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INTRO(8)							      INTRO(8)

       intro - introduction to system maintenance and operation	commands

       This  section  contains	information  related  to system	bootstrapping,
       operation and maintenance.  It describes	all the	server	processes  and
       daemons	that  run  on the system, as well as standalone	(PROM monitor)

       An 8V section number means one or more of the following:

       o  The man page documents System	V behavior only.

       o  The man page documents default SunOS behavior, and System V behavior
	  as it	differs	from the default behavior.  These System V differences
	  are presented	under SYSTEM V section headers.

       o  The man page documents behavior compliant with IEEE Std  1003.1-1988

       Disk  formatting	 and labeling is done by format(8S).  Bootstrapping of
       the system is described in boot(8S),  openboot(8S)  and	init(8).   The
       standard	 set  of commands run by the system when it boots is described
       in rc(8).  Related commands include those that check the	consistency of
       file  systems,  fsck(8);	 those	that  mount  and unmount file systems,
       mount(8); add swap devices, swapon(8); force completion of  outstanding
       file  system  I/O,  sync(2);  shutdown or reboot	a running system shut-
       down(8),	halt(8), and reboot(8);	and, set the time on  a	 machine  from
       the time	on another machine rdate(8C).

       Creation	 of  file  systems is discussed	in mkfs(8) and newfs(8).  File
       system performance parameters can be  adjusted  with  tunefs(8).	  File
       system backups and restores are described in dump(8) and	restore(8).

       Procedures   for	 adding	 new  users  to	 a  system  are	 described  in
       adduser(8), using vipw(8) to lock the  password	file  during  editing.
       panic(8S)  which	 describes  what  happens  when	 the  system  crashes,
       savecore(8) which can be	used to	analyze	system crash dumps.  Occasion-
       ally  useful  as	adjuncts to the	fsck(8)	file system repair program are
       clri(8),	dcheck(8), icheck(8), and ncheck(8).

       Configuring a new version of the	kernel requires	using the program con-
       fig(8);	major  system  bootstraps often	require	the use	of mkproto(8).
       New devices are added to	the /dev directory (once  device  drivers  are
       configured  into	 the  system)  using  makedev(8)  and  mknod(8).   The
       installboot(8S) command can be used to install  freshly	compiled  pro-
       grams.  The catman(8) command preformats	the on-line manual pages.

       Resource	accounting is enabled by the accton command, and summarized by
       sa(8).  Login time accounting is	performed by ac(8).  Disk  quotas  are
       managed using quot(8), quotacheck(8), quotaon(8), and repquota(8).

       A number	of servers and daemon processes	are described in this section.
       The update(8) daemon forces  delayed  file  system  I/O	to  occur  and
       cron(8) runs periodic events (such as removing temporary	files from the
       disk periodically).  The	syslogd(8) daemon maintains the	 system	 error
       log.   The init(8) process is the initial process created when the sys-
       tem boots.  It manages the reboot process and creates the initial login
       prompts	on the various system terminals, using getty(8).  The Internet
       super-server inetd(8C) invokes all other	internet  servers  as  needed.
       These servers include the remote	shell servers rshd(8C) and rexecd(8C),
       the remote  login  server  rlogind(8C),	the  FTP  and  TELNET  daemons
       ftpd(8C),  and  telnetd(8C),  the  TFTP	daemon tftpd(8C), and the mail
       arrival notification daemon comsat(8C).	Other network daemons  include
       the  `load average/who is logged	in' daemon rwhod(8C), the routing dae-
       mon routed(8C), and the mail daemon sendmail(8).

       If network protocols are	being debugged,	then  the  protocol  debugging
       trace program trpt(8C) is often useful.	Remote magnetic	tape access is
       provided	by rsh and rmt(8C).  Remote line printer access	is provided by
       lpd(8),	and  control  over  the	 various  print	 queues	is provided by
       lpc(8).	Printer	cost-accounting	is done	through	pac(8).

       Network host tables may be gotten from the ARPA NIC using  gettable(8C)
       and converted to	UNIX-system-usable format using	htable(8).

   RPC and NFS daemons
       RPC and NFS daemons include:

	      portmap	used by	RPC based services.
	      ypbind	used  by  the  Network	Information  Service  (NIS) to
			locate the NIS server.	Note: the Network  Information
			Service	 (NIS)	was formerly known as Sun Yellow Pages
			(YP).  The functionality of the	two remains the	 same;
			only the name has changed.
	      biod	used by	NFS clients to read ahead to, and write	behind
			from, network file systems.
	      nfsd	the NFS	server process that responds to	 NFS  requests
			on NFS server machines.
	      ypserv	the NIS	server,	typically run on each NFS server.
	      rstatd	the  server  counterpart  of  the  remote  speedometer
	      mountd	the mount server that runs on NFS server machines  and
			responds  to  requests by other	machines to mount file
	      rwalld	used for broadcasting messages over the	network.

       Name		   Appears on PageDescription

				  22 May 1991			      INTRO(8)


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