SIP Kamailio Examples Configurations and Lua scripts for the roles Kamailio can play

Websocket protocol supported Kamailio server suited for WebRTC clients

used server - Kamailio (OpenSER) SIP Server v5.3

SSL certs using

creating file paths

mkdir certs
mkdir certs/private
mkdir certs/newcerts
touch certs/index.txt
echo 01 >certs/serial
echo 01 >certs/crlnumber

list the files

/home/ubuntu/certs# ls
crlnumber  index.txt  newcerts  private  serial

create ca private key

openssl genrsa -out certs/private/cakey.pem 2048
chmod 600 certs/private/cakey.pem

create ca self signed certificate

openssl req -out certs/cacert.pem -x509 -new -key certs/private/cakey.pem

create server / client certificate, a private key (by name privkey.pem)

openssl req -out kamailio1_cert_req.pem -new -nodes
openssl ca -in kamailio1_cert_req.pem -out kamailio1_cert.pem

output should be like … Certificate is to be certified until Jun 25 11:02:41 2020 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated

and files genrated shoudl look like

/home/ubuntu# ls certs kamailio1_cert.pem kamailio1_cert_req.pem privkey.pem

copy the newly created certs to their respective paths

mkdir /etc/pki/CA/
cp kamailio1_cert.pem /etc/pki/CA/
cp privkey.pem /etc/pki/CA/

make list of ca certs by finding all cacerts across root directory and appending them to a catlist pem

find / -name cacert.pem
cat /usr/share/doc/libssl-doc/demos/cms/cacert.pem >> /home/ubuntu/catlist.pem
cat /usr/share/doc/libssl-doc/demos/smime/cacert.pem >> /home/ubuntu/catlist.pem
cat /home/ubuntu/kamailio_source_code/misc/tls-ca/rootCA/cacert.pem >> /home/ubuntu/catlist.pem
...
cp /home/ubuntu/catlist.pem /etc/pki/CA/

update kamailio.cfg

modparam("tls", "certificate", "/etc/pki/CA/kamailio1_cert.pem")
modparam("tls", "private_key", "/etc/pki/CA/privkey.pem")
modparam("tls", "ca_list", "/etc/pki/CA/calist.pem")

Compiling and loading websocket module into kamailio.cfg

goto source folder -> modules -> websocket and compile

cd /home/ubuntu/kamailio_source_code/src/modules/websocket
make && make install

check websocket.io in module directory

ls /usr/local/lib64/kamailio//modules/websodket.io

include in kamailio.cfg

loadmodule "websocket.so"

ref : https://loadmultiplier.com/node/236

Kamcmd lookups

Get info about open sockets

kamcmd> core.sockets_list
{
	socket: {
		proto: udp
		address: 1.2.3.4
		port: 5060
		mcast: no
		mhomed: no
	}
	socket: {
		proto: tcp
		address:  1.2.3.4
		port: 5060
		mcast: no
		mhomed: no
	}
	socket: {
		proto: tcp
		address:  1.2.3.4
		port: 80
		mcast: no
		mhomed: no
	}
	socket: {
		proto: tls
		address:  1.2.3.4
		port: 5061
		mcast: no
		mhomed: no
	}
	socket: {
		proto: tls
		address:  1.2.3.4
		port: 443
		mcast: no
		mhomed: no
	}
}

debugging help

Issue1 error on save command
```shell script
if (!save(“location”)) {
sl_reply_error();
}
cfg. parser: failed to find command save (params 1) ```
solution rebuild registrar module , check the version of core kamailio and modules

Ref :

View this page’s source on GitHub