use a socket file for caddy-admin main

caddy/Caddyfile

@@ -8,7 +8,7 @@
 # this machine's public IP, then replace ":80" below with your
 # domain name.
 {
-	admin 0.0.0.0:2019
+	admin unix//var/lib/caddy/.caddy-admin.sock
 }
 :80 {
 	respond "You're in limbo"

skel/.kshrc

@@ -0,0 +1,88 @@
+# skip this setup for non-interactive shells
+[[ -o interactive && -t 0 ]] || return
+
+# disable core dumps
+ulimit -c 0
+
+# Environment variables. These could go in .profile if you prefer
+export VISUAL=vi
+export EDITOR=$VISUAL
+export PAGER=less
+export GZIP=-9
+
+# set some shell options
+set -o emacs -o trackall -o globstar
+
+# specify search path for autoloadable functions
+FPATH=/usr/share/ksh/functions:~/.func
+
+# avoid certain file types in completion
+FIGNORE='@(*.o|~*)'
+
+# save more commands in history
+HISTSIZE=500
+HISTEDIT=$EDITOR
+
+# aliases for various command shortcuts
+alias ll='ls -lFb'
+alias la='ls -LaFb'
+alias pu='ps -fu $USER'
+alias md=mkdir
+alias rd=rmdir
+
+# avoid problems with long argument lists for some commands (like xargs)
+alias cp='command -x cp'  mv='command -x mv'  grep='command -x grep'
+
+# some short functions
+
+# empty line
+empty() { echo $'\e[3J'; }
+
+# man page viewer
+mere() { nroff -man -Tman $1 | ${MANPAGER:-less}; }
+
+# view/manipulate and export environment variables
+setenv() {
+        case $# in
+        0) export ;;
+        1) export "$1"= ;;
+        *) export "$1"="$2" ;;
+        esac
+    }
+
+# Use keyboard trap to map keys to other keys
+# note that escape sequences vary for different terminals so these
+# may not work for you
+trap '.sh.edchar=${keymap[${.sh.edchar}]:-${.sh.edchar}}' KEYBD
+keymap=(
+  [$'\eOD']=$'\eb'   # Ctrl-Left  -> move word left
+  [$'\eOC']=$'\ef'   # Ctrl-Right -> move word right
+  [$'\e[3~']=$'\cd'  # Delete     -> delete to right
+  [$'\e[1~']=$'\ca'  # Home       -> move to beginning of line
+  [$'\e[4~']=$'\ce'  # End        -> move to end of line
+)
+
+# keep a shortened version of the current directory for the prompt
+function _cd {
+  typeset -n dir=HOME
+
+  "cd" "$@"
+
+  if [[ $PWD = $HOME* && $HOME != / ]]; then
+    _pwd=\~${PWD#$HOME}
+    return
+  fi
+
+  for dir in JAVA_HOME GNOMEDIR; do
+    if [[ -n $dir && $PWD = $dir* ]]; then
+      _pwd="\$${!dir}${PWD#$dir}"
+      return
+    fi
+  done
+  _pwd="$PWD"
+}
+alias cd=_cd
+_cd .
+
+# put the current directory and history number in the prompt
+PS1='$_pwd [!]\$ '