diff --git a/bootstrap.sh b/bootstrap.sh
index 0c3e2233b753942db60ef87eaf2b418f88037273..61e0fea884d3665fdd8ec3c84f40467fc618b8e8 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -147,7 +147,7 @@ function boot_wsl(){
     mv -f ~/.ssh/config ~/.ssh/config.bck
   fi
   rm -f ~/.ssh/config
-  yes | cp -f $PWD/src/config_wsl ~/.ssh/config &>/dev/null
+  yes | cp -f $PWD/src/ssh.config ~/.ssh/config &>/dev/null
 }
 
 function --help(){
diff --git a/bootstrap_remote.sh b/bootstrap_remote.sh
index 4bc71fbc1505244cab93b65d1050051e4e84099f..bfef4fb6954c78fc569b19251ff0fa5307999401 100755
--- a/bootstrap_remote.sh
+++ b/bootstrap_remote.sh
@@ -40,7 +40,7 @@ else
       ;;
     *)
       remote_command=$1
-      echo -e "Executing \e[31m$remote_command\e[0m ..."
+      echo -e "Command to execute \e[31m$remote_command\e[0m ..."
       ;;
   esac
 fi
diff --git a/src/config_wsl b/src/ssh.config
similarity index 90%
rename from src/config_wsl
rename to src/ssh.config
index 85e57de02808c30dd5a13a0ae2a046a04f725130..a71915efe46857b80bd379e49aa148d8054451b0 100644
--- a/src/config_wsl
+++ b/src/ssh.config
@@ -5,7 +5,6 @@ ControlMaster auto
 ControlPersist 5
 ForwardX11 yes
 ForwardX11Trusted yes
-PreferredAuthentications publickey,keyboard-interactive,password
 
 Host ihep.cc
   User root
diff --git a/tools/setdocker.py b/tools/setdocker.py
index 5fb05982d46b97be752ad76383317c07fad82935..a95b7ba24756b794d7f9a5e5d66def8673406e9a 100755
--- a/tools/setdocker.py
+++ b/tools/setdocker.py
@@ -1,8 +1,7 @@
 #!/usr/bin/python3
 import json
 import argparse
-import os, sys
-import copy
+import os
 
 parser = argparse.ArgumentParser()
 parser.add_argument("--proxy", type = str, default = "http://192.168.32.92:7890")
diff --git a/tools/setsettings.py b/tools/setsettings.py
index ae2fd2ead5bece97f3ce92bc75c1862db524ad60..b9bba1793bb0daf592466a24390a70cee7adffd7 100755
--- a/tools/setsettings.py
+++ b/tools/setsettings.py
@@ -1,7 +1,6 @@
 #!/usr/bin/python3
 import json
-import os, sys
-import copy
+import sys
 
 def merge_list(old_list, new_list):
     merged_list = old_list + new_list