Articles and Information To Help You Secure Your Unix / Linux Computer
Articles and information to help you understand the holes and vulnerabilities that might be present in a Unix or Linux operating system and the tools and utilities commonly used with them as well as how you can configure your system to be as secure as possible.
Configuring Unix / Linux File and Directory Access Rights
A brief overview of file and directory access rights in Unix and Linux operating systems and using the chmod command to alter or modify file and directory permissions.
A brief overview of file and directory access rights in Unix and Linux operating systems and using the chmod command to alter or modify file and directory permissions.
Plan Ahead to Catch an Intruder
Many computers do not audit activity or record logs of what has happened. To make forensic investigation easier, or to prevent intrusion in the first place, you must enable and review your system logs.
Many computers do not audit activity or record logs of what has happened. To make forensic investigation easier, or to prevent intrusion in the first place, you must enable and review your system logs.
Critical Flaws Found In Linux Kernel
Polish security firm iSec Security Research last week announced the dicovery of 3 new vulnerabilities discovered in Linux. The flaws could result in an attacker being able to escalate privileges and execute programs as if they were the root administrator.
Polish security firm iSec Security Research last week announced the dicovery of 3 new vulnerabilities discovered in Linux. The flaws could result in an attacker being able to escalate privileges and execute programs as if they were the root administrator.
Nessus Vulnerability Scanner
Nessus is a freely available, open-source vulnerability scanner. It is exceptionally powerful and versatile. Before spending thousands on a commercial vulnerability scanner you should take a look at what Nessus can do for you.
Nessus is a freely available, open-source vulnerability scanner. It is exceptionally powerful and versatile. Before spending thousands on a commercial vulnerability scanner you should take a look at what Nessus can do for you.
Critical Sendmail Vulnerability
A vulnerability was discovered in Sendmail- an application that runs by default on many versions of Unix and Linux. Sendmail also handles the majority of email on the Internet.
A vulnerability was discovered in Sendmail- an application that runs by default on many versions of Unix and Linux. Sendmail also handles the majority of email on the Internet.
Rootkits: Stealth Hacking
Rootkits have been used for over 10 years to gain privileged access, attack computer systems and conceal the actions of the intruder on Unix and Linux. Now they're invading the Windows world.
Rootkits have been used for over 10 years to gain privileged access, attack computer systems and conceal the actions of the intruder on Unix and Linux. Now they're invading the Windows world.
UNIX Computer Security Checklist
The Australian Computer Emergency Response Team has developed a checklist which assists in removing common and known security vulnerabilities under the UNIX Operating System.
The Australian Computer Emergency Response Team has developed a checklist which assists in removing common and known security vulnerabilities under the UNIX Operating System.
Apache Worm Discovered
The first worm infected Apache servers has been discovered
The first worm infected Apache servers has been discovered
Oracle 8i Security Vulnerabilities Discovered
Security researchers recently announced the discovery of two flaws in Oracle 8i. Find out how to protect your system.
Security researchers recently announced the discovery of two flaws in Oracle 8i. Find out how to protect your system.
Protecting your password
Unix 101: Password Security - Protecting your password.
Unix 101: Password Security - Protecting your password.
Linux Security - The Community's Center For Security
Build a complete Internet presence quickly and securely! Q. How many LINUX servers in your company? Less than five Five to ten Ten to twenty Twenty to fifty More than fifty Security News Sites,
Build a complete Internet presence quickly and securely! Q. How many LINUX servers in your company? Less than five Five to ten Ten to twenty Twenty to fifty More than fifty Security News Sites,
Security
A set of links related to Unix security including alerts, tools, software solutions, checklists and guidelines.
A set of links related to Unix security including alerts, tools, software solutions, checklists and guidelines.
Linux Security
Check out this large resource dedicated to Linux security that features sections with advisories, documentation, tools, and forums.
Check out this large resource dedicated to Linux security that features sections with advisories, documentation, tools, and forums.
Linux Today
Offers a look at the most recent headlines from newspapers and magazines along with featured articles, mailing lists and archived issues.
Offers a look at the most recent headlines from newspapers and magazines along with featured articles, mailing lists and archived issues.
Solaris Security
Solaris security links: information, alerts, software and patches.
Solaris security links: information, alerts, software and patches.
Lion worm - vulnerabilities in bind
A newly reported Linux worm dubbed Lion infects Linux machines running the BIND DNS.
A newly reported Linux worm dubbed Lion infects Linux machines running the BIND DNS.
Unix file security - advanced
Unix file permission tutorial. Learn how to search for files based on their permissions and how to set the default permission for all newly created files and directories.
Unix file permission tutorial. Learn how to search for files based on their permissions and how to set the default permission for all newly created files and directories.
Mandrake Linux - Update and Security Advisories
Features security update advisories, security announcements, and support for Mandrake Linux users. Also find a collection of demos, downloads, and documentation.
Features security update advisories, security announcements, and support for Mandrake Linux users. Also find a collection of demos, downloads, and documentation.
Unix file security
An introduction to the Unix workgroups and permissions file security system. Learn how to use the groups, newgrp, chgrp and chmod commands.
An introduction to the Unix workgroups and permissions file security system. Learn how to use the groups, newgrp, chgrp and chmod commands.
Mozilla - Email Product Review
Mozilla is not only a great browser, but also a fully featured and powerful email client. It comes with an impressive security record, is remarkably privacy conscious, but still easy and fun to use. (Windows, Mac, Unix)
Mozilla is not only a great browser, but also a fully featured and powerful email client. It comes with an impressive security record, is remarkably privacy conscious, but still easy and fun to use. (Windows, Mac, Unix)
Unix Host and Network Security Tools
Unix Host and Network Security Tools A listing of network security tools and sites where they can be obtained. If you have any comments or updates, please send email to the address below. This DRAFT was compiled by Stephen Quinn at
Unix Host and Network Security Tools A listing of network security tools and sites where they can be obtained. If you have any comments or updates, please send email to the address below. This DRAFT was compiled by Stephen Quinn at
Network Operating Systems - Which NOS Is Best?
Which network operating system (NOS) is right for you? This article sizes up the field with links to our discussion group.
Which network operating system (NOS) is right for you? This article sizes up the field with links to our discussion group.
Vulnerability in ftp deamon - multiple unix flavors
A vulnerability in FTP servers on a variety of Unix flavors allows remote users to execute arbitrary code on the server machine.
A vulnerability in FTP servers on a variety of Unix flavors allows remote users to execute arbitrary code on the server machine.
Security-Enhanced Linux
Security-Enhanced Linux from the NSA government website.
Security-Enhanced Linux from the NSA government website.