29 lines
1.2 KiB
Bash
29 lines
1.2 KiB
Bash
#!/bin/bash
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# 1. 备份原始配置，防止改错
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sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak
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echo "已备份原始配置到 /etc/ssh/sshd_config.bak"
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# 2. 修改 ListenAddress 确保监听所有接口 (0.0.0.0)
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# 这一步解决“只能局域网连，外部连不上”的监听问题
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sudo sed -i 's/^#ListenAddress 0.0.0.0/ListenAddress 0.0.0.0/' /etc/ssh/sshd_config
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sudo sed -i 's/^ListenAddress ::/#ListenAddress ::/' /etc/ssh/sshd_config
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# 3. 允许密码登录 (确保没有被禁用)
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sudo sed -i 's/^PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config
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sudo sed -i 's/^#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config
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# 4. 允许 Root 登录 (可选，视你的安全需求而定)
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# 如果你需要远程用 root 登录，请取消下面这行的注释
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# sudo sed -i 's/^#PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config
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# 5. 检查配置文件语法是否正确
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sudo sshd -t
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if [ $? -eq 0 ]; then
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echo "配置检查通过，正在重启 SSH 服务..."
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sudo systemctl restart ssh
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echo "修复完成！现在 SSH 应该可以接收来自所有接口的连接了。"
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else
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echo "配置文件修改有误，请检查！"
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exit 1
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fi |