OpenSSH怎么更新升级到8.0

    xiaoxiao2022-07-02  115

    1.安装必要组件:

    yum install -y gcc openssl-devel pam-devel rpm-build

    2.下载OpenSSH最新版本:

    https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/ 在以上网站找到最新版链接并下载解压 wget https://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-8.0p1.tar.gz tar -zxvf openssh-8.0p1.tar.gz

    3.到openssh-7.5p1目录下编译并安装最新版OpenSSH:

    ./configure --prefix=/usr --sysconfdir=/etc/ssh --with-pam --with-zlib --with-md5-passwords --with-tcp-wrappers 如果没报错则执行安装命令 make && make install

    4.查看OpenSSH版本信息

    ssh -V

    5.修改配置

    去掉此行#,如果想远程能够远程登录root用户 #PermitRootLogin yes

    6.重启并处理异常

    service sshd restart 如果出现以下异常 /etc/ssh/sshd_config line 81: Unsupported option GSSAPIAuthentication /etc/ssh/sshd_config line 83: Unsupported option GSSAPICleanupCredentials 则注释掉相关行数即可。

    第二种方法:

    查看当前版本

    # 默认ssh是7.4,ssl是1.0.2

    sshd -v

    openssl version

    下载升级包

    wget https://www.openssl.org/source/openssl-1.1.1g.tar.gz

    wget https://openbsd.hk/pub/OpenBSD/OpenSSH/portable/openssh-8.3p1.tar.gz

    tar -zxvf openssl-1.1.1g.tar.gz

    tar -zxvf openssh-8.3p1.tar.gz

    安装依赖包

    yum install -y gcc

     

    升级OpenSSL

    # 备份

    mv /usr/bin/openssl /usr/bin/openssl.bak

    # 编译、安装

    cd openssl-1.1.1g

    ./config shared && make && make install

    cp -r include/openssl /usr/include/

    ln -s /usr/local/bin/openssl /usr/bin/openssl

    ln -snf /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so

    ln -snf /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1

    ln -snf /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so

    ln -snf /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1

    # 重载库文件,检查版本

    ldconfig

    openssl version

    升级OpenSSH

    # 备份

    cp /usr/bin/ssh /usr/bin/ssh.bak

    cp /usr/sbin/sshd /usr/sbin/sshd.bak

    mv /etc/ssh /etc/ssh.bak

    # 编译、安装

    cd openssh-8.3p1

    ./configure --prefix=/usr/ --sysconfdir=/etc/ssh --with-ssl-dir=/usr/local/ssl --with-zlib --with-md5-passwords

    make && make install

    !!!!一定要加!!!!

    vim /etc/ssh/sshd

    PermitRootLogin yes

    # 修改启动文件和pam

    cp ./contrib/redhat/sshd.init /etc/init.d/sshd

    cp -a contrib/redhat/sshd.pam /etc/pam.d/sshd.pam

    mv /usr/lib/systemd/system/sshd.service /usr/lib/systemd/system/sshd.service_bak

    systemctl daemon-reload

    systemctl restart sshd

    systemctl status sshd

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