Jailing is a mechanism to virtually change a system's root directory. By employing this method, administrators can isolate services so that they cannot access the real filesystem structure. You should run unsecured and sensitive network services in a chroot jail, because if a hacker can break into a vulnerable service he could exploit your whole system. If a service is jailed, the intruder will be able to see only what you want him to see -- that is, nothing useful. Some of the most frequent targets of attack, which therefore should be jailed, are BIND, Apache, FTP, and SSH. SSHjail is a patch for the OpenSSH daemon. It modifies two OpenSSH files (session.c and version.h) and allows you to jail your SSH service without any need for SSH reconfiguration. . The link for this article located at Linux.com is no longer available. . Effectively protect your OpenSSH server through the implementation of SSHjail, enhancing security measures and mitigating potential attack vectors.. OpenSSH Security, Chroot Jail, SSHjail Configuration, Service Isolation. . LinuxSecurity.com Team
So what is a "chroot jail"? Essentially it is a security method for creating a safe user enviroment on systems that allow remote access accounts. The "jail" locks users into a virtual directory structure and grants access only to applications created for the jailed users by the administrator.. . .. So what is a "chroot jail"? Essentially it is a security method for creating a safe user enviroment on systems that allow remote access accounts. The "jail" locks users into a virtual directory structure and grants access only to applications created for the jailed users by the administrator. It has long been a standard for hosting companies to create remote access accounts with this method, but the process was far from simple. Creating each account took many steps and needed thorough testing to assure system security. The Jail Chroot Project's purpose is to streamline the task of creating the chroot jail environment. It does so with utilities that "automagically configure & build all the required files, directories and libraries". It also makes adding new jailed accounts very easy. In this article, we'll take a look at the Jail Chroot Project utilities and show you how to install and use them to secure remote access accounts in a chroot-ed environment on your GNU/Linux system. The link for this article located at LinuxOrbit is no longer available. . Investigate the Jail Chroot Initiative aimed at establishing protected spaces using chroot environments for remote access users.. Chroot Jail, User Isolation, Remote Access, Secure Environment, Jail Project. . LinuxSecurity.com Team
If it's speed and security you're looking for, Postfix is a very nominal choice for a MTA. The MTA uses multiple layers of defense to protect the local system against intruders, as well as having the ability to run in a chroot jail. . . .. If it's speed and security you're looking for, Postfix is a very nominal choice for a MTA. The MTA uses multiple layers of defense to protect the local system against intruders, as well as having the ability to run in a chroot jail. All of the many configuration parameters can be found in the main.cf file, located in the ./conf directory in the postfix source. You need not change every parameter, as they are set to sensible defaults. Here are the details on some of the more important parameters, which will affect the performance of Postfix the most. Please note that if you change the main.cf file after installation, you must issue the postfix reload command. After installation, the main.cf file can be found in the /etc/postfix directory. The link for this article located at BSDToday is no longer available. . If it's speed and security you're looking for, Postfix is a very nominal choice for a MTA. The MTA u. speed, security, you're, looking, postfix, nominal, choice. . LinuxSecurity.com Team
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