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runit
is a cross-platform Unix init scheme with service supervision, designed as a replacement for sysvinit, and other init schemes. It runs on GNU/Linux, *BSD, MacOSX, Solaris, and can easily be adapted to other Unix operating systems.
runit
can replace or work with an existing init scheme such as sysvinit, *BSD init, or MacOSX init.
Some benefits of runit
include:
Additional information is available at:
daemontools is an alternate service supervision package that comes with the typical qmail install. Its FAQ provides some good information on the general benefits of service supervision.
Using with forkserver
Once runit
is running, getting it to supervise qpsmtpd-forkserver
is as simple as creating a run
script in the right directory:
# mkdir /var/service/qpsmtpd # cat >/var/service/qpsmtpd/run <<EOT > #!/bin/bash > unset PERL_UNICODE > /path/to/qpsmtpd/qpsmtpd-forkserver --detach -u smtpd -p 25 > EOT # chmod 755 /var/service/qpsmtpd/run
runit
will automatically load the new service creating a runsv
service supervisor for the service. The runsvdir
process checks for new directories under the service directory at least every five seconds.
SME Server uses a configuration with a single init.d
script that is linked to all the rc.d
startup scripts combining familiar SysV startup with the benefits of service supervision. Additional information is available at: