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Unix Hosts

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News servers. News clients. No doubt there are others we could list. Engineering ... and INN, the traditional open source news server supported by the ISC, has ... – PowerPoint PPT presentation

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Title: Unix Hosts


1
Unix Hosts
  • Rangers.ipv6.unl.edu
  • Dale Finkelson

2
OS
  • Rangers uses Freebsd 4.4.
  • Has the advantage of having the Kame stack
    compiled into the Kernel.
  • I choose to use two names for the machine.
  • One resolving to a v6 address
  • One resolving to a v4 host
  • In the rc.conf file I used the name
    rangers.unl.edu rather then the v6 name.
  • Potentially some programs that reference that
    file may not recognize a name that resolves to a
    v6 address
  • Most other Unix variants have v6 included.

3
Applications
  • Essential to making v6 useful is porting
    applications.
  • Examples of necessary applications would be
  • Bind
  • Sendmail
  • Mail readers
  • Web servers
  • Web clients
  • News servers
  • News clients
  • No doubt there are others we could list.

4
Applications
  • What is available?
  • Bind
  • Apache
  • Mozilla
  • Sendmail
  • NNTP
  • By and large there are no particular issues in
    getting these to work.

5
Applications
  • For Sendmail
  • In the M4 file you need to add the following two
    lines.
  • DAEMON_OPTIONS(NameMTA-v4, Familyinet)
  • DAEMON_OPTIONS(NameMTA-v6, Familyinet6)

6
Goal
  • When we look at workstations the goal is to
    create dual-stack machines.
  • For servers it would be ideal if content was
    available for either v4 or v6 clients.
  • What would be really nice is some interesting
    peer-to-peer application that ran on v6.
  • Something students would like.

7
Traffic - the NNTP Experiment
  • Usenet makes an excellent IPv6 "foundation"
    application, and INN, the traditional open source
    news server supported by the ISC, has IPv6
    support in the INN -CURRENT development tree
    (ftp//ftp.isc.org/isc/inn/snapshots/) Tin
    supports v6 reading (http//www.tin.org)
  • Building INN is covered in detail in the INSTALL
    file included with the source including support
    for IPv6 is a simple matter of including the line
    --enable-ipv6 as part of the configure time
    options. See also doc/IPv6-info (included with
    the source).
  • IPv6 addresses show up explicitly in three
    configuration files
  • incoming.conf - who can transfer articles to you
  • innfeed.conf - where you are feeding articles
  • readers.conf - who can read/post from your server
  • All work the way you'd expect, and can accept
    either host names or IPv6 colon-formatted
    addresses (if you use colon-formatted raw
    addresses, enclose them in double quotes due to
    the use of colons as punctuation in the
    innfeed.conf file).
  • If folks need help finding an IPv6 Usenet peer,
    they should feel free to contact Joe St Sauver
    (joe_at_oregon.uoregon.edu). He will usually be
    willing to provide IPv6 Usenet peering, or play
    "matchmaker" to help people find other IPv6
    Usenet peers.

8
Assignments
  • We would like to see
  • Web services working
  • Nameservice working
  • Mail working
  • Ssh
  • Ipsec
  • Anything else you can think of
  • Have fun
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