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Configuring Linux News Servers

Configuring Linux News Servers. Objectives This chapter will show you how to install and use News servers Contents Understanding news Installing News software Configuring and starting the INN server Setting up local newsgroups Practical Setting up local newsgroups.

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Configuring Linux News Servers

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  1. Configuring Linux News Servers • Objectives • This chapter will show you how to install and use News servers • Contents • Understanding news • Installing News software • Configuring and starting the INN server • Setting up local newsgroups • Practical • Setting up local newsgroups

  2. Understanding newsgroups • Usenet a store and forward messaging network • News and Mail are relayed from one system to another • Uses NNTP protocol RFC 977 • Can use the UUCP for modem users • Reading news • You need a newsfeed • Newsreader • Mozilla mail • Slrn • Newsreader • List of newsgroups • News Hierarchy • comp.os.linux.announce • Subscribing • .newsrc list of newsgroups that newsreader reads

  3. The INN server • News database: /var/spool/news • Can take up anything between 10Megabyte to 5Gigabyte • Cronjob for cleaning up stale news • /usr/lib/news/bin/news.daily • INN server programs Innd The news server Nnrpd Handles local readers Expire Removes old news Nntpsend Exchange news /etc/news/nntpsend.ctl Ctlinnd Interactive shell for innd server • Main config files /etc/news/inn.conf INND server main configuration /etc/news/newsfeeds Downstream news feed /etc/news/incoming.conf Declares incoming newsfeeds /var/lib/news/newsgroups List newsgropus /etc/news/readers.conf Declares hosts that are allowed to read news

  4. Understanding inn.conf • File format parameter: value • Parameters Mta Mail Transfer Agent (sendmail) Organization Header in all articles posted from our system Ovmethod Overview storage methodes Pathost Add this host to the news path that passws this system Pathnews Wehere inn binaries lives Domain the domain name of this server Allownewnews Storageapi Hiscachesize innflags

  5. Understanding newsfeeds • Declares how incoming news articles are redistributed to other servers, news feeds to others. • Format of newsfeed file: Site[/exclude, exclude…]:pattern,pattern…[/distrib, distrib…]:flag,flag…:param • Format explained, colon separated : Field description • The name of the feed’s: feed.domain.com, feed2.dom.com • Newsgroups patterns as *,@alt.binaries.warez.*,!sex.*,!local* @ drops news patter ! Dont distribute further * All matches 3) Feed entry type 4) External programs/files /usr/bin/controlchan

  6. Understanding incoming.conf • Describes which host is allowed to feed me weth news Peer myfeed { hostname: myfeedsite.com } Myfeed is a label for the peer and myfeedsite.com is the peer that feed us with news

  7. Understanding readers.conf • Declares this server allowed clients that can read news and post news Auth ”localhost” { hosts: ”localhost, 127.0.0.1, stdin” default:”<localhost>” } Access ”localhost” { users: ”<localhost> newsgroups: ”*” access RPA } Auth ”localnet” { hosts: 192.168.0.0/24 default:”<localnet>” } Access ”localnet” { users: ”<localnet> newsgroups: ”*” access RPA }

  8. Starting the INN server • You need to prepare your INN history database • INN is a stand alone server • Start INND • Remember to restart INND when you do changes # /usr/lib/news/bin/makehistory –b –f history 0 –l 30000 –I # cd /var/lib/news # /usr/lib/news/bin/makedbz –s `wc –l < history` -f history # chown news.news * # chown news.news /var/spool/news/overview/group.index # chmod 664 /var/spool/news/overview/group.index # chkconfig –level 35 innd on # service innd start # service innd restart # ps ax 23789 ? S 0:00 /usr/lib/news/bin/innd –p4 23794 ? S 0:00 /usr/bin/perl /usr/lib/news/bin/controlchan

  9. Setting up Local Newsgroups • Defining a newsgroup hirarchy ikea.general ikea.forsale ikea.technical.hardware Ikea.weekly.news ikea.jobs ikea.technical.software Ikea.weekly.menu ikea.wanted ikea.os.redhat • Updating configuration files Add descriptions on those newsgroups in /var/lib/news/newsgroups ikea.general Various information about anything ikea.forsale Employees forsale anything After this, add the ME entry in /etc/news/newsfeeds file ME : !ikea.* Nex you need a storage methode in: /etc/news/storage.conf method tradspool { class: 1 newsgroups: ikea.* } • Restart innd # service innd restart

  10. Adding the newsgroups • The final step is to add the newsgroups • Testing my newsserver Open your web browser (mozilla) and in address field type: news:ikea.general # /usr/lib/news/bin/ctlinnd newgroup ikea.general # /usr/lib/news/bin/ctlinnd newgroup ikea.news # /usr/lib/news/bin/ctlinnd newgroup ikea.menu . . .

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