From f4db71a552248bf7fa1c78ac527b5faea1f231cd Mon Sep 17 00:00:00 2001
From: ubuntu <zhangkun9038@dingtalk.com>
Date: Tue, 11 Mar 2025 08:52:19 +0800
Subject: [PATCH] diff dns

---
 backUpDB.sh | 18 ++++++++----------
 checkDns.sh | 13 +++++++++++++
 diffDns.sh  | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 10 deletions(-)
 create mode 100755 checkDns.sh
 create mode 100755 diffDns.sh

diff --git a/backUpDB.sh b/backUpDB.sh
index 8f74afc..4b979ad 100755
--- a/backUpDB.sh
+++ b/backUpDB.sh
@@ -3,8 +3,8 @@
 dbUser=$1
 dbPassword=$2
 dbHost=$3
-dbName=$5
 dbPort=$4
+dbName=$5
 backUpPath=$6
 ossPath=$7
 hostName=$(echo $HOSTNAME)
@@ -12,28 +12,26 @@ hostName=$(echo $HOSTNAME)
 PATH=PATH:/usr/bin:/usr/sbin:/usr/local/bin
 
 check_port() {
-    nc -z -w5 $dbHost $dbPort
+  nc -z -w5 $dbHost $dbPort
 }
 
 cd /tmp
 rm ${hostName}_${dbName}.sql_bak3.tar.gz -f || true
-mv ${hostName}_${dbName}.sql_bak2.tar.gz ${hostName}_${dbName}.sql_bak3.tar.gz -f  || true
+mv ${hostName}_${dbName}.sql_bak2.tar.gz ${hostName}_${dbName}.sql_bak3.tar.gz -f || true
 mv ${hostName}_${dbName}.sql_bak1.tar.gz ${hostName}_${dbName}.sql_bak2.tar.gz -f || true
 mv ${hostName}_${dbName}.sql.tar.gz ${hostName}_${dbName}.sql_bak1.tar.gz -f || true
 
 sed -i 's/lower_case_table_names=1/lower_case_table_names=0/g' /root/mysql/conf/append.cnf
 if check_port; then
-    echo "端口 $dbPort 是活跃的，一切正常。"
+  echo "端口 $dbPort 是活跃的，一切正常。"
 else
-    echo "警告：端口 $dbPort 不活跃，请检查数据库连接。"
-    docker restart maria
-    sleep 10
+  echo "警告：端口 $dbPort 不活跃，请检查数据库连接。"
+  docker restart maria
+  sleep 10
 fi
-/usr/bin/mysqldump -R --opt --protocol=TCP --user="${dbUser}" --password="${dbPassword}" --host="${dbHost}" --port=${dbPort} ${dbName}  > /tmp/${hostName}_${dbName}.sql
+/usr/bin/mysqldump -R --opt --protocol=TCP --user="${dbUser}" --password="${dbPassword}" --host="${dbHost}" --port=${dbPort} ${dbName} >/tmp/${hostName}_${dbName}.sql
 sed -i 's/lower_case_table_names=0/lower_case_table_names=1/g' /root/mysql/conf/append.cnf
 
-
-
 rm sql -fr || true
 mkdir sql
 mv ${hostName}_${dbName}.sql sql
diff --git a/checkDns.sh b/checkDns.sh
new file mode 100755
index 0000000..5d5be78
--- /dev/null
+++ b/checkDns.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# 检查参数个数是否正确
+if [ $# -ne 2 ]; then
+    echo "用法: $0 <域名> <DNS服务器地址>"
+    exit 1
+fi
+
+domain="$1"
+dns_server="$2"
+
+# 使用dig命令查询域名对应的IP地址，并过滤结果只保留IP地址
+dig +short "$domain" @$dns_server | grep -E "^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$"
diff --git a/diffDns.sh b/diffDns.sh
new file mode 100755
index 0000000..4966587
--- /dev/null
+++ b/diffDns.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# 检查参数个数是否正确
+if [ $# -ne 3 ]; then
+    echo "用法: $0 <域名> <DNS服务器地址1> <DNS服务器地址2>"
+    exit 1
+fi
+
+domain="$1"
+dns_server1="$2"
+dns_server2="$3"
+
+# 调用checkDns.sh获取第一个DNS服务器解析的所有IP地址
+result1=$(./checkDns.sh "$domain" "$dns_server1")
+# 调用checkDns.sh获取第二个DNS服务器解析的所有IP地址
+result2=$(./checkDns.sh "$domain" "$dns_server2")
+
+# 获取result1的第一个IP地址
+first_ip_result1=$(echo "$result1" | head -n 1)
+
+# 检查result1的第一个IP地址是否包含在result2中
+if echo "$result2" | grep -q "^$first_ip_result1$"; then
+    echo "result1的第一个IP地址包含在result2的结果集合中"
+else
+    echo "result1的第一个IP地址不包含在result2的结果集合中，执行指定命令"
+    # 在这里替换成你实际要执行的命令，比如：
+    # some_command arg1 arg2
+fi
+
+# 输出第一个DNS服务器解析的所有IP地址
+echo "DNS服务器 $dns_server1 解析的IP地址:"
+echo "$result1"
+
+# 输出第二个DNS服务器解析的所有IP地址
+echo "DNS服务器 $dns_server2 解析的IP地址:"
+echo "$result2"