diff --git a/install.sh b/install.sh
index 2ead995472..01a67bdf90 100644
--- a/install.sh
+++ b/install.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 red='\033[0;31m'
 green='\033[0;32m'
@@ -97,8 +97,22 @@ config_after_install() {
         echo -e "${yellow}面板端口设定完成${plain}"
     else
         echo -e "${red}已取消设定...${plain}"
-        echo -e "${red}如属于全新安装,默认网页端口为 ${green}54321${plain}，用户名与密码均为 ${green}admin${plain},请及时修改"
-        echo -e "${red}如属于版本升级,则保留之前设置项,登录方式保持不变,可输入x-ui后键入数字7查看登录信息${plain}"
+        if [[ ! -f "/etc/x-ui/x-ui.db" ]]; then
+            local usernameTemp=$(head -c 6 /dev/urandom | base64)
+            local passwordTemp=$(head -c 6 /dev/urandom | base64)
+            local portTemp=$(echo $RANDOM)
+            /usr/local/x-ui/x-ui setting -username ${usernameTemp} -password ${passwordTemp}
+            /usr/local/x-ui/x-ui setting -port ${portTemp}
+            echo -e "检测到您属于全新安装,出于安全考虑已自动为您生成随机用户与端口:"
+            echo -e "###############################################"
+            echo -e "${green}面板登录用户名:${usernameTemp}${plain}"
+            echo -e "${green}面板登录用户密码:${passwordTemp}${plain}"
+            echo -e "${red}面板登录端口:${portTemp}${plain}"
+            echo -e "###############################################"
+            echo -e "${red}如您遗忘了面板登录相关信息,可在安装完成后输入x-ui,输入选项7查看面板登录信息${plain}"
+        else
+            echo -e "${red}当前属于版本升级,保留之前设置项,登录方式保持不变,可输入x-ui后键入数字7查看面板登录信息${plain}"
+        fi
     fi
 }
 
diff --git a/install_en.sh b/install_en.sh
index 0faa419c74..cc532d04e5 100644
--- a/install_en.sh
+++ b/install_en.sh
@@ -97,8 +97,22 @@ config_after_install() {
         echo -e "${yellow}panel port set down!${plain}"
     else
         echo -e "${red}cancel...${plain}"
-        echo -e "${red}if this is your first time to install,the default panel port is ${green}54321${plain},username and password both are${green}admin${plain},please change them in time"
-        echo -e "${red}if this is your upgrade,keep the old settings,if you forgot you login info,you can type x-ui and then type 7 to check${plain}"
+        if [[ ! -f "/etc/x-ui/x-ui.db" ]]; then
+            local usernameTemp=$(head -c 6 /dev/urandom | base64)
+            local passwordTemp=$(head -c 6 /dev/urandom | base64)
+            local portTemp=$(echo $RANDOM)
+            /usr/local/x-ui/x-ui setting -username ${usernameTemp} -password ${passwordTemp}
+            /usr/local/x-ui/x-ui setting -port ${portTemp}
+            echo -e "this is a fresh installation,will generate random login info for security concerns:"
+            echo -e "###############################################"
+            echo -e "${green}user name:${usernameTemp}${plain}"
+            echo -e "${green}user password:${passwordTemp}${plain}"
+            echo -e "${red}web port:${portTemp}${plain}"
+            echo -e "###############################################"
+            echo -e "${red}if you forgot your login info,you can type x-ui and then type 7 to check after installation${plain}"
+        else
+            echo -e "${red} this is your upgrade,will keep old settings,if you forgot your login info,you can type x-ui and then type 7 to check${plain}"
+        fi
     fi
 }
 
diff --git a/x-ui.sh b/x-ui.sh
index d39cd2aaab..4284b540e4 100644
--- a/x-ui.sh
+++ b/x-ui.sh
@@ -519,8 +519,8 @@ ssl_cert_issue_standalone() {
     fi
     #install cert
     ~/.acme.sh/acme.sh --installcert -d ${domain} --ca-file /root/cert/ca.cer \
-        --cert-file /root/cert/${domain}.cer --key-file /root/cert/${domain}.key \
-        --fullchain-file /root/cert/fullchain.cer
+    --cert-file /root/cert/${domain}.cer --key-file /root/cert/${domain}.key \
+    --fullchain-file /root/cert/fullchain.cer
 
     if [ $? -ne 0 ]; then
         LOGE "证书安装失败,脚本退出"
@@ -604,8 +604,8 @@ ssl_cert_issue_by_cloudflare() {
             LOGI "证书签发成功,安装中..."
         fi
         ~/.acme.sh/acme.sh --installcert -d ${CF_Domain} -d *.${CF_Domain} --ca-file /root/cert/ca.cer \
-            --cert-file /root/cert/${CF_Domain}.cer --key-file /root/cert/${CF_Domain}.key \
-            --fullchain-file /root/cert/fullchain.cer
+        --cert-file /root/cert/${CF_Domain}.cer --key-file /root/cert/${CF_Domain}.key \
+        --fullchain-file /root/cert/fullchain.cer
         if [ $? -ne 0 ]; then
             LOGE "证书安装失败,脚本退出"
             rm -rf ~/.acme.sh/${CF_Domain}
@@ -816,7 +816,7 @@ show_menu() {
   ${green}17.${plain} 配置x-ui定时任务
  "
     show_status
-    echo && read -p "请输入选择 [0-16]: " num
+    echo && read -p "请输入选择 [0-17],查看面板登录信息请输入数字7:" num
 
     case "${num}" in
     0)
@@ -874,7 +874,7 @@ show_menu() {
         check_install && cron_jobs
         ;;
     *)
-        LOGE "请输入正确的数字 [0-16]"
+        LOGE "请输入正确的数字 [0-17],查看面板登录信息请输入数字7"
         ;;
     esac
 }
diff --git a/x-ui_en.sh b/x-ui_en.sh
index b220e32df7..5848646dc0 100644
--- a/x-ui_en.sh
+++ b/x-ui_en.sh
@@ -512,8 +512,8 @@ ssl_cert_issue_standalone() {
     fi
     #install cert
     ~/.acme.sh/acme.sh --installcert -d ${domain} --ca-file /root/cert/ca.cer \
-        --cert-file /root/cert/${domain}.cer --key-file /root/cert/${domain}.key \
-        --fullchain-file /root/cert/fullchain.cer
+    --cert-file /root/cert/${domain}.cer --key-file /root/cert/${domain}.key \
+    --fullchain-file /root/cert/fullchain.cer
 
     if [ $? -ne 0 ]; then
         LOGE "install certs failed,exit"
@@ -595,8 +595,8 @@ ssl_cert_issue_by_cloudflare() {
             LOGI "issue cert succeed,installing..."
         fi
         ~/.acme.sh/acme.sh --installcert -d ${CF_Domain} -d *.${CF_Domain} --ca-file /root/cert/ca.cer \
-            --cert-file /root/cert/${CF_Domain}.cer --key-file /root/cert/${CF_Domain}.key \
-            --fullchain-file /root/cert/fullchain.cer
+        --cert-file /root/cert/${CF_Domain}.cer --key-file /root/cert/${CF_Domain}.key \
+        --fullchain-file /root/cert/fullchain.cer
         if [ $? -ne 0 ]; then
             LOGE "install cert failed,exit"
             rm -rf ~/.acme.sh/${CF_Domain}
@@ -664,7 +664,7 @@ show_menu() {
   ${green}16.${plain} issuse certs
  "
     show_status
-    echo && read -p "please input a legal number[0-16]: " num
+    echo && read -p "please input a legal number[0-16],input 7 for checking login info:" num
 
     case "${num}" in
     0)
@@ -719,7 +719,7 @@ show_menu() {
         ssl_cert_issue
         ;;
     *)
-        LOGE "please input a legal number[0-16]"
+        LOGE "please input a legal number[0-16],input 7 for checking login info"
         ;;
     esac
 }