35 lines
821 B
Markdown
35 lines
821 B
Markdown
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# Raspberry Pi 4B Ubuntu 开启 SSH
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在 Ubuntu 系统下，SSH 服务由 openssh-server 包提供，可使用 APT 命令安装。
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```bash
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sudo apt install openssh-server
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```
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安装成功后，编辑 /etc/ssh/sshd_config 文件，开启如下选项，其他保持默认：
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```bash
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Port 22
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HostKey /etc/ssh/ssh_host_rsa_key
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HostKey /etc/ssh/ssh_host_ecdsa_key
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HostKey /etc/ssh/ssh_host_ed25519_key
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PermitEmptyPasswords no
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UsePAM yes
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TCPKeepAlive yes
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Subsystem sftp internal-sftp
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```
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配置完毕，可使用如下命令开启/停止 SSH 服务：
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```bash
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# 启动 SSH 服务
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sudo systemctl start sshd.service
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# 使能 SSH 服务（每次开机后自动启动服务）
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sudo systemctl enable sshd.service
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# 停止 SSH 服务
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sudo systemctl stop sshd.service
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# 禁能 SSH 服务
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sudo systemctl disable sshd.service
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```
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