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

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