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InNeedOfRefactor !!!Useful Linux links A few useful Linux Links which i collected from here and there to help out my colleagues... ---- [HUT's LinuxPage|http://www.cs.helsinki.fi/linux/] [HOWTOs|http://www.cs.helsinki.fi/linux/] __[Kernel-documentation|http://jungla.dit.upm.es/%7Ejmseyas/linux/kernel/hackers-docs.html]__ __[Linux Q&A|http://www.linuxdoc.org/FAQ/Linux-FAQ/]__ [Mailing list archives|http://www.linuxdoc.org/FAQ/Linux-FAQ/] [Online books|http://www.linuxdoc.org/FAQ/Linux-FAQ/] !!Miscellaneous: [DiffServ|http://www.linuxdoc.org/FAQ/Linux-FAQ/] [IPMasq|http://www.linuxdoc.org/FAQ/Linux-FAQ/] [Iproute2|http://www.linuxdoc.org/FAQ/Linux-FAQ/] __[Linux 2.4|http://www.linuxdoc.org/FAQ/Linux-FAQ/]__ [MobileIP|http://www.linuxdoc.org/FAQ/Linux-FAQ/] [NAT|http://www.linuxdoc.org/FAQ/Linux-FAQ/] [QoS|http://www.linuxdoc.org/FAQ/Linux-FAQ/] !!Isolated topics.. [The Linux MP3-HOWTO |http://www.ibiblio.org/pub/Linux/docs/HOWTO/other-formats/html_single/MP3-HOWTO.html] [Linux Network Programming, Part 1:|http://www2.linuxjournal.com/lj-issues/issue46/2333.html] ''BSD Sockets'' [Linux Network Programming, Part 2|http://www2.linuxjournal.com/lj-issues/issue47/2335.html]: ''Creating Daemon Processes'' ---- [http://www2.linuxjournal.com/lj-issues/issue47/2335.html] !!HOWTOs ''In addition to the topics listed below, there are also several __ProgrammingTutorials__ here..|http://stommel.tamu.edu/%7Ebaum/programming.html#Linux]'' __Enabling IPv6__ [Peter Bieringer's IPv6 HowTo|http://www.bieringer.de/linux/IPv6/IPv6-HOWTO/IPv6-HOWTO.html] [LinuxHQ.com's IPv6 FAQ/HOWTO|http://www.linuxhq.com/IPv6/] __Generalised Networking HOWTOs__ [Netlink HOWTO|http://qos.ittc.ukans.edu/netlink/html/] [(in pdf format)|http://qos.ittc.ukans.edu/netlink/netlink.pdf] ''-- by U. of Kansas'' [Networking HOWTO|http://www.linuxports.com/howto/networking/] [More Networking HOWTOs at LinuxStart.com|http://www.linuxstart.com/documentation/howtos/networking.html] ---- __QoS-related HOWTOs__ __For Linux 2.4__, a lot help is available here: [Linux 2.4 Advanced Routing & Traffic Control|http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html]'' -- updated very frequently -- ''tells you about band-width-division, creating traffic 'classes', etc.. __Prior to 2.4,__ [__Linux-QoS__-HOWTO|http://www.ittc.ukans.edu/%7Ersarav/howto/index.html] -- written with reference to the kernel version __2.1.125__ [__DiffServ __on Linux HOWTO|http://www.caip.rutgers.edu/%7Earni/ds_howto.txt] -- for __early 2.2.x series__ [How to install RHL 6.0/2.2.7 for __DiffServ__|http://renoir.csc.ncsu.edu/diffserv/kernel.html] ''-- by NC State U. - 2.2.7'' ---- __Routing HOWTOs__ [Advanced routing mini-HOWTO|http://snafu.freedom.org/linux2.2/docs/advanced-routing/] -- ''by Timur A. Bolokhov '' [Iproute2 Utility Suite HOWTO|http://www.linuxgrill.com/iproute2-toc.html] [Linux 2.4 Advanced Routing HOWTO|http://www.linuxdoc.org/HOWTO/Adv-Routing-HOWTO.html] [Linux 2.4 Advanced Routing & Traffic Control|http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html] '' -- updated very frequently -- ''tells you about Band-width-division, creating traffic 'classes', etc.. ---- [http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html] __Mailing list archives__ IF you're after some Kernel-related info.., then before, wasting time looking thru the mailing lists, it might be a good idea trying to [go here..|http://jungla.dit.upm.es/%7Ejmseyas/linux/kernel/hackers-docs.html] [The Linux-Kernel Archive|http://www.uwsg.indiana.edu/hypermail/linux/kernel/index.html] [Linux Netdev Mailing List|http://www.wcug.wwu.edu/lists/netdev/] - discusses the development of Linux's networking code, including __IPv6__ and related topics. [The linux-kernel mailing list FAQ|http://www.tux.org/lkml/] -> huge document! [atm.tut.fi mailing list-archive|http://atm.tut.fi/list-archive/] - contains the following: __diffserv__, ietf-announce, linux-atm, linux-diffserv, policy, rap, __rsvp__ ---- __Misc__ [http://atm.tut.fi/list-archive/] __IP masquerading__ (many private IPs use one host with official IP for Internet access) [IP masquerading info.|http://ipmasq.cjb.net/] [More info. @ Linux Network Administrators Guide|http://www.linuxdoc.org/LDP/nag2/x-087-2-ipmasq.html] -''- more detailed'' ---- [http://www.linuxdoc.org/LDP/nag2/x-087-2-ipmasq.html] __Linux Iproute2__ The Iproute2+tc package allows access to the variety of networking features in the 2.2 kernels such as: Policy routing, NAT, QoS, advanced tunnels, RSVP and DiffServ, etc. __NOTE__: tc: Linux traffic control [One of the places to get started.|http://snafu.freedom.org/linux2.2/iproute-notes.html] -- very detailed. __Other site/s:__[http://defiant.coinet.com/iproute2/ |http://defiant.coinet.com/iproute2/] -- not easy to understand For Iproute2 HOWTO, [click here|http://www.linuxgrill.com/iproute2-toc.html] . Mark Lamb has collected some mail list messages that discuss the usage of these tools, [here.|http://snafu.freedom.org/linux2.2/net-list-notes.html] ---- [__IPv6__ Flow Labels in Linux-2.2. |http://snafu.freedom.org/linux2.2/docs/api-ip6-flowlabels/] [http://snafu.freedom.org/linux2.2/docs/api-ip6-flowlabels/] __Linux 2.4__ [Linux 2.4 Advanced Routing & Traffic Control|http://www.ds9a.nl/2.4Routing/] -- This site attempts to document how to configure and use 2.4's advanced Routing, filtering and traffic shaping options. [Linux 2.4 Status/TODO Page|http://linux24.sourceforge.net/] [Wonderful World of Linux 2.4|http://linuxtoday.com/stories/15936_flat.html] -- a LONG article by Joe Pranevich, talking bout the 2.4 kernel So far, from what I've found out, there's also an online-book which serves as an "Introduction to the Linux 2.4 kernel", [here|http://www.moses.uklinux.net/patches/lki.html]. For related HOWTOs, click here|http://www.moses.uklinux.net/patches/lki.html] . ---- [http://www.moses.uklinux.net/patches/lki.html] __Mobile IP related links__ [HUT's implementation on Linux in IPv4|http://www.cs.hut.fi/Research/Dynamics/] [HUT's implementation on Linux in IPv6|http://vesper.tky.hut.fi/mip/] ---- [http://vesper.tky.hut.fi/mip/] __Network Address Translator [[NAT]__ [A general website on Linux NAT|http://linas.org/linux/load.html] [More info. @ Linux Network Administrators Guide|http://www.linuxdoc.org/LDP/nag2/x-087-2-ipmasq.html] -''- more detailed'' ---- [http://www.linuxdoc.org/LDP/nag2/x-087-2-ipmasq.html] __QoS __ This section describes QoS support on Linux . For more info. on QoS related links, click here|http://www.linuxdoc.org/LDP/nag2/x-087-2-ipmasq.html] . __What is available in Linux QoS support?__ __Prior to 2.4__, the kernel had the following: * Each network device has a queue associated with it. * There are 11 types of queuing disciplines currently supported in linux . * Each queue has a scheduler associated with it. Queuing disciplines and classes are tied to one another. * Filters, which are used to classify packets based on certain properties of the packet, e.g., TOS byte in the IP header, IP addresses, port numbers etc. __What Linux 2.4 can do for you?__ summarised from [here|http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html] * Throttle bandwidth for certain computers * Throttle bandwidth TO certain computers * Help you to fairly share your bandwidth * Protect your network from DoS attacks * Protect the internet from your customers * Multiplex several servers as one, for load balancing or enhanced availability * Restrict access to your computers * Limit access of your users to other hosts * Do routing based on user id (yes!), MAC address, source IP address, port, * type of service, time of day or content The iproute2+tc package is required for accessing the QoS features of the kernel. #8216tc#8217 (traffic conditioner) is used to set up queues, classes and filters. It uses netlink sockets to interface with the kernel. -- ''in English - it does the Band-width-division, creating traffic 'classes', blah, blah ....'' [There are a few QoS-related HOWTOs here|http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html]. __QoS Stuff from U. of Kansas __ __[U. of Kansas IP-QoS page|http://qos.ittc.ukans.edu/]'' ''-- site includes details of their DiffServ testbed, performance measurements, etc.. -- also contains Linux Diff-Serv Patches__ __[Linux - Advanced Networking Overview V.1|http://qos.ittc.ukans.edu/howto/index.html] [Linux QoS API|http://qos.ittc.ukans.edu/slides/sld004.htm] -- Please note: an [API for Linux QoS has been written by U. of Kansas|http://qos.ittc.ukans.edu/slides/sld010.htm] (slides 10-12) [Linux QoS Support -- an implementation overview|http://www.ittc.ukans.edu/%7Ersarav/projects/networking/ipqos/diffoverview/] [http://www.ittc.ukans.edu/%7Ersarav/projects/networking/ipqos/diffoverview/] __DiffServ__ For DiffServ Documentation links and general info. [click here..|QoSlinks.html] __DiffServ On Linux__ From what I understand, 2.2.x series probably does not support DiffServ directly, so it needs patches, available from [here.|http://icawww1.epfl.ch/linux-diffserv/dist.html] 2.3 kernels already contain all the changes to support Differentiated Services. My earlier posting about the [report|http://www.ittc.ukans.edu/%7Ersarav/projects/networking/ipqos/diffoverview/] made by the University of Kansas on Linux QoS support, [[which said: the kernel cannot differentiate between Assured Forwarding (AF) and Expedited Forwarding (EF)]</u > -- __they used a much older kernel version__. Hence, for supporting EF and AF forwarding behaviours on a Linux router (old kernels), a tool called Diffspec was developed by the University of Kansas. __Diffspec__ Diffspec, can support both EF and AF forwarding behaviours. It is in the form of a daemon diffspec, which runs on a Linux box with enabled QoS features. The code for this tool can be [downloaded from here.|http://www.ittc.ukans.edu/%7Eanu/courses/800_report/code_download.html] From my reading so far, you ''probably'' also need the following tools/patches for supporting DiffServ on linux: iproute2, ds-2 patch (both available from [here|http://qos.ittc.ukans.edu/]). ---- [http://qos.ittc.ukans.edu/] __A list of Online books devoted to Linux __ * [Linux Kernel Internals|http://www.moses.uklinux.net/patches/lki.html], By: Tigran Aivazian - ''An introduction to the Linux __2.4__ kernel.'' * [Linux From Scratch|http://www.linuxfromscratch.org/view/intel-2.4.3/index.html], By: Gerard Beekmans - ''for Linux users who want to learn more about the inner workings of Linux and how the various pieces of the Operating System fit together.'' * [The Linux Network Administrator's Guide, Second Edition|http://www.linuxdoc.org/LDP/nag2/index.html], - ''says that it provides a single reference for network administration in a Linux environment, for beginners and experienced users alike.'' * [The Linux Kernel|http://sunsite.unc.edu/linux/LDP/tlk/tlk.html], By: David A. Rusling ---- ''This page was last updated on the 31st January 2001 at 1701 hrs (Singapore time) Please Note'''' that I no longer maintain this page, but hopefully__ __some of the link listed here shud still be helful to others..'' :)
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