diff --git a/cello-install.sh b/cello-install.sh
old mode 100644
new mode 100755
diff --git a/debian-config.sh b/debian-config.sh
index 76db1ea..bbea161 100755
--- a/debian-config.sh
+++ b/debian-config.sh
@@ -53,6 +53,7 @@ chown $NewUser:$NewUser /home/$NewUser
 chmod 700 /home/$NewUser
 echo
 
+# 注意，在这里为新用户创建的配置文件，主人是 root.
 echo "<<< Configure $NewUser home"
 source /faronear/fon/sysconfig/home-config.sh /faronear/fon/sysconfig/nixhome /home/$NewUser
 echo
diff --git a/docker-install.sh b/docker-install.sh
old mode 100644
new mode 100755
diff --git a/git-clone-all.sh b/git-clone-all.sh
old mode 100644
new mode 100755
diff --git a/home-config.sh b/home-config.sh
index e967e20..79c68fe 100755
--- a/home-config.sh
+++ b/home-config.sh
@@ -42,17 +42,6 @@ then
     ln -s $SourcePath/$homescript $HomePath
   done
   popd
-  mkdir -p $HomePath/.ssh
-  chmod 700 $HomePath/.ssh
-  echo "--- Adding $SourcePath/authorized_keys to $HomePath/.ssh/authorized_keys ..."
-  cat $SourcePath/authorized_keys >> $HomePath/.ssh/authorized_keys
-  # if [ -e $HomePath/.ssh/authorized_keys ]
-  # then
-  #   echo "--- Renaming $HomePath/.ssh/authorized_keys to authorized_keys.backup ..."
-  #   mv $HomePath/.ssh/authorized_keys $HomePath/.ssh/authorized_keys.backup
-  # fi
-  # echo "--- Linking $SourcePath/authorized_keys to $HomePath/.ssh/authorized_keys ..."
-  # ln -s $SourcePath/authorized_keys $HomePath/.ssh/authorized_keys
 else
   echo "!!! Not existing $SourcePath or $HomePath, please try again."
 fi
diff --git a/nixhome/authorized_keys b/nixhome/authorized_keys
deleted file mode 100644
index 86d039c..0000000
--- a/nixhome/authorized_keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-rsa 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 luk.lu@DoomBase