bionic (8) diod.8.gz

NAME

       diod - distributed I/O daemon

SYNOPSIS

       diod [OPTIONS]

DESCRIPTION

       diod is the distributed I/O daemon server, which implements I/O forwarding on Linux clusters.

       Configuration  is  read  from the diod.conf (5) config file.  Some configuration can be overridden on the
       command line, as described below.

OPTIONS

       -f, --foreground
              Do not change working directory to  /var/run,  drop  the  controlling  terminal,  or  run  in  the
              background.  Send logs to stderr not syslog, unless sent somewhere else by -L.

       -r, --rfdno INT

       -w, --wfdno INT
              Serve  a  connected  client  inherited on the specified read and write file descriptors.  For file
              descriptors connected bidirectionally, the two options may be set to the same value.

       -l, --listen address
              Set  the  listen  address.   The  address  may  be  in  the  form  of   HOST:PORT,   IP:PORT,   or
              /path/to/unix_domain_socket  form  (default  0.0.0.0:564).  This option may be specified more than
              once.  It overrides the listen config file setting.

       -t, --nwthreads INT
              Set the number of worker threads to spawn to handle 9P operations for  each  unique  aname.   This
              option overrides the nwthreads setting in diod.conf (5).  The default is 16.

       -e, --export PATH
              Set  the  file  system to be exported.  This option may be specified more than once.  It overrides
              the exports setting in diod.conf (5).

       -E, --export-all
              Export everything in the server's /proc/mounts.

       -o, --export-opts OPT[,OPT,...]
              Set global export options.  This option overrides the exportopts setting in diod.conf (5).

       -n, --no-auth
              This option allows users to attach without security credentials.  It overrides  the  auth_required
              setting in diod.conf (5).

       -N, --no-userdb
              This option disables password/group lookups.  It allows any uid to attach and assumes gid=uid, and
              supplementary groups contain only the primary gid.  It overrides  the userdb setting in  diod.conf
              (5).

       -S, --allsquash
              Remap  all  users  to  the  squash  user.   The attaching user need not be present in the server's
              password file.  This option overrides the allsquash setting in diod.conf (5).

       -U, --squashuser
              Set the squash user.  The default is nobody.  This option  overrides  the  squashuser  setting  in
              diod.conf (5).  Note: if diod is not run as root, the effective uid overrides the squashuser.

       -u, --runas-uid UID
              Run  the server as UID and only allow that user to attach.  If invoked as root, diod sets real and
              effective uid, gid, and supplementary groups to those belonging to UID.

       -L, --logdest DEST
              Set the destination for logging.  Possible destinations are syslog:facility:level, stderr, stdout,
              or a file name.  This option overrides the logdest setting in diod.conf (5).

       -d, --debug MASK
              Set the debug mask.  The bit values are:
              0x01 - log decoded 9P protocol messages

       -c, --config-file PATH
              Set config file path.

FILES

       /usr/sbin/diod
       /etc/diod.conf

SEE ALSO

       diod.conf (5), mount.diod (8), hosts_access (5)