本文介绍如何在CentOS 7服务器上从源代码安装Kamailio SIP代理服务器。

使用repo进行安装的缺点是我们将永远无法获得最新版本的Kamailio SIP服务器。如果要在服务器上获取最新版本的Kamailio，请考虑从源文件构建Kamailio SIP服务器。

设置准备工作

运行CentOS 7服务器MariaDB数据库服务器

确保服务器已更新：

sudo yum -y update
sudo reboot

然后安装MariaDB数据库服务器。

sudo yum install mariadb-server

现在启动并启用MariaDB数据库服务，并使其在启动时运行：

sudo systemctl enable --now mariadb

设置用于登录的MariaDB超级用户密码：

sudo  mysql_secure_installation

它将要求我们设置root密码并禁用远程root登录：

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
 ... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

在CentOS 7中从源代码安装Kamailio SIP代理服务器

如果我们不使用SELinux，则可以考虑将其设置为"允许"模式：

sudo sed -i 's/(^SELINUX=).*/SELINUX=permissive/' /etc/selinux/config

如果我们事先安装了Kamailio，尤其是从存储库中安装了Kamailio，请彻底删除：

sudo su 
find/-name "kamai*" -print0 | xargs -0 /bin/rm -rf

然后删除旧数据库：

$mysql -u root -p
MariaDB [(none)]> SHOW DATABASES;
If there's a database called kamailio,drop it: 
MariaDB [(none)]> DROP DATABASE kamailio; 
MariaDB [(none)]> EXIT

安装以下必需的依赖项：

sudo yum -y install epel-release
sudo yum groupinstall "Development Tools"
sudo yum install bison pcre-devel libpcap-devel flex git libevent json* libunistring-devel  webkitgtk3-devel perl librabbitmq mariadb-devel libevent-devel librabbitmq-devel perl-devel mod_perl-devel perl-Encode-devel perl-Qt-devel perl-Glib-devel perl-Tk-devel

从github下载最新版本的Kamailio并安装。

sudo su 
cd /usr/src/
git clone git://git.sip-router.org/kamailio kamailio
cd kamailio/

在安装Kamailio时启用默认情况下未编译的模块，这些是我编译时使用的模块：

sudo make include_modules="db_mysql dialplan websocket debugger permissions usrloc dispatcher registrar uuid sdpops presence auth auth_db avp tm presence_mwi outbound sl maxfwd nat xhttp helper kazoo db_text textops siputils uac presence_dialoginfo kex uac_redirect xlog sanity htable rr pv app_perl path ctrl tls ctl mi_fifo dmq dialog avpops textopsx tmx presence_xml" cfg

输出：

make -C src/cfg 
target architecture <x86_64>, host architecture <x86_64>
make[1]: Entering directory `/usr/src/kamailio/src'
making config...
rm -f modules.lst
make --no-print-directory modules.lst
saving modules list...
make[1]: Leaving directory `/usr/src/kamailio/src'

编译Kamailio：

sudo make all

安装Kamailio：

sudo make install

与kamailio相关的所有二进制文件和可执行脚本都安装在：

$ls /usr/local/sbin/kam*

每个的解释：kamdbctl数据库命令行控制和管理实用程序。kamailio Kamailio SIP服务器守护程序application.kamctl用于管理Kamailio SIP服务器的命令行实用程序kamcmd调用Kamailio RPC函数的Unix工具

安装的Kamailio模块位于：/usr/local/lib64/kamailio/modules /

$ls /usr/local/lib64/kamailio/modules/

查看我所有模块的屏幕截图。

打开Kamailio配置文件：

sudo vi /usr/local/etc/kamailio/kamailio.cfg

在#！KAMAILIO行之后添加以下行。

#!define WITH_MYSQL 
#!define WITH_AUTH 
#!define WITH_USRLOCDB 
#!define WITH_NAT 
#!define WITH_PRESENCE 
#!define WITH_ACCDB 
#!define WITH_VOICEMAIL 
#!define WITH_PSTN

在/etc/default /目录中创建默认的kamailio文件。

sudo tee /etc/default/kamailio<<EOF
RUN_KAMAILIO=yes 
USER=kamailio 
GROUP=kamailio 
SHM_MEMORY=64 
PKG_MEMORY=8
PIDFILE=/var/run/kamailio/kamailio.pid
CFGFILE=/usr/local/etc/kamailio/kamailio.cfg
#DUMP_CORE=yes
EOF

添加Kamailio用户和组：

sudo groupadd -g 5000 kamailio 
sudo useradd -u 5000 -g 5000 -d /var/run/kamailio -M -s /bin/false kamailio

创建pid文件目录

sudo mkdir -p /var/run/kamailio 
sudo chown kamailio:kamailio -R /var/run/kamailio

创建Kamailio Systemd文件以启动和停止kamailio服务。

sudo tee /etc/systemd/system/kamailio.service<<EOF
[Unit]
Description=Kamailio SIP Proxy Server
After=syslog.target network.target mariadb.service

[Service]
Type=forking
EnvironmentFile=-/etc/default/kamailio
PIDFile=$PIDFILE
# ExecStart requires a full absolute path
ExecStart=/usr/local/sbin/kamailio -P $PIDFILE -f $CFGFILE -m $SHM_MEMORY -M $PKG_MEMORY -u $USER -g $GROUP
ExecStopPost=/bin/rm -f $PIDFILE
Restart=on-abort

[Install]
WantedBy=multi-user.target
EOF

编辑文件kamctlrc以设置数据库引擎

$sudo vi /usr/local/etc/kamailio/kamctlrc 
DBENGINE=MYSQL

创建kamailio使用的数据库：

sudo /usr/local/sbin/kamdbctl create

我们已完成安装Kamailio SIP代理服务。通过以下方式启动：

sudo systemctl daemon-reload
sudo systemctl start kamailio 
sudo  systemctl enable kamailio

确认服务状态：

$sudo systemctl status kamailio 
● kamailio.service - Kamailio SIP Proxy Server
   Loaded: loaded (/etc/systemd/system/kamailio.service; disabled; vendor preset: disabled)
   Active: active (running) since Sun 2017-05-03 16:31:49 UTC; 10s ago
  Process: 18887 ExecStopPost=/bin/rm -f (code=exited, status=0/SUCCESS)
  Process: 18907 ExecStart=/usr/local/sbin/kamailio -P $PIDFILE -f $CFGFILE -m $SHM_MEMORY -M $PKG_MEMORY -u $USER -g $GROUP (code=exited, status=0/SUCCESS)
 Main PID: 18909 (kamailio)
   CGroup: /system.slice/kamailio.service
           ├─18909 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18913 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18914 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18915 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18916 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18917 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18918 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18919 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18920 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18921 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18922 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18923 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18924 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
           ├─18925 /usr/local/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f /usr/local/etc/kamailio/kamailio.cfg -m 64 -M 8 -u kamailio -g kamai...
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