Red Hat LINUX 7.2 - OFFICIAL LINUX CUSTOMIZATION GUIDE Manual page 159

Section 15.2:An Overview of Security-Related Packages
For more information about OpenSSH, see Chapter 9, OpenSSH and the OpenSSH website at
http://www.openssh.com.
openssl-devel
The openssl-devel package contains the static libraries and the include file needed to com-
pile applications with support for various cryptographic algorithms and protocols. You need to
install this package only if you are developing applications which include SSL support — you
do not need this package to use SSL.
stunnel
The stunnel package provides the Stunnel SSL wrapper. Stunnel supports the SSL encryption
of TCP connections, so it can provide encryption for non-SSL aware daemons and protocols
(such as POP, IMAP and LDAP) without requiring any changes to the daemon's code.
Table 15–1, Security Packages displays the location of the secure server packages and additional se-
curity-related packages within the package groups provided by Red Hat Linux. This table also tells
you whether each package is optional or not for the installation of a secure Web server.
Table 15–1 Security Packages
Package Name
apache
mod_ssl
openssl
mm
apache-devel
apache-manual
openssh
openssh-askpass
openssh-askpass-
gnome
openssh-clients
openssh-server
Located in Group
System Environment/Daemons
System Environment/Daemons
System Environment/Libraries
System Environment/Libraries
Development/Libraries
Documentation
Applications/Internet
Applications/Internet
Applications/Internet
Applications/Internet
System Environment/Daemons
Optional?
no
no
no
no
yes
yes
yes
yes
yes
yes
yes
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