Upgrade OpenSSL for Linux

Upgrade OpenSSL for Linux-Linux Enterprise Application-Linux server application information. For more information, see. The default OpenSSL installed in RHEL4 is a little old, and the security report has defects. You need to upgrade it.

Upgrade procedure

0. First Use # openssl version? A. Check the OpenSSL version in the system.

1. Get the source code package 0.9.8g through # wget http://www.openssl.org/source/openssl-0.9.8g.tar.gz

2. Install openssl

# Tar? Xzvf openssl-0.9.8g.tar.gz
# Cd openssl-0.9.8g
#./Config shared zlib
# Make
# Make install
Mv/usr/bin/openssl. OFF
Mv/usr/include/openssl. OFF
Ln? S/usr/local/ssl/bin/openssl/usr/bin/openssl
Ln? S/usr/local/ssl/include/openssl/usr/include/openssl

3. Configure the library file search path

# Echo "/usr/local/ssl/lib">/etc/ld. so. conf
# Ldconfig? V

4. Check the openssl version to verify the installation.

# Openssl version? A

We can see that it is the newly installed version 0.9.8g.