diff --git a/security.sh b/security.sh
new file mode 100644
index 0000000..abd67ce
--- /dev/null
+++ b/security.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+##########	安全设置脚本	##########
+
+read -p "修改主机名（留空则不修改，请直接回车）：" myhostname
+read -p "修改SSH端口：" sshport
+
+if [ "$myhostname" != '' ]
+then
+	sudo hostnamectl set-hostname ${myhostname}
+if [ "$sshport" != '' ]
+	then
+	#删除SSH端口
+	sed -i '/^#Port/'d /etc/ssh/sshd_config
+	sed -i '/^Port/'d /etc/ssh/sshd_config
+	#添加端口
+	sed -i "/^#AddressFamily/i\Port ${sshport}" /etc/ssh/sshd_config
+	#重载服务
+	service sshd restart
+	echo "修改完成."
+else
+	exit
+fi
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