enable ssh forwarding

i3/config

@@ -249,7 +249,7 @@ assign [class="^jetbrains-.*$"] workspace number $ws4
 # start a terminal
 assign [class="^st$"] workspace number $ws5
 bindsym $mod+Control+5 workspace $ws5 ; exec exec st -t "Simple Terminal (Local)" -e $SHELL -ic 'go_tmux -x'
-bindsym $mod+Control+Shift+5 workspace $ws5 ; exec exec st -t "Simple Terminal (Gubal)" -e $SHELL -ic 'exec ssh gubal'
+bindsym $mod+Control+Shift+5 workspace $ws5 ; exec exec st -t "Simple Terminal (Gubal)" -e $SHELL -ic 'exec ssh tmux.gubal'
 bindsym $mod+Return workspace $ws5 ; exec exec st -t "Simple Terminal (Local)" -e $SHELL -ic 'go_tmux -x'
 
 # open a file manager

ssh/config

@@ -1,17 +1,22 @@
 AddKeysToAgent yes
 VisualHostKey yes
 
+Host git git.reya.zone gubal gubal.reya.zone *.gubal.reya.zone *.gubal
+  StrictHostKeyChecking yes
+  Port 38922
+
 Host gubal gubal.reya.zone *.gubal.reya.zone *.gubal
+  Hostname gubal.reya.zone
+
+Host tmux.gubal
   SendEnv TZ LANG LANGUAGE LC_*
   ForwardAgent yes
-  StrictHostKeyChecking yes
+  ForwardX11 yes
-  Hostname gubal.reya.zone
+  ForwardX11Timeout 0
-  Port 38922
+  ForwardX11Trusted no
   RemoteCommand zsh -ic 'go_tmux -x'
   RequestTTY yes
 
 Host git git.reya.zone
   User git
-  StrictHostKeyChecking yes
   Hostname git.reya.zone
-  Port 38922

ssh/rc

@@ -8,3 +8,15 @@ if [ -n "$SSH_AUTH_SOCK" ]; then
   ln -sf "$SSH_AUTH_SOCK" ~/.ssh/ssh_auth_sock
   export SSH_AUTH_SOCK=~/.ssh/ssh_auth_sock
 fi
+
+# example sshrc file
+if read proto cookie && [ -n "$DISPLAY" ]; then
+    if [ `echo $DISPLAY | cut -c1-10` = 'localhost:' ]; then
+        # X11UseLocalhost=yes
+        echo add unix:`echo $DISPLAY |
+            cut -c11-` $proto $cookie
+    else
+        # X11UseLocalhost=no
+        echo add $DISPLAY $proto $cookie
+    fi | xauth -q -
+fi