Kannel Installation On Centos 7

Step 1: Update System:

Note : Start by updating your package repositories and upgrading installed packages:

sudo apt update
sudo apt upgrade

Step 2 : Dependecies :

 yum install -y openssl-devel  libxml2-devel   texlive-*  m4  gcc-c++ make
 yum install -y openssl-devel  libxml2-devel   texlive-*  m4  gcc-c++ make
 cd usr/local
 curl -O https://ftp.gnu.org/gnu/bison/bison-2.7.tar.gz
 tar zxvf bison-2.7.tar.gz && cd bison-2.7 && ./configure && make && make install && cd src
 rm -rf  /usr/local/bin/bison 
 rm -rf /usr/bin/bison
 cp bison /usr/local/bin/bison && cp bison /usr/bin/bison
 cd .. && cd .. && rm -rf bison-2.7.tar.gz bison-2.7

Step 3 : Download Kannel and Complie And Install

cmd : curl -O -k https://www.kannel.org/download/1.4.5/gateway-1.4.5.tar.gz
cmd : tar -xvzf gateway-1.4.5.tar.gz
cmd : rm -rf gateway-1.4.5.zip (Remove)
cmd : cd gateway-1.4.5
cmd : ./configure   --prefix=/usr/local/gateway-1.4.5
cmd : make
cmd : make install

Command To Start Kannel Manual

--start kannel
/usr/local/gateway-1.4.5/gw/bearerbox  /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &
/usr/local/gateway-1.4.5/gw/smsbox  /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &

Note: The command '&> /dev/null &' is used to run a program in the background while discarding its output. The & at the end makes the command run in the background, and >/dev/null redirects both standard output and standard error to /dev/null, effectively silencing any output produced by the command. This is often used when you don't need to see or log the output of a background process.

Start Automatically Process Using Crone Job

Step 1: Create File Like checkKannel

cmd : mkdir usr/local/scripts
cmd : cd usr/local/scripts
cmd : vi checkKannel

Then Paste Below Code in file and then save file

	if /usr/local/nagios/libexec/check_tcp localhost -p 1403 | grep "Connection refused"
	then
	#killall -9 bearerbox smsbox
	/usr/local/gateway-1.4.5/gw/bearerbox /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &
	sleep 4
	/usr/local/gateway-1.4.5/gw/smsbox /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &
	fi

	if /usr/local/nagios/libexec/check_tcp localhost -p 13013  | grep "Connection refused"
	then
	#killall -9 bearerbox smsbox
	/usr/local/gateway-1.4.5/gw/bearerbox /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &
	sleep 4
	/usr/local/gateway-1.4.5/gw/smsbox /usr/local/gateway-1.4.5/gw/smskannel.conf &> /dev/null &
	fi

Note : above use port 1403 is admin port from config and 13013 is send sms user port from config file

Give Permission To File For Run (below Command set this permission -rwxr-xr-x )

cmd : chmod 755 checkKannel

cmd : crontab -e

Then paste below code in file

	* * * * * usr/local/scripts/checkKannel

Required Nagois for working cronjob code

Note: Nagios is a monitoring system that keeps an eye on your computers and networks. It alerts you when things go wrong and lets you know when they get better. It helps organizations identify and resolve IT infrastructure issues, ensuring that critical systems are always up and running smoothly.

Step 1 : System Update

cmd : sudo yum update

Step 2 : Install Required Dependencies:

cmd : sudo yum install -y gcc glibc glibc-common wget unzip httpd php gd gd-devel perl postfix

Step 3 : Create a Nagios User and Group:

cmd : sudo useradd nagios
cmd : sudo groupadd nagcmd
cmd : sudo usermod -a -G nagcmd nagios

Step 5 : Download and Compile Nagios Core:

cmd : wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.4.6.tar.gz
cmd : tar -xzf nagios-4.4.6.tar.gz
cmd : cd nagios-4.4.6
cmd : ./configure --with-command-group=nagcmd
cmd : make all
cmd : sudo make install
cmd : sudo make install-commandmode
cmd : sudo make install-init
cmd : sudo make install-config

Step 6 : Create a Nagios Web User Account:

cmd : sudo htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

Step 7 : Download and Install Nagios Plugins:

cmd : cd ~
cmd : wget https://nagios-plugins.org/download/nagios-plugins-2.3.3.tar.gz
cmd : tar -xzf nagios-plugins-2.3.3.tar.gz
cmd : cd nagios-plugins-2.3.3
cmd : ./configure --with-nagios-user=nagios --with-nagios-group=nagios
cmd : make
cmd : sudo make install

Step 8 : Start and Enable Apache and Nagios Services:

cmd : sudo systemctl start httpd
cmd : sudo systemctl enable httpd
cmd : sudo systemctl start nagios
cmd : sudo systemctl enable nagios

Enable Port (If Sometime give error then reboot server then try again)

cmd : sudo systemctl status firewalld
cmd : sudo firewall-cmd --zone=public --add-port=1403/tcp --permanent
cmd : sudo firewall-cmd --zone=public --add-port=1505/tcp --permanent
cmd : sudo firewall-cmd --zone=public --add-port=13013/tcp --permanent
cmd : firewall-cmd --reload

Kannel Log File Rotation Setting

cmd : cd /etc/logrotate.d
cmd : vi kannel

File Format
/var/log/kannel/*.log {
          daily
          missingok
          rotate 31
          compress
          delaycompress
          notifempty
          create 640 root root
          sharedscripts
          postrotate
                killall -HUP bearerbox smsbox || true > /dev/null 2> /dev/null
          endscript
}

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