make expat-devel zlib zlib-devel libjpeg-devel unixODBC- devel 

yum -y openssl-devel gnutls-devel libogg-devel libvorbis-devel 

yum -y curl-devel libtiff-devel libjpeg-devel

___________________________________________

Download/Extract FreeSWITCH Source =========================================== 

wget http://files.freeswitch.org/freeswitch-1.0.6.tar.gz tar -zxvf freeswitch-1.0.6.tar.gz

___________________________________________ 

Optional {to add OpenZAP support to FreeSWITCH} 

=========================================== 

echo "../../libs/openzap/mod_openzap" >> freeswitch-1.0.6/modules.conf 

___________________________________________ 

Compiling/Installing FreeSWITCH 

=========================================== 

cd freeswitch-1.0.6 

./configure 

make install 

make cd-sounds-install 

make cd-moh-install 

make uhd-sounds-install 

make uhd-moh-install 

make hd-sounds-install 

make hd-moh-install 

make sounds-install 

make moh-install 

make mod_portaudio-install 

make samples 

___________________________________________ 

create symlink for main binaries, EZ-ACCESS 

=========================================== 

ln -s /usr/local/freeswitch/bin/freeswitch /usr/local/bin/freeswitch 

ln -s /usr/local/freeswitch/bin/fs_cli /usr/local/bin/fs_cli

__________________________________________ 

Post Installation =========================================== 

to launch app 

#freeswitch 

to launch app at background (no console)

#freeswitch -nc 

to stop a running freeswitch instance 

[] running foreground: 

> ... {i.e. 3 periods} 

[] running background: 

# freeswitch -stop 

to access cmd-line of any FreeSWITCH server 

#fs_cli 

try commands like 'version','help' to exit use 'fsctl shutdown' or '...' 

__________________________________________

[PERL CPAN] Missing Perl Module... install by CPAN

it's an old thing still several users are unaware, so a quickie howto for all of them

[PERL CPAN] whenever any perl module found missing

CPAN is Comprehensive Perl Archive Network, a cool place to install Perl Modules instead of keep searching
---------------------------------------------------

you can simple install it as

"perl -MCPAN -e "install "
e.g.
#perl -MCPAN -e "install Net::CIDR"

if it's giving error and asking a force install, most probably a depending module isn't present
so install that first, or if you still wanna install it do a FORCE install
e.g.
#perl -MCPAN -e "CPAN::Shell->force(qw(install Net::CIDR))"

{Deploy} Installing RED5 Server on CentOS, Fedora, RedHat

Installing RED5 Server on CentOS, Fedora, RedHat

it's an Open Source Flash Server written in Java for Multimedia Streaming Web/Network Application

[] it requires Java 1.6 to be pre-installed
#yum -y install java-1.6.0-openjdk java-1.6.0-openjdk-devel
#yum -y install java-1.6.0-openjdk-javadoc java-1.6.0-openjdk-src

[] Setup 'Apache ANT', required to build Red5
#cd /usr/src
#wget http://apache.sunsite.ualberta.ca/ant/binaries/apache-ant-1.8.1-bin.tar.bz2
#tar jxvf apache-ant-1.8.1-bin.tar.bz2
#mv apache-ant-* /usr/local/ant

[] Settimg up ENV variables as per required
#export ANT_HOME=/usr/local/ant
#export JAVA_HOME=/usr/lib/jvm/java
#export PATH=$PATH:/usr/local/ant/bin

[] Download & Install RED5
#cd /usr/src
#svn co http://red5.googlecode.com/svn/java/server/trunk red5server
#mv red5server /usr/local/
#cd /usr/local/red5server
#ant prepare
#ant dist
#cp -r dist/conf ./
#./red5.sh

[] To use RED5 Server
- checking if it works
    browse 'http://RED5-Server-IP:5080/'
- to install your RED5 Server based applications
    copy them to dir '/usr/local/red5server/webappz'
    suppose you copy them to '/usr/local/red5server/webappz/myFlash'
    so they will be accessible at 'http://RED5-Server-IP:5080/myFlash/'
- to make it run at port 80 like any HTTP Server
    edit '/usr/local/red5/conf/red5-origin.xml' and '/usr/local/red5/conf/red5.properties'
    by replacing all instances of Port# 5080 by simply Port# 80

{RPM} unRAR in CentOS, Fedora, RedHat

i found CentOS was a bit rude to UnRAR the rar files, and even in 'yum' installing the unrar {at least for me}... so here is rpm way for it... if you are also facing same problem

[] Downloading the suitable RPM {you can download from any location}
wget http://dag.wieers.com/packages/unrar/unrar-3.6.2-1.el4.rf.i386.rpm

[] Installing RPM
rpm -Uvh unrar-3.6.2-1.el4.rf.i386.rpm


[] Using
- to extract RAR files in current dir
unrar e rarfile.rar

- to extract RAR files with Pathname
unrar x rarfile.rar