If you never use remote connections to your home Linux machine you might want

If you never use remote connections to your home

This preview shows page 96 - 100 out of 138 pages.

If you never use remote connections to your home Linux machine, you might want to restrict the rights to use telnet, ftp, etc. (all the network services are listed in the file /etc/inetd.conf ) to the machines on your home network. The access is controlled by two files: /etc/hosts.allow and /etc/hosts.deny . These access-control files work as follows. When an outside connection is requested, the file /etc/host.allow is scanned first and if the name of the machine from which the connection is requested is matched, the access is granted (irrespectively of any entry in /etc/host.deny ). Otherwise, the file /etc/host.deny is scanned, and if the 92
Image of page 96
name of the machine from which the connection is requested is matched, the connection is closed. If no matches are found in either file, the permission is granted. As an example, you can deny access to telnet and ftp your home server from any machine from outside your home network by inserting the following entry in the file /etc/hosts.deny : in.telnetd, in.ftpd: ALL EXCEPT LOCAL, .your_home_domain.name For more info, check the excellent "Linux Network Administrator Guide" which is surely present on your RedHat (or whatever) distribution CD. I printed this book and had it hardcovered. Go to part 5: Kernel Upgrade 93
Image of page 97
L INUX N EWBIE A DMINISTRATOR G UIDE ver. 0.54 1999-10-15 Part 5: Kernel Upgrade Author: Alesh Mustar ([email protected]) Answers to Some Frequently Asked Linux Questions Distributed under the General Public Licence . Your feedback, comments, corrections, and improvements are appreciated. Comment specific to this page: [email protected] . Comment on the balance of this guide: [email protected] Quick site navigation: Start: Linux Newbie Administrator Guide Part 0: For the Undecided (Linux Benefits) Part 1: Before Linux Installation Part 2: Linux Resources, Help and Some Links Part 3: Basic Operations FAQ Part 4: Linux Newbie Administrator FAQ Part 5: >How to Upgrade the Kernel< Part 6: Linux Shortcuts and Commands Part 7: Essential Linux applications (proprietary or not) Kernel Upgrade - version 1.1.0 October 11th 1999 Author: Alesh Mustar ([email protected]) Contents of this page: 5. How to upgrade your kernel?
Image of page 98
Image of page 99
Image of page 100

You've reached the end of your free preview.

Want to read all 138 pages?

  • Spring '12
  • Disk partitioning, Debian, Red Hat, Linux distribution

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes