X-Git-Url: https://git.cworth.org/git?p=obsolete%2Fnotmuch-wiki;a=blobdiff_plain;f=remoteusage%2Faboriginal.mdwn;h=ef462dfee9159c60e757ec330b45a2016781e5a8;hp=540381b752913109112f8140ba7cd1054a5bfcdd;hb=dee880643fd8d50e6c67bda0b8a43d37545efb5b;hpb=264ce3866a61e26da9b644a522cd9e857ac94c7b diff --git a/remoteusage/aboriginal.mdwn b/remoteusage/aboriginal.mdwn index 540381b..ef462df 100644 --- a/remoteusage/aboriginal.mdwn +++ b/remoteusage/aboriginal.mdwn @@ -7,7 +7,11 @@ other requirements and general information. This solution uses one pre-made ssh connection where the client is put into "master" mode (-M) for connection sharing. The wrapper script then uses the control socket created by this pre-made ssh connection for -its own connection. +its own connection. As long as master ssh connection is live, slave +can use it. Disconnecting master all future attempts to connect +from the script will fail. + +## The script Write the following code to a file, for example `remote-notmuch.sh`. There is just one line to that normally needs configuration: @@ -16,8 +20,6 @@ There is just one line to that normally needs configuration: the options howto are presented after the script. -## The script - #!/bin/bash # http://notmuchmail.org/remoteusage/aboriginal/ @@ -55,6 +57,11 @@ the options howto are presented after the script. echo " See`sed '1d;2d;s/.//;q' "$0"` for help." +Note the `0.1` in ssh command line. It is used to avoid any opportunistic +behaviour ssh might do; for example if control socket is not alive ssh +would attempt to do it's own ssh connection to remote ssh server. As +address `0.1` is invalid this attempt will fail early. + ## Test Easiest way to test this script is to run the pre-made ssh connection @@ -72,7 +79,7 @@ case shell never expand it to `$HOME` -- ssh does it by not reading `$HOME` but checking the real user home directory from `/etc/passewd`. For security purposes this is just how it should be. -## Tunkkaa +## Tune The path `'~'/.ssh/master-user@host:22` might look too generic to be used as is as the control socket after initial testing (but it can