intro man page on OpenBSD

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INTRO(8)		OpenBSD System Manager's Manual		      INTRO(8)

NAME
     intro - introduction to system maintenance and operation commands

DESCRIPTION
     The manual pages in section 8 contain information related to system
     operation and maintenance.	 They describe commands concerning file
     systems, such as edquota(8), fsck(8), mount(8), and newfs(8).  They also
     cover commands concerning system backup/recovery, such as dump(8) and
     restore(8).

     There are pages which document the running of the system, such as
     afterboot(8), ifconfig(8), security(8), and the configuration files
     located in /etc.  Procedures concerning system failure are documented in
     crash(8).

     Section 8 pages also describe network services and daemons.  The rest of
     this page discusses some of the main daemons available on the OpenBSD
     system, and how to enable/disable them.

     System daemons are controlled by the script rc(8), which is in turn
     configured by rc.conf(8).	For example the HTTP daemon httpd(8) is
     controlled by the following line from rc.conf(8):

	   httpd_flags=NO

     Thus it is not started by default.	 To enable or disable daemon
     processes, administrators should edit the file rc.conf.local(8), which
     overrides rc.conf(8).  So to enable httpd(8), the following line might be
     added to /etc/rc.conf.local:

	   httpd_flags=""
     or
	   httpd_flags="-DSSL"

     As can be seen above, this method is also used to specify additional
     options.

     Below is a list of some of the daemons available.	For further
     information, see rc(8) and the individual pages for the utilities.

   Apache web server (HTTP)
     The apache web server, httpd(8).  On OpenBSD, it will chroot(2) to the
     ``ServerRoot'' path.  Detailed information is available in
     /usr/share/doc/html/httpd/.

     Relevant rc.conf(8) variables: httpd_flags.

   Automounter daemon (amd)
     If using the amd(8) package, go into the /etc/amd directory and set it up
     by renaming master.sample to master and editing it and creating other
     maps as needed.  Alternatively, you can get your maps with YP.

     Relevant rc.conf(8) variables: amd, amd_dir, and amd_master.

   BIND name server (DNS)
     If you are using the BIND name server, check the /etc/resolv.conf file.
     It may look something like:

	   domain nts.umn.edu
	   nameserver 128.101.101.101
	   nameserver 134.84.84.84
	   search nts.umn.edu. umn.edu.
	   lookup file bind

     If using a caching name server, add the line "nameserver 127.0.0.1"
     first.

     Relevant rc.conf(8) variables: named_flags.

   Clock synchronisation
     In order to make sure the system clock is correct, it may be synchronised
     with a number of external sources.	 The utilities available are: ntpd(8),
     rdate(8), and timed(8).

     Relevant rc.conf(8) variables: ntpd_flags, rdate_flags, and timed_flags.

   Concatenated disks (ccd)
     If you are using ccd(4) concatenated disks, edit /etc/ccd.conf.  Use the
     ccdconfig -U command to unload and the ccdconfig -C command to create
     tables internal to the kernel for the concatenated disks.	You then
     mount(8), umount(8), and edit /etc/fstab as needed.

   BOOTP/DHCP server
     If this is a BOOTP or DHCP server, edit /etc/dhcpd.conf as needed.	 See
     also diskless(8).

     Relevant rc.conf(8) variables: bootparamd_flags, dhcpd_flags, and
     dhcrelay_flags.

   HP remote boot server
     Edit /etc/rbootd.conf if needed for remote booting.  If you do not have
     HP computers doing remote booting, do not enable this.  See also
     diskless(8).

     Relevant rc.conf(8) variables: rbootd_flags.

   Kerberos
     If you are going to use kerberos(8) for authentication, and you already
     have a Kerberos master, change directory to /etc/kerberosV and configure.
     Remember to get a srvtab from the master so that the remote commands
     work.

     Relevant rc.conf(8) variables: krb5_master_kdc and krb5_slave_kdc.

   NFS server
     If this is an NFS server, edit /etc/exports.

     Relevant rc.conf(8) variables: nfs_server and nfsd_flags.

   Relay Daemon
     A relay daemon, relayd(8), able to run as a load-balancer, application
     layer gateway, or transparent proxy.

     Relevant rc.conf(8) variables: relayd_flags.

   Routing Daemons
     Various daemons for managing routing tables are available: bgpd(8),
     ospfd(8), and ripd(8).

     Relevant rc.conf(8) variables: bgpd_flags, ospfd_flags, and ripd_flags.

   RPC-based network services
     Several services depend on the RPC portmapper, portmap(8), being running
     for proper operation.  This includes YP and NFS exports, among other
     services.

     Relevant rc.conf(8) variables: portmap.

   YP setup
     Check the YP domain name with the domainname(1) command.  If necessary,
     correct it by editing the /etc/defaultdomain file (see defaultdomain(5)).
     The /etc/netstart script reads this file on boot to determine and set the
     domain name.  You may also set the running system's domain name with the
     domainname(1) command.  To start YP client services, simply run ypbind,
     then perform the remaining YP activation as described in passwd(5) and
     group(5).

     In particular, to enable YP passwd support, you'll need to add the
     following line to /etc/master.passwd:

	   +:*::::::::

     You do this by using vipw(8).

     There are many more YP man pages available to help you.  You can find
     more information by starting with yp(8).

SEE ALSO
     afterboot(8), rc(8), rc.conf(8)

HISTORY
     The intro section manual page appeared in 4.2BSD.

OpenBSD 4.9		       February 18, 2010		   OpenBSD 4.9
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