[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/HowTo/ChangeIpSubnet" by David Prévot
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Fri Aug 30 21:45:25 UTC 2013
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The "DebianEdu/HowTo/ChangeIpSubnet" page has been changed by David Prévot:
https://wiki.debian.org/DebianEdu/HowTo/ChangeIpSubnet?action=diff&rev1=52&rev2=53
Comment:
Lenny and Squeeze are now out of the picture
= Changing subnet in Debian Edu / Skolelinux =
- /!\ Note that for Debian Edu Squeeze, a script /usr/share/debian-edu-config/tools/subnet-change is provided to do this change automatically just after installation.
+ /!\ A script /usr/share/debian-edu-config/tools/subnet-change is provided to do this change automatically just after installation.
Some times it is necessary to make a Skolelinux installation in a
network with a fixed ip-structure. The default installation does a lot of
@@ -42, +42 @@
grep -r "10\.0\." /opt/ltsp
}}}
- In the etch version of Debian Edu, these files need to be modified:
-
- /!\ If you do this on lenny, please check this list and remove this comment. Thank you! :-)
-
- {{{
- /etc/network/interfaces
- /etc/powerdns/pdns.d/pdns-debian-edu-if.conf
- /etc/hostname
- /etc/hosts
- /etc/exports
- /etc/cups/cupd.conf
- LDAP must be changed -> ldapvi
- }}}
-
== Use a dummy interface for testing thin-clients ==
Another approach is use eth0 with your LANs network settings and use (in the case of the mainserver) 10.0.2.2 on a dummy interface:
@@ -78, +64 @@
/!\ This setup is mostly used for setting up a test-server for using thin clients. If you want to include workstations into your testnet, you really should set up a full Debian Edu test-network with a dedicated firewall etc. Or you need to change your DNS-server, so that the needed hostnames resolves to your mains-server.
-
- = Change IP on Lenny =
-
- If you are using subnet 10.100.32/23
-
- Files to change in /etc
- /etc/ldap/dns_ranges.ldif
- Use the vim editor
- vi /etc/ldap/dns_range.ldif
- then:
- {{{
- :%s/2.0.10/32.100.10/g
- :%s/3.0.10/33.100.10/g
- :%s/dc=3,dc=0,dc=10/dc=33,dc=100,dc=10/g
- :%s/dc=2,dc=0,dc=10/dc=32,dc=100,dc=10/g
- }}}
-
- vi /etc/ldap/dns_skole.ldif
-
- {{{
-
-
- :%s/10.0.2.2/10.100.32.2/g
- :%s/10.0.2.1/10.100.32.1/g
-
-
-
- }}}
-
-
-
- vi /etc/ldap/dhcp.ldif
-
- {{{
- :%s/10.0.2/10.100.32/g
- :%s/10.0.3/10.100.33/g
-
- if you are using 24 bit network you have to change dhcpNetMask to 24
-
- }}}
-
- vi /etc/ldap/dns_arpa.ldif
-
- {{{
- :%s/dc=2,dc=0,dc=10/dc=32,dc=100,dc=10/g
- :%s/dc=0,dc=10/dc=100,dc=10/g
- :%s/0.10.in-addr.arpa/100.10.in-addr.arpa/g
- :%s/2.100.10.in-addr.arpa/32.100.10.in-addr.arpa/g
- :%s/dc=3,dc=100,dc=10/dc=33,dc=100,dc=10/g
- :%s/3.100.10.in-addr.arpa/33.100.10.in-addr.arpa/g
-
- Remember to change line 5 from 2 to 32
-
- dn: dc=32,dc=100,dc=10,dc=in-addr,dc=arpa,ou=hosts,dc=skole,dc=skolelinux,dc=no
- objectclass: top
- objectclass: dnsdomain2
- objectclass: domainrelatedobject
- ""dc: 32""
- associateddomain: 32.100.10.in-addr.arpa
-
-
- }}}
-
- vi /etc/network/interfaces
-
- {{{
- address 10.0.2.2 to address 10.100.32.2
- broadcast 10.0.2.255 to broadcast 10.100.33.255
- gateway 10.0.32.1 to gateway 10.100.32.1
- }}}
-
- vi /etc/hosts
-
- {{{
- 10.0.2.2 to 10.100.32.2
- }}}
-
- vi /etc/hosts.allow
-
- {{{
- syslog: 10.0.2. to 10.100.32.
- syslog: 10.0.3. to 10.100.33.
- in.tftpd: 10.0.2. to 10.100.32.
- in.tftpd: 10.0.3. to 10.100.33.
- portmap: 10.0.2. to 10.100.32.
- portmap: 10.0.3. to 10.100.33.
- }}}
-
-
-
- vi /etc/exports
-
- {{{
- /opt/ltsp/i386 10.0.2.0/255.255.254.0 to /opt/ltsp/i386 10.100.32.0/255.255.254.0
- }}}
-
- vi /etc/powerdns/pdns.d/pdns-debian-edu.conf and /etc/powerdns/pdns.d/pdns-debian-edu-if.conf
-
- {{{
-
- allow-recursion=10.0.2.0/23 to allow-recursion=10.100.32.0/23
- and
- 10.0.2.2 to 10.100.32.2 in pdns-debian-edu-if.conf
-
- }}}
-
-
- Then, take a backup of ldap datbase, genereate a new LDAP database, and make a new ssl certificate
-
- {{{
- cd /root/
- mkdir ldap-backup
- /etc/init.d/nscd stop
- /etc/init.d/slapd stop
- slapcat > ldap-backup.ldif
- mv /var/lib/ldap/* ldap-backup/
- /usr/bin/ldap-debian-edu-install
- chown openldap:openldap /var/lib/ldap/* # Really needed? If so, there is a bug in ldap-debian-edu-install
- /etc/init.d/slapd start
- /etc/init.d/nscd start
- for a in hosts passwd group services; do nscd -i $a; done
- /etc/init.d/fetch-ldap-cert start
- }}}
-
- Remember to run samba-debian-edu-admin to get samba to work.
-
- {{{
- Changes needed to get diskless clients to work.
-
- Edit /opt/ltsp/i386/etc/resolvconf/run/resolv.conf
- Edit /opt/ltsp/i386/etc/resolvconf/resolv.conf.d/original
- edit /opt/ltsp/i386/etc/resolv.conf
- change this ip from 10.0.2.2 to 10.100.32.2
-
-
- Known problem:
- After changing to new ip addres, the nameserver under resolv.conf in chroot change back to nameserver 127.0.0.1 everytime you reboote server,
- and diskless stop working untill you manually change it back to the ip it should be.
-
- To fix this problem you have to add $SERVER to trunk/src/debian-edu-config/share/debian-edu-config/default-ltsp-client-setup
- Go to: https://init.linpro.no/pipermail/skolelinux.no/commits/2010-June/105499.html to read more about this problem
-
- }}}
-
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