We wish to set up some optimised Linux and BSD download FTP, Web and NFS areas. And also get the option of setting up optimised general FTP mirrors at a later date. (Using Apache for the web-server and most likely using Proftpd for the FTP server)
FTP does not support virtual name based resolution and only IP addresses. Thus we need to configure the SGI O2 to have a number of IP addresses on the one network card/interface. The following addresses have been allocated and setup by the network support people in the site DNS. This has to occur.
First thing to do is post to the relevant newsgroup and get some hints as a guide to minimize wasting of time.
From: trichter@ipk.fhg.de (Tobias Richter) Newsgroups: comp.sys.sgi.admin Subject: Re: Multiple IP address on SGI O2 for virtual FTP sites? Date: 21 Sep 1999 18:01:49 GMT Organization: Technical University Berlin, Germany Xref: daresbury comp.sys.sgi.admin:85178 Lachlan Cranswick |
From: heiko@cis.fu-berlin.de (Heiko Schlichting) Newsgroups: comp.sys.sgi.admin Subject: Re: Multiple IP address on SGI O2 for virtual FTP sites? Date: 22 Sep 1999 02:48:58 GMT Organization: Freie Universitaet Berlin Xref: daresbury comp.sys.sgi.admin:85183 l.cranswick@dl.ac.uk (Lachlan Cranswick) writes: >I am in the process of getting some IP addresses for an SGI O2 running >IRIX 6.5.x so I can set up some FTP virtual servers with Proftpd >(www.proftpd.org) on different names (but single interface). This works without problems. I use a Origin 200 with a Gigabit-Ethernet interface running IRIX 6.5.5f for this purpose. The FTP daemon is proftpd 1.2.0pre6. Do not use version 1.2.0pre5 on IRIX, it has some Linux dependent code in it and will not work. Older versions has security problems, so that you should really start with proftpd 1.2.0pre6. Proftpd is very flexible for configuring different virtual servers. You can see two examples of the above mentioned configuration here: ftp://ftp.fu-berlin.de/ ftp://ftp.individual.net/ There are additional servers on the same machine, but some are for non-anonymous software distribution only. >What man pages should I be looking at to understand how SGIs handle this >and is there a canned setup to handle this in an easy way? What nasty >things can happen (as well as the FTP servers not working) This is difficult to answer. In general, there is no special thing necessary to configure virtual servers with IRIX. But setting up a FTP server requires some knowledge about unix - especially security - or there are good changes in opening big holes. The additional IP addresses are added via /etc/config/ipaliases.options, as usual on IRIX. If the flag was changed from the default, newer IRIX versions also require "chkconfig ipaliases on". |
From: roberson@ibd.nrc.ca (Walter Roberson) Newsgroups: comp.sys.sgi.admin Subject: Re: Disabling Ethernet Port Date: 21 Sep 1999 18:00:58 GMT Organization: National Research Council Canada Xref: daresbury comp.sys.sgi.admin:85177 In article [7s8d6j$4sb$1@news.ececs.uc.edu], Zuke [johnzur@hotmail.com] wrote: :We would like to be able to pull our ethernet cable out from the :wall plug to disable internet access when it is not needed but :if we do we continually get a system message that says "ethernet :is not responding". How would we go about disabling this message :or disabling the network card when we do not want to use the :ethernet access. ifconfig ec0 down Replace 'ec0' with the name of your first ethernet port. You can see this by doing /usr/etc/netstat -ia |
In this case, we have 4 IP address to add with the following aliases for web and ftp aliases (the aliases are doing the same work and looking at the files)
Doing /usr/etc/ifconfig -v ec0
Gives the following interface, netmask and broadcast information.
ec0: flags=c43inet 193.62.124.194 netmask 0xffffffe0 broadcast 193.62.124.223 speed 100.00 Mbit/s half-duplex
Put the following into: /etc/config/ipaliases.options
ec0 193.62.124.195 netmask 0xffffffe0 broadcast 193.62.124.223 ec0 193.62.124.196 netmask 0xffffffe0 broadcast 193.62.124.223 ec0 193.62.124.197 netmask 0xffffffe0 broadcast 193.62.124.223 ec0 193.62.124.198 netmask 0xffffffe0 broadcast 193.62.124.223
Put the following into: /etc/hosts
193.62.124.195 ftp 193.62.124.196 redhat 193.62.124.197 debian 193.62.124.198 freebsd
Do chkconfig to check the status of the deamons and then chkconfig ipaliases on to turn on the above IP aliasing.
From: trichter@ipk.fhg.de (Tobias Richter) Newsgroups: comp.sys.sgi.admin Subject: Re: Multiple IP address on SGI O2 for virtual FTP sites? Date: 22 Sep 1999 17:43:40 GMT Organization: Technical University Berlin, Germany Xref: daresbury comp.sys.sgi.admin:85201 Lachlan Cranswick [l.cranswick@dl.ac.uk] wrote: >>This is difficult to answer. In general, there is no special thing necessary >>to configure virtual servers with IRIX. But setting up a FTP server requires >>some knowledge about unix - especially security - or there are good >>changes in opening big holes. The additional IP addresses are added via >>/etc/config/ipaliases.options, as usual on IRIX. If the flag was changed >>from the default, newer IRIX versions also require "chkconfig ipaliases on". > >Doing this, I found it did not work until I manually. Should the above have >worked without doing this? > >I had to also manually add in the IP addresses via the following style >of command: > >/usr/etc/ifconfig -v ec0 alias 193.62.124.196 netmask 0xffffffe0 broadcast 193.62.124.223 There is no such thing as a daemon checking those files for changes, so editing /etc/config/ipaliases.options or issuing 'chkconfig ipaliases on' of course either needs a reboot or a '/etc/init.d/network stop; /etc/init.d/network start' for the changes to take effect. Keep in mind: Stopping your networking with '/etc/init.d/network stop' usually disturbs most of your users nearly as much as a reboot. Bye, tobias |
From: heiko@cis.fu-berlin.de (Heiko Schlichting) Newsgroups: comp.sys.sgi.admin Subject: Re: Multiple IP address on SGI O2 for virtual FTP sites? Date: 22 Sep 1999 19:47:06 GMT Organization: Freie Universitaet Berlin Xref: daresbury comp.sys.sgi.admin:85209 trichter@ipk.fhg.de (Tobias Richter) writes: >[...] needs a reboot or a '/etc/init.d/network stop; /etc/init.d/network >start' for the changes to take effect. Keep in mind: Stopping your >networking with '/etc/init.d/network stop' usually disturbs most of your >users nearly as much as a reboot. For adding just an IP alias this is overkill. In most cases /etc/init.d/aliases-ip start is sufficient. If some special and unusual bindings to the new address are also configured, this might not be enough but try this first before stopping all network services or rebooting a server. |
Date: Wed, 22 Sep 1999 18:00:38 GMT Newsgroups: comp.sys.sgi.admin From: Mike O'Connor |
From: heiko@cis.fu-berlin.de (Heiko Schlichting) Newsgroups: comp.sys.sgi.admin Subject: Re: Multiple IP address on SGI O2 for virtual FTP sites? Date: 22 Sep 1999 19:22:56 GMT Organization: Freie Universitaet Berlin Xref: daresbury comp.sys.sgi.admin:85215 l.cranswick@dl.ac.uk (Lachlan Cranswick) writes: >>This is difficult to answer. In general, there is no special thing necessary >>to configure virtual servers with IRIX. But setting up a FTP server requires >>some knowledge about unix - especially security - or there are good >>changes in opening big holes. The additional IP addresses are added via >>/etc/config/ipaliases.options, as usual on IRIX. If the flag was changed >>from the default, newer IRIX versions also require "chkconfig ipaliases on". > >Doing this, I found it did not work until I manually. Should the above have >worked without doing this? (1) Add the ip-addresses in /etc/config/ipaliases.options. Example: [root@Hefe] 107 (/etc/config): tail -4 ipaliases.options eg1 130.133.1.101 netmask 0xffffff00 broadcast 130.133.1.255 eg1 130.133.1.102 netmask 0xffffff00 broadcast 130.133.1.255 eg1 130.133.1.103 netmask 0xffffff00 broadcast 130.133.1.255 eg1 130.133.1.104 netmask 0xffffff00 broadcast 130.133.1.255 (2) Switch on 'ipaliases' Flag, if someone turned it off (on is SGIs default): chkconfig ipaliases on (3) Activate it (this is done while booting automatically): /etc/init.d/aliases-ip start An manual 'ifconfig' is not necessary but is possible if you do not want to make step (3) for some reason. |
Now to enable this, do /etc/init.d/aliases-ip start
(An old method that was quite kludgy was:
At this point (as per the above) things are still not working as you would normally have to reboot
for the above IP address aliasing to take affect. Thus you have to add the
addresses into ifconfig with the following commands. Be wary that you may have
to manually input the netmast and broadcast address as it may use a wrong default.
/usr/etc/ifconfig -v ec0 alias 193.62.124.195 netmask 0xffffffe0 broadcast 193.62.124.223
/usr/etc/ifconfig -v ec0 alias 193.62.124.196 netmask 0xffffffe0 broadcast 193.62.124.223
/usr/etc/ifconfig -v ec0 alias 193.62.124.197 netmask 0xffffffe0 broadcast 193.62.124.223
/usr/etc/ifconfig -v ec0 alias 193.62.124.198 netmask 0xffffffe0 broadcast 193.62.124.223
You should now be able to /etc/bin/ping the above addresses, get a positive response and now setup the web server and ftp server.
Listen 193.62.124.195:80 Listen 193.62.124.196:80 Listen 193.62.124.197:80 Listen 193.62.124.198:80 |
Then putting in the following for web-access:
NameVirtualHost 193.62.124.196 <VirtualHost 193.62.124.196> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/redhat ServerName redhat.ccp14.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.redhat.com/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/redhat/ ErrorLog logs/redhat_error_log CustomLog logs/redhat_access_log combined </VirtualHost> <VirtualHost 193.62.124.196> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/redhat ServerName redhat.dl.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.redhat.com/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/redhat/ ErrorLog logs/redhat_dl_error_log CustomLog logs/redhat_dl_access_log combined </VirtualHost> NameVirtualHost 193.62.124.197 <VirtualHost 193.62.124.197> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/debian ServerName debian.ccp14.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.debian.org/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/debian/ ErrorLog logs/debian_error_log CustomLog logs/debian_access_log combined </VirtualHost> <VirtualHost 193.62.124.197> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/debian ServerName debian.dl.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.debian.org/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/debian/ ErrorLog logs/debian_dl_error_log CustomLog logs/debian_dl_access_log combined </VirtualHost> NameVirtualHost 193.62.124.198 <VirtualHost 193.62.124.198> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/freebsd ServerName freebsd.ccp14.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.freebsd.org/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/freebsd/ ErrorLog logs/freebsd_error_log CustomLog logs/freebsd_access_log combined </VirtualHost> <VirtualHost 193.62.124.198> ServerAdmin ccp14@ccp14.ac.uk DocumentRoot /web_disc/ccp14/web_area/freebsd ServerName freebsd.dl.ac.uk RewriteEngine on RewriteRule ^/cgi-bin/(.*) http://www.freebsd.org/cgi-bin/$1 [R,L] ScriptAlias /cgi-bin/ /usr/local/apache/share/cgi-bin/freebsd/ ErrorLog logs/freebsd_dl_error_log CustomLog logs/freebsd_dl_access_log combined </VirtualHost> |