记一次Centos7.5升级OpenSSH8.0p1

# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core)

# ssh -V
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips  26 Jan 2017

# ssh -V
OpenSSH_8.0p1, OpenSSL 1.0.2k-fips  26 Jan 2017

# yum install -y telnet-server
# yum install -y xinetd
# systemctl start telnet.socket
# systemctl start  xinetd

# echo 'pts/0' >>/etc/securetty
# echo 'pts/1' >>/etc/securetty
# systemctl restart telnet.socket

# systemctl enable xinetd.service
# systemctl enable telnet.socket

# cp -r /etc/ssh /etc/ssh.old

# rpm -qa|grep openssh
openssh-server-7.4p1-11.el7.x86_64
openssh-7.4p1-11.el7.x86_64
openssh-clients-7.4p1-11.el7.x86_64
# rpm -e --nodeps openssh-server-7.4p1-11.el7.x86_64
# rpm -e --nodeps openssh-7.4p1-11.el7.x86_64
# rpm -e --nodeps openssh-clients-7.4p1-11.el7.x86_64
# rpm -qa|grep openssh

# install -v -m700 -d /var/lib/sshd
# chown -v root:sys /var/lib/sshd
# groupadd -g 50 sshd
# useradd -c 'sshd PrivSep' -d /var/lib/sshd -g sshd -s /bin/false -u 50 sshd
# tar -zxvf openssh-8.0p1.tar.gz
# cd openssh-8.0p1
# ./configure --prefix=/usr --sysconfdir=/etc/ssh --with-md5-passwords --with-privsep-path=/var/lib/sshd
# make
# chmod 600 /etc/ssh/ssh_host_rsa_key
# chmod 600 /etc/ssh/ssh_host_ecdsa_key
# chmod 600 /etc/ssh/ssh_host_ed25519_key
# make install
# install -v -m755 contrib/ssh-copy-id /usr/bin
# install -v -m644 contrib/ssh-copy-id.1 /usr/share/man/man1
# install -v -m755 -d /usr/share/doc/openssh-8.0p1
# install -v -m644 INSTALL LICENCE OVERVIEW README* /usr/share/doc/openssh-8.0p1

# echo "PermitRootLogin yes" >> /etc/ssh/sshd_config

# cp -p contrib/redhat/sshd.init /etc/init.d/sshd
# chmod +x /etc/init.d/sshd
# chkconfig --add sshd
# chkconfig sshd on
# chkconfig --list sshd
# systemctl restart sshd

# ssh -V
OpenSSH_8.0p1, OpenSSL 1.0.2k-fips  26 Jan 2017

# yum -y install openssh-clients
# yum -y install openssh-server
# yum -y install openssh