centos 6&7 升级openssh

1.查看现在的版本

# rpm -qa | grep openssh
openssh-clients-6.6.1p1-22.el7.x86_64
openssh-server-6.6.1p1-22.el7.x86_64
openssh-6.6.1p1-22.el7.x86_64

　

2.下载新版本的openssh

cd /usr/src
wget http://mirrors.evowise.com/pub/OpenBSD/OpenSSH/portable/openssh-7.4p1.tar.gz
tar -xvzf openssh-7.4p1.tar.gz

　　

3.安装辅助包

yum install rpm-build gcc make wget openssl-devel krb5-devel pam-devel libX11-devel xmkmf libXt-devel

　　

4.创建对应目录

mkdir -p /root/rpmbuild/{SOURCES,SPECS}
cp ./openssh-7.5p1/contrib/redhat/openssh.spec /root/rpmbuild/SPECS/
cp openssh-7.5p1.tar.gz /root/rpmbuild/SOURCES/
cd /root/rpmbuild/SPECS/

　　

5.修改

sed -i -e "s/%define no_gnome_askpass 0/%define no_gnome_askpass 1/g" openssh.spec
sed -i -e "s/%define no_x11_askpass 0/%define no_x11_askpass 1/g" openssh.spec
sed -i -e "s/BuildPreReq/BuildRequires/g" openssh.spec

　　

6.build rpm

rpmbuild -bb openssh.spec

7.查看生成的rpm

# cd /root/rpmbuild/RPMS/x86_64/
# ll
total 2112
-rw-r--r-- 1 root root 758392 Jun 17 15:27 openssh-7.5p1-1.x86_64.rpm
-rw-r--r-- 1 root root 945325 Jun 17 15:27 openssh-clients-7.5p1-1.x86_64.rpm
-rw-r--r-- 1 root root 452499 Jun 17 15:27 openssh-server-7.5p1-1.x86_64.rpm

　　

8.升级

# rpm -Uvh *.rpm
Preparing...                ########################################### [100%]
   1:openssh                ########################################### [ 33%]
   2:openssh-clients        ########################################### [ 67%]
   3:openssh-server         ########################################### [100%]

　　

9.查看

# ssh -V
OpenSSH_7.5p1, OpenSSL 1.0.1e-fips 11 Feb 2013
# rpm -qa | grep openssh
openssh-clients-7.5p1-1.x86_64
openssh-7.5p1-1.x86_64
openssh-server-7.5p1-1.x86_64