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Apache and SELinux File Labels
Take a look at the SELinux settings associated with Apache. To review, SELinux settings, as they relate to a service, mostly fall into tw...
Apache Configuration File Security Option
you’ll examine the security options available in the main Apache configuration file, httpd.conf. That file can be modified to secure the e...
AWS VPC Overview
What is VPC ? A virtual private cloud (VPC) is a virtual network dedicated to your AWS account. It is logically isolated from other vir...
Advantages & Disadvantages of Kerberos
Advantages of Kerberos Most conventional network services use password-based authentication schemes. Such schemes require a user to au...
Apache Installation and Configuration through source code
In this example we extract the source code to a directory under /usr/local/src/ cp httpd-2.0.46.tar.gz /usr/local/src cd /usr/local/src...
SSH login without password
The following steps can be used to ssh from one system to another without specifying a password: 1. On the client run the following com...
Kerberos and PAM
Kerberos-aware services do not currently make use of Pluggable Authentication Modules (PAM) — these services bypass PAM completely. However...
How to automatically chroot jail selected ssh user logins
1. Creating basic chroot environment First we need to create a simple chroot environment. Our chroot environment will consist of a bash she...
How to Create the Kerberos database
Create the database with the following command. [root@coma ~] kdb5_util create -s This will prompt you for a password. You will ...
Tcpdump command with some examples
To print all packets arriving at or departing from sundown: tcpdump host sundown To print traffic between helios and either hot or ace: ...
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