shell/env: Use test instead of [ and $HOME instead of ~.

[config/dotfiles.git] / ssh_config

diff --git a/ssh_config b/ssh_config
index 9dc5150803fdb0c04ed89778233d7b85d5c4e218..62babfce373192a98a322c11f2018991b53df91d 100644 (file)
--- a/ssh_config
+++ b/ssh_config
@@ -15,6 +15,13 @@
 # You should have received a copy of the GNU General Public License
 # along with this file.  If not, see <http://www.gnu.org/licenses/>.
 
+# Undocumented (and not very well tested) feature. This drops the connection
+# after 5 seconds of inactivity. Thanks to shad0VV in #openssh on Freenode
+# (2012-11-04 18:40 CET) for telling me about this undocumented feature.
+#
+#     ServerAliveCountMax 0
+#     ServerAliveInterval 5
+
 
 # Rules for all hosts.
 Host *
@@ -29,8 +36,9 @@ Host *
 # to local X11!
     ForwardX11Trusted no
 
-# If -M is used store the control master socket in ~/.ssh. Necessary for
-# ControlMaster to work.
+# Allow using -M (ControlMaster) to create a master SSH session which
+# "tunnels" other connections to the same host, thus reducing the number of
+# authentications (which are relatively slow) and TCP connections.
     ControlPath ~/.ssh/master-%l-%h-%p-%r
 
 # Abort if not all requested port forwardings can be set up.