openser(8)

NAME

openser - flexible and roboust SIP (RFC3261, RFC3263) server for Voice over IP (VoIP)

SYNOPSIS

openser [ -hcCrRvdDEVT ] [ -f config-file ] [ -l address ] [ -n processes-no ] [ -N tcp processes-no ] [ -b max_rcv_buf_size ] [ -m shared_mem_size ] [ -w working-dir ] [ -W method ] [ -t chroot-dir ] [ -u uid ] [ -g gid ] [ -P pid-file ] [ -i fifo-path ] [ -x socket-path ]

DESCRIPTION

OpenSER is a SIP-based VoIP server running on most Unix-like operating systems. It supports UDP, TCP and TLS transport layers. Among its features:

*: SIP Proxy Server, SIP Registrar Server, SIP Redirect Server, SIP Location Server, SIP Application Server

*: Call Processing Language (RFC3880)

*: ENUM support

*: server side NAT traversal

*: LCR - least cost routing

*: load balancing

*: AAA with database (MySQL, Postgres, Unixodbc) or RADIUS backend

*: audio, video, instant messaging and pressence

OPTIONS

-h: Displays a short usage description, including all available options.

-c: Checks the config file and displays the aliases and listen interface list.

-C: Similar to -c but in addition checks the flags of exported functions from included route blocks.

-r: Uses dns to check if it is necessary to add a "received=" field to a via.

-R: Same as -r but uses reverse dns.

-v: Turns on via host checking when forwarding replies.

-d: Turns on debugging, multiple -d increase the debug level.

-D: Runs openser in the foreground (it doesn't fork into daemon mode).

-E: Sends all the log messages to stderr.

-T: Disables TCP support.

-V: Displays the version number.

-f config-file: Reads the configuration from config-file (default /etc/openser/openser.cfg ).

-l address: Listens on the specified address/interface. Multiple -l mean listening on multiple addresses. The address format is [proto:]address[:port], where proto = udp|tcp and address = host|ip_address|interface_name. Example: -l localhost, -l udp:127.0.0.1:5080, -l eth0:5062. The default behaviour is to listen on all the ipv4 interfaces.

-n processes-no: Specifies the number of children processes forked per interface (default 8).

-N tcp processes-no: Specifies the number of children processes forked to handle tcp incoming connections (by default is equal to -n ).

-b max_rcv_buf_size: Maximum receive buffer size which will not be exceeded by the auto-probing procedure even if the OS allows.

-m shared_mem_size: Size of the shared memory which will be allocated (in Megabytes).

-w working-dir: Specifies the working directory. In the very improbable event that openser will crash, the core file will be generated here.

-W method: Specify poll method.

-t chroot-dir: Forces openser to chroot after reading the config file.

-u uid: Changes the user id under which openser runs.

-g gid: Changes the group id under which openser runs.

-P pid-file: Creates a file containing the pid of the main openser process.

-i fifo-path: Creates a fifo, usefull for monitoring openser status.

-x socket-path: Creates a unix socket, usefull for monitoring openser status ( same as -i fifo-path but using instead unix sockets).

FILES

/usr/sbin/openser
/etc/openser/openser.cfg
/usr/lib/openser/modules/*

AUTHORS

see /usr/share/doc/openserAUTHORS