cinit - Daemons backgrounding
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Revision 0.1 | for cinit 0.3, Initial versinon from 2005-06-12 | NS |
This document describes the backgrounding process and how to disable it.
A daemon is a program which runs in the background.
Running in the background means you cannot access the process
directly (like you can press a key in a shell).
cinit normally watches system services and restarts them
(respawn
flag in the configuration). If the process goes to background,
cinit cannot control it directly anymore.
List of daemons and non-forking parameters
The following daemons / servers are known to avoid backgrounding easily:
-
acpid [x86 power management]: -f (undocumentated but works)
-
apache [webserver]: -DFOREGROUND
-
asterisk [pbx]: -f
-
bind [dns server/caching]: -f
-
cardmgr [pcmcia/cardbus]: -f
-
cron (vixie) [schedular]: -f
-
cupsd [printer server]: -f or -F
-
dhclient [dhcp client]: -d
-
dhcp3 (isc) [dhcp server]: -f
-
distccd [compile server]: normal behaviour
-
fam [file alteration monitor]:-f
-
fcron [schedular]: -f
-
frox [ftp proxy]: "NoDetach" in config
-
gdm [display manager]: -nodaemon
-
hybrid [irc server]: -foreground
-
icecast2 [sound streamer]: normal behaviour
-
mini-lpd [printer server]: normal behaviour
-
metalog [log server]: normal behaviour
-
monotone [vcs]: normal behaviour
-
mpd [music server]: —no-daemon
-
nessusd ["security server"]: normal behaviour
-
ntpd [time server]: -n
-
nylon [socks proxy]: -f (prints output to terminal)
-
oidentd [identd server]: -i
-
oops [http proxy]: normal behaviour
-
openssh [ssh server]: -D
-
openvpn [vpn server]: normal behaviour
-
pbbuttonsd [power management]:normal behaviour
-
portmap [portmapper]: -f
-
proftpd [ftp server]: -n
-
qmail [mta]: normal behaviour
-
rsync ["file server"]: —no-detach
-
silcd ["secure chat server"]: -F, —foreground
-
slapd [ldap]: -d
-
snmpd [snmp daemon]: -f
-
stunnel [ssl wrapper]: "foreground = yes" in config
-
svnserve [vcs]: —foreground
-
syslogd [log server]: -n
-
syslog-ng [log server]: -F
-
tcpserver [super server]: normal behaviour
-
udhcpc [dhcp client]: normal behaviour
-
vsftpd [ftp server]: normal behaviour (or: config: background=no)
-
xinetd [super server]: -dontfork
Those are the daemons that do not offer the possibility (as of release 0.2):
-
atd (no switch, no configuraton option)
-
inetd (some variants)
-
nscd (no switch, no configuraton option)