OpenSSH RPMs for old CentOS

For some reasons I have to maintain OpenSSH up to date for CentOSs that are no longer have supports.

This openssh package has OpenSSL statically linked.

Current Version:

OpenSSH 9.0p1
OpenSSL 1.1.1q

Supported CentOS:

CentOS 5
CentOS 6
CentOS 7

Build Requirements:

yum groupinstall -y "Development Tools"
yum install -y imake rpm-build pam-devel krb5-devel zlib-devel libXt-devel libX11-devel gtk2-devel

for CentOS5:

Perl 5.10+ is needed (just ./configure.gnu && make && make install)
gcc44 is prefered

Usage

# Edit version.env file if you want a specific version of openssh/openssl combination (or maybe I havn't updated to the latest).

# this script try to download source packages.
# if any error come up, just manally put the source tar file into the `downloads` dir.
./pullsrc.sh

# just run the script to build RPMs. 
# For CentOS 5, the rpmbuild didn't set the variable of `.el`, you may need to run the script by `./compile.sh el5`
./compile.sh

Security

As OLD systems that are still on production, TOP security is hardly the first concern, while compatibility is.

This package provede the following options in /etc/ssh/sshd_config to act like the triditional version sshd.

PubkeyAcceptedAlgorithms +ssh-rsa
UsePAM yes
PermitRootLogin yes
UseDNS no