diff --git a/files/akb.netz/homedirs/DEFAULT/_bashrc b/files/akb.netz/homedirs/DEFAULT/_bashrc
index 667b0d0..f0fbbda 100644
--- a/files/akb.netz/homedirs/DEFAULT/_bashrc
+++ b/files/akb.netz/homedirs/DEFAULT/_bashrc
@@ -116,3 +116,9 @@ export EDITOR=vim
 
 # turn off the beep (only in bash tab-complete ?)
 bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/akb.netz/homedirs/chris/_bashrc b/files/akb.netz/homedirs/chris/_bashrc
index f5ae91f..d969ad5 100644
--- a/files/akb.netz/homedirs/chris/_bashrc
+++ b/files/akb.netz/homedirs/chris/_bashrc
@@ -118,3 +118,8 @@ export EDITOR=vim
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
 
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/anw-kb.netz/homedirs/DEFAULT/_bashrc b/files/anw-kb.netz/homedirs/DEFAULT/_bashrc
index 3641e19..d969ad5 100644
--- a/files/anw-kb.netz/homedirs/DEFAULT/_bashrc
+++ b/files/anw-kb.netz/homedirs/DEFAULT/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/flr.netz/homedirs/DEFAULT/_bashrc b/files/flr.netz/homedirs/DEFAULT/_bashrc
index 3641e19..d969ad5 100644
--- a/files/flr.netz/homedirs/DEFAULT/_bashrc
+++ b/files/flr.netz/homedirs/DEFAULT/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/flr.netz/homedirs/chris/_bashrc b/files/flr.netz/homedirs/chris/_bashrc
index 3641e19..d969ad5 100644
--- a/files/flr.netz/homedirs/chris/_bashrc
+++ b/files/flr.netz/homedirs/chris/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/mbr-bln.netz/homedirs/DEFAULT/_bashrc b/files/mbr-bln.netz/homedirs/DEFAULT/_bashrc
index 3641e19..d969ad5 100644
--- a/files/mbr-bln.netz/homedirs/DEFAULT/_bashrc
+++ b/files/mbr-bln.netz/homedirs/DEFAULT/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/sprachenatelier.netz/homedirs/DEFAULT/_bashrc b/files/sprachenatelier.netz/homedirs/DEFAULT/_bashrc
index 3641e19..d969ad5 100644
--- a/files/sprachenatelier.netz/homedirs/DEFAULT/_bashrc
+++ b/files/sprachenatelier.netz/homedirs/DEFAULT/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1
diff --git a/files/sprachenatelier.netz/homedirs/chris/_bashrc b/files/sprachenatelier.netz/homedirs/chris/_bashrc
index 3641e19..d969ad5 100644
--- a/files/sprachenatelier.netz/homedirs/chris/_bashrc
+++ b/files/sprachenatelier.netz/homedirs/chris/_bashrc
@@ -117,3 +117,9 @@ export EDITOR=vim
 # turn off the beep (only in bash tab-complete ?)
 # only if interactiv shell
 [[ "$-" =~ "i" ]] && bind 'set bell-style none'
+
+# Workaround für cssh/Perl-Tk unter Wayland: "Authorization required, but
+# no authorization protocol specified" (Debian Bug #1028370). Erlaubt dem
+# lokalen User pauschalen X11-Zugriff, ohne fehlerhaftes Cookie-Verfahren.
+#
+#xhost +SI:localuser:$(whoami) >/dev/null 2>&1