SRV(4) SRV(4) NAME srv, srvold9p, 9fs, srvssh - start network file service SYNOPSIS srv [ -abcCemnq ] [ -s seconds ] [net!]system[!service] [ srvname [ mtpt ] ] srvssh [ -r ] [ -R ] [ -s ] [ -u u9fspath ] system [ srvname [ mtpt ] ] 9fs [net!]system [mountpoint] srvold9p [ -abcCdF ] [ -p servicename ] [ -s | -m mountpoint ] [ -u user ] [ -x command | -n network-addr | -f file ] DESCRIPTION Srv dials the given machine and initializes the connection to serve the 9P protocol. By default, it connects to the `9fs' (9P) service, which for TCP is port 564. It then cre- ates in /srv a file named srvname. Users can then mount (see bind(1)) the service, typically on a name in /n, to access the files provided by the remote machine. If srvname is omitted, the first argument to srv is used. Option m directs srv to mount the service on /n/system or onto mtpt if it is given. Option q suppresses complaints if the /srv file already exists. The a, b, c, C, and n options are used to control the mount flags as in mount (see bind(1)). The e option causes srv to treat system as a shell command to be executed rather than an address to be dialed. The s option causes srv to sleep for the specified number of seconds after establishing the connection before posting and mount- ing it. This is sometimes needed by srvssh. The specified service must serve 9P. Usually service can be omitted; when calling some non-Plan-9 systems, a service such as u9fs must be mentioned explicitly. The 9fs command does the srv and the mount necessary to make available the files of system on network net. The files are mounted on mountpoint, if given; otherwise they are mounted on /n/system. If system contains `/' characters, only the last element of system is used in the /n name. 9fs recognizes some special names, such as dump to make the dump file system available on /n/dump. 9fs is an rc(1) script; examine it to see what local conventions apply. Srvssh is an rc(1) command that connects to a remote Unix system via ssh(1) and starts u9fs(4). The -u option SRV(4) SRV(4) specifies the path to the u9fs binary on the remote system. (By default, an unrooted path of u9fs is used; if the binary is in the path of the remote SSH server, you don't need the -u option.) For information about the other options, see the introductory comment in /rc/bin/srvssh. The arguments are the same as srv. Srvold9p is a compatibilty hack to allow Fourth Edition Plan 9 systems to connect to older 9P servers. It functions as a variant of srv that performs a version translation on the 9P messages on the underlying connection. Some of its options are the same as those of srv; the special ones are: -d Enable debugging. -F Insert a special (internal) filter process to the connection to maintain message boundaries; usually only needed on TCP connections. -p servicename Post the service under srv(3) as /srv/servicename. -u user When connecting to the remote server, log in as user. Since srvold9p does no authentica- tion, and since new kernels cannot authenti- cate to old services, the likeliest value of user is none. -x command Run command and use its standard input and output as the 9P service connection. If the command string contains blanks, it should be quoted. -n network-addr Dial network-addr to establish the connection. -f file Use file (typically an existing srv(3) file) as the connection. Srvold9p is run automatically when a cpu(1) call is received on the service port for the old protocol. EXAMPLES To see kremvax's and deepthought's files in /n/kremvax and /n/deepthought: 9fs kremvax 9fs hhgttg /n/deepthought To mount as user none a connection to an older server SRV(4) SRV(4) kgbsun: srvold9p -u none -m /n/kgbsun -p kgbsun -n il!kgbsun Other windows may then mount the connection directly: mount /srv/kgbsun /n/kgbsun To connect to an instance of the Unix server u9fs(4) started via ssh(1): srvssh unix FILES /srv/* ports to file systems and servers posted by srv and 9fs SOURCE /sys/src/cmd/srv.c /rc/bin/9fs /rc/bin/srvssh /sys/src/cmd/srvold9p SEE ALSO bind(1), auth(2), dial(2), srv(3), exportfs(4), import(4), ftpfs(4), u9fs(4) BUGS Srv does not explicitly report failures of auth_proxy (see auth(2)); mount (see bind(1)) does.