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Today, I will talk to you about how to carry out CentOS5.1 remote control upgrade installation ssl configuration compilation, many people may not quite understand, in order to let you know more, the editor summarized the following, I hope you can get something according to this article.

CentOS5.1 remotely upgrade ssh to 5.0p1 because the server is in the computer room, so you cannot delete the ssh and then reinstall it. You can only upgrade the installation.

1. Look at the current version of ssh

Ssh-V is 4.5, * is 5.0p1.

two。 Go to the official download package.

Then. / configure-- prefix=/usr-- with-pam-- with-md5-passwords-- sysconfdir=/etc/ssh found that always Can't find recent OpenSSL libcrypto simply upgraded ssl.

3. Upgrade ssl

Take a look at the next version of openssl version-aOpenSSL 0.9.8b 04 May 2006 download * download zlib-1.2.3.tar.gz and install tar-zxvf zlib-1.2.3.tar.gz cd zlib-1.2.3./configure-- shared don't forget the parameter shared. Make make install

CentOS5.1 remote upgrade installation ssl tar-zxvf openssl-0.9.8h.tar.gz cd openssl-0.9.8h./config shared must take the shared parameter make make test make install so that the ssl is installed in / usr/local/ssl to replace the system's sslfind /-name openssl/usr/bin/openssl (original)

/ usr/lib/openssl (original)

/ usr/local/ssl/bin/openssl (new)

/ usr/local/ssl/include/openssl (new)

Let's start to replace.

Mv / usr/bin/openssl / usr/bin/oldopenssl

Mv / usr/lib/openssl / usr/lib/oldopenssl

Rm-rf / usr/lib/libcrypto.so

Rm-rf / usr/lib/libssl.so

Ln-s / usr/local/ssl/lib/libcrytpo.so.0.9.8 / usr/lib/libcrypto.so

Ln-s / usr/local/ssl/lib/libssl.so.0.9.8 / usr/lib/libssl.so

Ln / usr/local/ssl/bin/openssl / usr/bin/openssl

Cp-r / usr/local/ssl/lib/* / usr/lib/openssl

Echo / usr/local/ssl/lib > > / etc/ld.so.conf

Ldconfig-vopenssl version-aOpenSSL 0.9.8h 28 May 2008

four. CentOS5.1 remote control installation ssh

Tar-zxvf openssh-5.0p1.tar.gz. / configure-- with-ssl-dir=/usr/local/ssl-- with-zlib-- with-pam-- with-md5-passwords configure: error: install rpm-ivh.. / pam-devel-0.99.6.2-3.26.el5.i386.rpm (available on the installation disk) under PAM headers not found. / configure-- with-ssl-dir=/usr/local/ssl-- with-zlib-- with-pam-- with-md5-passwords make make install

Ssh-V OpenSSH_5.0p1, OpenSSL 0.9.8h 28 May 2008

5.CentOS5.1 remote configuration

Vi / usr/local/etc/sshd_config Port 22 Protocol 2 (it is recommended to use only 2meme 1 with security issues)

ListenAddress 0.0.0.0

HostKey / usr/local/etc/ssh_host_key

HostKey / usr/local/etc/ssh_host_rsa_key

HostKey / usr/local/etc/ssh_host_dsa_key

SyslogFacility AUTH

LogLevel INFO PermitRootLogin no (for security reasons, do not log in by root, log in by other users, and then su)

RhostsRASAuthentication no IgnoreRhosts yes UsePrivilegeSeparation yes

After reading the above, do you have any further understanding of how to perform CentOS5.1 remote control upgrade and install ssl configuration compilation? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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