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Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 60 |
1 files changed, 33 insertions, 27 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 812d08a8ef..6b5b8bf6f8 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -14394,18 +14394,21 @@ Whether to enable password-based authentication. @cindex AutoSSH @deffn {Scheme Variable} autossh-service-type This is the type for the @uref{https://www.harding.motd.ca/autossh, -AutoSSH} program that runs a copy of @code{ssh} and monitors it, +AutoSSH} program that runs a copy of @command{ssh} and monitors it, restarting it as necessary should it die or stop passing traffic. -AutoSSH can be run manually from the commandline by passing arguments to -the binary @code{autossh} from the package @code{autossh}, but it can -also be run as a guix service. This latter usecase is documented here. +AutoSSH can be run manually from the command-line by passing arguments +to the binary @command{autossh} from the package @code{autossh}, but it +can also be run as a Guix service. This latter use case is documented +here. -AutoSSH can be used to forward local traffic to a remote machine using an SSH tunnel, -and it respects the @file{~/.ssh/config} of the user it is run as. +AutoSSH can be used to forward local traffic to a remote machine using +an SSH tunnel, and it respects the @file{~/.ssh/config} of the user it +is run as. -For example, to specify a service running autossh as the user @code{pino} -and forwarding all local connections to port @code{8081} to @code{remote:8081} -using an SSH tunnel, add this call to the operating system's @code{services} field: +For example, to specify a service running autossh as the user +@code{pino} and forwarding all local connections to port @code{8081} to +@code{remote:8081} using an SSH tunnel, add this call to the operating +system's @code{services} field: @lisp (service autossh-service-type @@ -14428,18 +14431,19 @@ This assumes that the specified user exists. Specifies the connection poll time in seconds. @item @code{first-poll} (default @code{#f}) -Specifies how long autossh waits before the first connection test in seconds. -After this first test, polling is resumed at the pace defined in @code{poll}. -When set to @code{#f}, the first poll is not treated specially and -will also use the connection poll specified in @code{poll} +Specifies how many seconds AutoSSH waits before the first connection +test. After this first test, polling is resumed at the pace defined in +@code{poll}. When set to @code{#f}, the first poll is not treated +specially and will also use the connection poll specified in +@code{poll}. @item @code{gate-time} (default @code{30}) -Specifies (in seconds) how long an SSH connection must be active -before it is considered successful. +Specifies how many seconds an SSH connection must be active before it is +considered successful. @item @code{log-level} (default @code{1}) -The log level, corresponding to the levels used by syslog -(so @code{0} is the most silent while @code{7} is the chattiest.) +The log level, corresponding to the levels used by syslog---so @code{0} +is the most silent while @code{7} is the chattiest. @item @code{max-start} (default @code{#f}) The maximum number of times SSH may be (re)started before AutoSSH exits. @@ -14449,18 +14453,20 @@ When set to @code{#f}, no maximum is configured and AutoSSH may restart indefini The message to append to the echo message sent when testing connections. @item @code{port} (default @code{"0"}) -The ports used for monitoring the connection. When set to @code{"0"}, -monitoring is disabled. When set to @code{"n"} where @code{n} is a positive integer, -ports @code{n} and @code{n+1} are used for monitoring the connection, such that -port @code{n} is the base monitoring port and @code{n+1} is the echo port. -When set to @code{"n:m"} where @code{n} and @code{m} are positive integers, -the ports @code{n} and @code{n+1} are used for monitoring the connection, such -that port @code{n} is the base monitoring port and @code{m} is the echo port. +The ports used for monitoring the connection. When set to @code{"0"}, +monitoring is disabled. When set to @code{"@var{n}"} where @var{n} is +a positive integer, ports @var{n} and @var{n}+1 are used for +monitoring the connection, such that port @var{n} is the base +monitoring port and @code{n+1} is the echo port. When set to +@code{"@var{n}:@var{m}"} where @var{n} and @var{m} are positive +integers, the ports @var{n} and @var{n}+1 are used for monitoring the +connection, such that port @var{n} is the base monitoring port and +@var{m} is the echo port. @item @code{ssh-options} (default @code{'()}) -The list of commandline arguments to pass to ssh when it is run. -Options @code{-f} and @code{-M ....} are reserved for AutoSSH -and may cause undefined behaviour. +The list of command-line arguments to pass to @command{ssh} when it is +run. Options @option{-f} and @option{-M} are reserved for AutoSSH and +may cause undefined behaviour. @end table @end deftp |