1. Assignment: Install a debian ssh server on a VirtualBox and access to it
config apt-cacher 192.168.10.1 port 3128
sed -i 's#http://#http://192.168.10.1:3142/#g' /etc/apt/sources.list
install emacs
sudo aptitude install emacs
install config openssh server and make it work
eval `ssh-agent` exec ssh-agent bash (if ssh-add is not working)
add sam_sshkey.pub to .ssh/authorized_keys
add to /etc/ssh/sshd_config:
AllowUsers xxx
changed in the same file:
PasswordAuthentication no PermitRootLogin no
If ssh doesn't work check the grp and own of .ssh/authorized_keys
install bash completion
aptitude install bash-completion
add the following to ~/.bashrc or ~/.bash_profile
if [ -f /etc/bash_completion ]; then . /etc/bash_completion fi
Document the work done
Well, that's kind of done but the editing interface of the wiki is not yet clear to me. Few shortcut:
- create a code box:
{code 'Enter'
- heading
'ctrl' AND '1' XOR '2' XOR '3'
- bullet list
'shift' AND 'ctrl' AND 'b'
- bold, underline, italic
'ctrl' AND 'b' 'ctrl' AND 'u' 'ctrl' AND 'i'
- save
'ctrl' AND 's'
Problems encountered after installation of debian
On start and halt
PROBLEM:
exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken
SOLUTION:
rm /var/log/exim4/paniclog
need to start the network manually dhclient eth0
PROBLEM: when auto eth0 added to interfaces. Nfs interfaces gets stuck on boot.
SOLUTION: there was no 'auto lo' in /etc/network/interfaces. That added plus 'auto eth0' makes it work.
2. Assignement: Install a graphic interface on Debian installation
Install Debian with nothing else than the minimum (except for laptop)
Install XOrg
apt-get install xorg
Install Gnome
apt-get install gnome-core
to test the installation:
starx
change the resolution
CTRL + ALT + '+' and CTRL + ALT + '-'
screen the available resolution and change it
xrandr -q wrands -s resolution
Install a display manager
apt-get install gdm
to start it
gdm
Install proprietary graphic card drivers:
If the kernel isn't compiled you need to install the kernel headers.
Check the kernel version
uname -r
Install the kernel header and link it to the linux file
apt-get install linux-header-... rm /usr/src/linux ln -s /usr/src/linux-header-... /usr/src/linux
Install the compilers
apt-get install gcc g++
For the nvidia cards
Download the latest drivers from the nvidia website.
Stop gdm (might need a kill)
/etc/init.d/gdm stop
Install the driver
sh NVIDIA...
Don't download the kernel interface. Ask for a compilation of a new interface. Start xconfig ans restart gdm
nvidia-xconfig /etc/init.d/gdm restart
To remove the logo in xorg.conf
Option "NoLogo" "1"
3. Assignment: Install Amanda & use it
Installation
create the directory structure for the folders to keep the backup
mkdir /mnt/backup #mount $DISK /mnt/backup/ mkdir /mnt/backup/vtapes /mnt/backup/holding /mnt/backup/holding/sam chown backup.disk -R /mnt/backup/*
create the config in /etc/amanda
mkdir /etc/amanda/sam-daily touch /etc/amanda/sam-daily/amanda.conf touch /etc/amanda/sam-daily/disklist chown -R backup.backup /etc/amanda/sam-daily
/etc/amanda/sam-daily/amanda.conf
org "sam"
mailto "root"
dumpcycle 7
runspercycle 5
tapecycle 30
dumpuser "backup"
tpchanger "chg-disk:/mnt/backup/vtapes/sam" # a virtual tape changer
#tapedev "/dev/nst0a" # the tapechanger
#tapedev "file:/mnt/backup/vtapes/offering"
changerfile "/var/lib/amanda/sam/changerfile"
labelstr "SAM.*"
label_new_tapes "SAM-%%"
tapetype DVD_SIZED_DISK
logdir "/var/lib/amanda/sam"
infofile "/var/lib/amanda/sam/curinfo"
indexdir "/var/lib/amanda/sam/index"
tapelist "/var/lib/amanda/sam/tapelist"
runtapes 5
#usetimestamps YES
dtimeout 3600 #seconds per client per dump
holdingdisk hd1 {
directory "/mnt/backup/holding/sam"
}
define dumptype comp-tar {
program "GNUTAR"
index yes
# record no # Important! avoid interfering with production runs
auth "bsdtcp"
}
define dumptype user-tar-span {
comp-tar
tape_splitsize 445 MB
auth "bsd"
#holdingdisk no
#split_diskbuffer "/mnt/holding/diskbuffer"
#fallback_splitsize 100M
comment "tape-spanning user partitions dumped with tar"
#exclude list "/etc/amanda/sam-daily/exclude-list"
}
define dumptype user-tar-span-home {
user-tar-span
comment "exluding all the unwanted things from /home"
# exclude list "/etc/amanda/sam-daily/exclude-list"
}
define tapetype DVD_SIZED_DISK {
filemark 4 KB
length 4482 MB
}
echo debian-server-test-sam.bluelight.av backup amdump >> /var/backups/.amandahosts
/etc/amanda/sam-daily/disklist
debian-server-test-sam.bluelight.av /etc user-tar-span
debian-server-test-sam.bluelight.av /var user-tar-span
debian-server-test-sam.bluelight.av /root user-tar-span
#debian-server-test-sam.bluelight.av /home/./all /home/ {
#user-tar-span
#exclude append "./media_no_backup"
#}
as the backup user create all the virtual tapes and label them
su backup -c "mkdir /mnt/backup/vtapes/sam" for i in `seq 30`; do su backup -c "mkdir /mnt/backup/vtapes/sam/slot$i"; done cd /mnt/backup/vtapes/sam && ln -s slot1 data
create the tapelist
su backup -c "mkdir /var/lib/amanda/sam" su backup -c "touch /var/lib/amanda/sam/tapelist"
label the tapes
for i in `seq 30`; do su backup -c "/usr/sbin/amlabel sam-daily SAM-$i slot $i"; done
/root/scripts/amanda-backup (after creating the folder)
#!/bin/bash
#mount ${DISK} /mnt/backup
su backup -c "/usr/sbin/amdump sam-daily"
#sleep 5
#umount /mnt/backup
exit 0
chmod +x /root/scripts/amanda-backup
Recover (example for /etc)
In order to be able to run a recovery add the following line to /etc/amandahosts
localhost root amindexd amidxtaped
Go to the /etc folder
amrecover sam-daily listhost sethost debian-server-test-sam.bluelight.av listdisk setdisk /etc cd (folder name - ls works too) add (name of the folder to recover or * for everything) extract exit
If the backuo is restored from an external drive:
- make sure you have /etc/amanda and /var/lib/amanda on the external drive
- copy these 2 folders to the system to restore
- mount --bind the folder containing the vtapes to the folder on the system which supposed to have the vtapes (cf /etc/amanda/sam-daily/amanda.conf)
- follow the steps above
Problems encountered
...amanda.conf ...Line 54: end of line expected
SOLUTION: Press 'ENTER' at the end of the file and save.
4. Assignment: Weekly backup for server cupcake
First phase: Test on VirtualBox
Clone the amanda disk already created.
Do it by exporting Appliance and then import it preferably with new name.
PROBLEM: the virtual disks use the same lan card and the same MAC address.
SOLUTION: change the MAC address in VirtualBox and change it in the OS:
emacs /etc/udev/rules.d/70-persistent-net-rules
keep the interface with the new MAC address and make sure it is named eth0. Restart the OS.
Create to virtual drive and mount then on the server
Create 1 drive in virtual box and create 2 partitions:
fidsk -l cfdisk /dev/sdb
format the partitions and mount them:
mkfs.ext3 /dev/sdb1 mkfs.ext3 /dev/sdb2 mkdir /media/backup-data mkdir /media/backup-data2 mount -t ext3 /dev/sdb1 /media/backup-data mount -t ext3 /dev/sdb2 /media/backup-data2
Create a daily backup of the second virtual OS
Second phase: Configure CUPCAKE
Explanation of runscycle and other in amanda.conf
| dumpcycle | runs per cycle | runtapes | tapecycle | tapetype | ||||
| The amount of days you will have a full backup (ex: every 4 weeks = 28) | How many backup runs per dumpcycle (ex: every week = 4) | How many tapes to use per run (ex: Biggest disklist + a bit / tapetype size = 12) | How many tapes are available. The number decrease at every run. Runtapes * runs per cycle + a bit(ex: 50) | defines the size of a tape (ex: DVD size: 4,5G) | ||||
| 1 | ||||||||
| 2 | DLE_1 | 10G | ||||||
| 3 | DLE_2 | 45G | ||||||
| 4 | DLE_3 | 1G | ||||||
| 5 | ||||||||
| 6 | ||||||||
| 7 | run | 12 | ||||||
| 8 | ||||||||
| 9 | ||||||||
| 10 | ||||||||
| 11 | ||||||||
| 12 | ||||||||
| 13 | ||||||||
| 14 | run | 12 | ||||||
| 15 | ||||||||
| 16 | ||||||||
| 17 | ||||||||
| 18 | ||||||||
| 19 | ||||||||
| 20 | ||||||||
| 21 | run | 12 | ||||||
| 22 | ||||||||
| 23 | ||||||||
| 24 | ||||||||
| 25 | ||||||||
| 26 | ||||||||
| 27 | ||||||||
| 28 | dumpcycle | run | 12 |
Creating the script adapted to the present situation of the server (12/2011)
#!/bin/bash
## this is to automate the amanda setup
## variables used.
SERVICE=bluelight
FREQ=-weekly # frequence of the backup
MOUNTPOINT1=/media/backup-data # mountpoint for holding
MOUNTPOINT2=/media/backup-data2 # mountpoint for backup
TAPE=`echo ${SERVICE}${FREQ} | tr [a-z] [A-Z]`
## create the directory structure for the folders to keep the backup
mkdir ${MOUNTPOINT1}/amanda ${MOUNTPOINT1}/amanda/holding ${MOUNTPOINT1}/amanda/holding/${SERVICE}${FREQ}
chown backup.disk -R ${MOUNTPOINT2}/amanda/*
chown backup.disk -R ${MOUNTPOINT1}/amanda/*
## create the config in /etc/amanda
mkdir /etc/amanda/${SERVICE}${FREQ}
touch /etc/amanda/${SERVICE}${FREQ}/amanda.conf
touch /etc/amanda/${SERVICE}${FREQ}/disklist
chown -R backup.backup /etc/amanda/${SERVICE}${FREQ}
## The config files
cat << EOF > /etc/amanda/${SERVICE}${FREQ}/amanda.conf
org "Bluelight"
mailto "bluelight@auroville.org.in"
dumpcycle 28
runspercycle 4
runtapes 15
tapecycle 60
dumpuser "backup"
tpchanger "chg-disk" # a virtual tape changer
tapedev "file:/media/backup-data2/amanda/vtapes/bluelight-weekly"
changerfile "/var/lib/amanda/bluelight-weekly/changerfile"
labelstr "BLUELIGHT-WEEKLY-.*"
#label_new_tapes "BLUELIGHT-WEEKLY-%%"
tapetype DVD_SIZED_DISK
logdir "/var/lib/amanda/bluelight-weekly"
infofile "/var/lib/amanda/bluelight-weekly/curinfo"
indexdir "/var/lib/amanda/bluelight-weekly/index"
tapelist "/var/lib/amanda/bluelight-weekly/tapelist"
holdingdisk hd1 {
directory "/media/backup-data/amanda/holding/bluelight-weekly"
}
define dumptype comp-tar {
program "GNUTAR"
compress fast
index yes
# record no # Important! avoid interfering with production runs
}
define dumptype user-tar-span {
comp-tar
tape_splitsize 445 MB
holdingdisk no
split_diskbuffer "/media/backup-data/amanda/holding/diskbuffer"
fallback_splitsize 100M
comment "tape-spanning user partitions dumped with tar"
compress none
}
define dumptype user-tar-span-home {
user-tar-span
comment "exluding all the unwanted things from /home"
exclude list "/etc/exclude-list"
compress none
}
define tapetype DVD_SIZED_DISK {
filemark 4 KB
length 4482 MB
}
EOF
## create the disklist
cat <<EOF > /etc/amanda/${SERVICE}${FREQ}/disklist
rose.bluelight.av /etc user-tar-span
rose.bluelight.av /root user-tar-span
rose.bluelight.av /var user-tar-span
#192.168.10.12 /home/aufilduweb/data/Entreprises/Auroville/ user-tar-span
#
#192.168.10.12 /var/www/./programming /var/www {
# user-tar-span
## auth "bsdtcp"
# include "./meeting"
# include "./act"
# include "./mm_visitor_access"
#} 2
#this section is for everything in /home
######
rose.bluelight.av /home/./bharathy /home/ {
user-tar-span-home
include "./bharathy"
} 1
rose.bluelight.av /home/./juergen /home/ {
user-tar-span-home
include "./juergen"
} 1
rose.bluelight.av /home/./resources /home/ {
user-tar-span-home
include "./resources"
} 1
rose.bluelight.av /home/./rest /home/ {
user-tar-span-home
exclude append "./bharathy"
exclude append "./juergen"
exclude append "./resources"
exclude append "./backup"
exclude append "./backup_services"
exclude append "./rdiff-backup"
exclude append "./classes"
exclude append "./joy"
exclude append "./sincerity"
exclude append "./surrender"
exclude append "./music"
} 1
######
EOF
## as the backup user create all the virtual tapes and label them
su backup -c "mkdir ${MOUNTPOINT2}/amanda/vtapes/${SERVICE}${FREQ}"
for i in `seq 30`; do su backup -c "mkdir ${MOUNTPOINT2}/amanda/vtapes/${SERVICE}${FREQ}/slot$i"; done
cd ${MOUNTPOINT2}/amanda/vtapes/${SERVICE}${FREQ} && ln -s slot1 data
## create the tapelist
su backup -c "mkdir /var/lib/amanda/${SERVICE}${FREQ}"
su backup -c "touch /var/lib/amanda/${SERVICE}${FREQ}/tapelist"
## label the tapes
for i in `seq 30`; do su backup -c "/usr/sbin/amlabel ${SERVICE}${FREQ} ${TAPE}-$i slot $i"; done
[ -d /root/scripts ] || mkdir /root/scripts
## create the starting script
cat <<EOF > /root/scripts/amanda-${SERVICE}${FREQ}-backup
#!/bin/bash
su backup -c "/usr/sbin/amdump ${SERVICE}${FREQ}"
sleep 20
# if the machine should stay on after the backup create a file in / called no
# ie touch /no
if [ -f /no ]
then
rm -f /no
exit 0
else
/sbin/halt
fi
exit 0
EOF
chmod +x /root/scripts/amanda-${SERVICE}${FREQ}-backup
exit 0
Create a crontab entry
# m h dom mon dow command 17 12 * * 1-4 /root/scripts/backup-bluelight 17 12 * * 5 /root/scripts/backup-bluelight-weekly
changed the runscycle of the daily backup to 4 in amanda.conf
PROBLEM:
amrecover bluelight-weekly
AMRECOVER Version 2.5.2p1. Contacting server on localhost ... [request failed: timeout waiting for ACK]
SOLUTION:
amrecover bluelight-weekly -s cupcake.bluelight.av -t cupcake.bluelight.av
5. Assignment: Make a weekly -Offsite backup of the TownHall
Rdiff-backup
Install rdiff on the server and the working station.
apt-get install rdiff-backup
and create a backup folder in the server (ex: /backup/servername/)
Login using ssh key
As root on the working station create the key, do not enter any paraphrase.
ssh-keygen -t rsa
Copy the public key to the server
scp /root/.ssh/id_rsa.pub root@192.168.10.91:/root/
Write the public into the .ssh/authorized_keys of the user (in his home folder) you want to login to
cat id_rsa.pub >> /root/.ssh/authorized_keys
change in /etc/ssh/sshd_config:
PasswordAuthentication no PermitRootLogin without-password
If ssh doesn't work check the grp and own of .ssh/authorized_keys or check the name of the file...
Create a backup list
/root/rdiff-backups/backup-list-server
/home/ - /
Create an ssh alias to access the server
/root/.ssh/config
Host backup-server Hostname 192.168.10.91 User root Identityfile /root/.ssh/id_rsa_backup_raspberry Protocol 2
test the backup with:
rdiff-backup --force --include-globbing-filelist /root/rdiff-backups/backup-list-server / backup-server::/backup/raspberry/
Secure the ssh authentication
In /root/.ssh/authorized_keys add the following before 'ssh-rsa....'
command="rdiff-backup --server",from="raspberry.bluelight.av",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty
so the file's line looks like:
command="rdiff-backup --server",from="raspberry.bluelight.av",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-rsa AAA[......]3UV/ root@raspberry
Command line to remove old backup
rdiff-backup --remove-older-than 2W backup-server::/backup/raspberry/
6. Configure a LDAP Fat Server/Client
https://help.ubuntu.com/11.10/serverguide/C/openldap-server.html
http://ubuntuforums.org/showthread.php?t=1488232
https://help.ubuntu.com/community/NFSv4Howto
Install and configure LTSP
On the server:
if not done before configure the sources.list file to use the cache of the server:
sed -i 's#http://#http://192.168.10.1:3142/#g' /etc/apt/sources.list sed -i 's#http:/#http://192.168.10.1:3142/#g' /etc/apt/sources.list.d/medibuntu.list apt-get update
Install ltsp-server-standalone:
sudo apt-get install ltsp-server-standalone
Edit the installation option of ltsp-build-client:
# The chroot architecture. ARCH=i386 # ubuntu-desktop and edubuntu-desktop are tested. # If you test with [k|x]ubuntu-desktop, edit this page and mention if it worked OK. # kubuntu lucid (10.10) working okay. FAT_CLIENT_DESKTOPS="ubuntu-desktop" # Space separated list of programs to install. # The java plugin installation contained in ubuntu-restricted-extras # needs some special care, so let's use it as an example. LATE_PACKAGES=" ubuntu-restricted-extras gimp nfs-client " # This is needed to answer "yes" to the Java EULA. # We'll create that file in the next step. DEBCONF_SEEDS="/etc/ltsp/debconf.seeds" # This uses the server apt cache to speed up downloading. # This locks the servers dpkg, so you can't use apt on # the server while building the chroot. MOUNT_PACKAGE_DIR="/var/cache/apt/archives/"
Create and edit the following file for the unattented Java and msttcorefonts installation:
# Do you agree with the DLJ license terms? sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean true sun-java6-jre shared/accepted-sun-dlj-v1-1 boolean true # In order to install this package, you must accept the license terms, the # "TrueType core fonts for the Web EULA ". Not accepting will cancel the # installation. Do you accept the EULA license terms? ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula boolean true
If LTSP is install on an Oneiric system (otherwise go to the next step):
The fat client plugin blacklists some packages that don't make sense to have in a fat client chroot.
Unfortunately in Oneiric xdiagnose depends on one of those packages, apport, so the fat client plugin needs to be manually edited for ltsp-build-client to complete successfully.
Open the following file and remove the word "apport" from line 43:
/usr/share/ltsp/plugins/ltsp-build-client/Ubuntu/030-fat-client
Build the client (even if using the cache of the server some of the files will be downloaded on the internet, if a solution is found please update 
)
ltsp-build-client --mirror http://192.168.10.1:3142/archive.ubuntu.com/ubuntu --security-mirror http://192.168.10.1:3142/security.ubuntu.com/ubuntu --updates-mirror http://192.168.10.1:3142/archive.ubuntu.com/ubuntu
if this doesn't work you can always modify the configuration files:
emacs /usr/share/ltsp/plugins/ltsp-build-client/Ubuntu/000-basic-configuration emacs /usr/share/ltsp/plugins/ltsp-build-client/Ubuntu/010-updates-mirrors
You can use the fat chroot also to run thin clients, not only fat ones. This way you can have a mix of powerful and not powerful clients, that they will become "fat" or "thin" based upon their RAM (consider fat chroot a "superset" of a thin one, so thin boot uses only a small but common part of it). The parameter that affects the RAM threshold is:
FAT_RAM_THRESHOLD
that defaults to 300 (MB). So if you want your client boot as FAT ones only if they have more than 800MB edit lts.conf and put:
FAT_RAM_THRESHOLD=800
Another interesting feature is have a server's directory available to all the fat clients. For instance, to have the fat clients mount as their own /srv the /srv of the server add this parameter:
LOCAL_APPS_EXTRAMOUNTS=/srv
-------------------------
Install and configure DHCP
Configure /etc/network/interfaces
auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet static address 192.168.2.1 netmask 255.255.255.0 broadcast 192.168.2.255
cp /etc/ltsp/dhcpd.conf /etc/ltsp/dhcpd-backup.conf
emacs /etc/ltsp/dhcpd.conf
#
# Default LTSP dhcpd.conf config file.
#
#authoritative;
subnet 192.168.2.0 netmask 255.255.255.0 {
range 192.168.2.2 192.168.2.250;
option domain-name "LSTPtest.av";
option domain-name-servers 192.168.2.1;
option broadcast-address 192.168.2.255;
option routers 192.168.2.1;
# next-server 192.168.2.1;
# get-lease-hostnames true;
option subnet-mask 255.255.255.0;
option root-path "/opt/ltsp/i386";
if substring( option vendor-class-identifier, 0, 9 ) = "PXEClient" {
filename "/ltsp/i386/pxelinux.0";
} else {
filename "/ltsp/i386/nbi.img";
}
}
sudo /etc/init.d/networking restart
sudo /etc/init.d/isc-dhcp-server restart
If problems kill NetworkManager or even uninstall it as it interfere with the dhcp config.
killall NetworkManager
-----------------
Install and configure LDAP
Preparation
emacs /etc/hosts
127.0.0.1 localhost 127.0.1.1 server.bluelight.av server
emacs /etc/hostname
server
hostname -f
(reboot if necessary)
Installation
apt-get install slapd ldap-utils
Post-installation
cd /etc/ldap/
emacs add_content.ldif
ldapadd -x -D cn=admin,dc=bluelight,dc=av -W -f add_content.ldif
ldapsearch -x -LLL -b dc=bluelight,dc=av 'uid=john' cn gidNumber
Modifying the slapd Configuration Database
emacs uid_index.ldif
dn: olcDatabase={1}hdb,cn=config
add: olcDbIndex
olcDbIndex: uid eq,pres,sub
ldapmodify -Q -Y EXTERNAL -H ldapi:/// -f uid_index.ldif
emacs schema_convert.conf
include /etc/ldap/schema/core.schema include /etc/ldap/schema/collective.schema include /etc/ldap/schema/corba.schema include /etc/ldap/schema/cosine.schema include /etc/ldap/schema/duaconf.schema include /etc/ldap/schema/dyngroup.schema include /etc/ldap/schema/inetorgperson.schema include /etc/ldap/schema/java.schema include /etc/ldap/schema/misc.schema include /etc/ldap/schema/nis.schema include /etc/ldap/schema/openldap.schema include /etc/ldap/schema/ppolicy.schema include /etc/ldap/schema/ldapns.schema include /etc/ldap/schema/pmi.schema
mkdir ldif_output
slapcat -f schema_convert.conf -F ldif_output -n 0 | grep corba,cn=schema
(use the output for the next command)
slapcat -f schema_convert.conf -F ldif_output -n0 -H ldap:///cn={2}corba,cn=schema,cn=config -l cn=corba.ldif
emacs cn\=corba.ldif
#remove the {?} for the following lines
dn: cn=corba,cn=schema,cn=config ... cn: corba
#also delete the following lines
structuralObjectClass: olcSchemaConfig entryUUID: 52109a02-66ab-1030-8be2-bbf166230478 creatorsName: cn=config createTimestamp: 20110829165435Z entryCSN: 20110829165435.935248Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20110829165435Z
ldapadd -Q -Y EXTERNAL -H ldapi:/// -f cn\=corba.ldif
ldapsearch -Q -LLL -Y EXTERNAL -H ldapi:/// -b cn=schema,cn=config dn
Logging
emacs logging.ldif
dn: cn=config changetype: modify add: olcLogLevel olcLogLevel: stats
ldapmodify -Q -Y EXTERNAL -H ldapi:/// -f logging.ldif
emacs /etc/rsyslog.conf
#add the following lines at the end of the file
# Disable rate limiting (default is 200 messages in 5 seconds; below we make the 5 become 0) $SystemLogRateLimitInterval 0
service rsyslog restart
Replication
emacs provider_sync.ldif
# Add indexes to the frontend db.
dn: olcDatabase={1}hdb,cn=config
changetype: modify
add: olcDbIndex
olcDbIndex: entryCSN eq
-
add: olcDbIndex
olcDbIndex: entryUUID eq
#Load the syncprov and accesslog modules.
dn: cn=module{0},cn=config
changetype: modify
add: olcModuleLoad
olcModuleLoad: syncprov
-
add: olcModuleLoad
olcModuleLoad: accesslog
# Accesslog database definitions
dn: olcDatabase={2}hdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcHdbConfig
olcDatabase: {2}hdb
olcDbDirectory: /var/lib/ldap/accesslog
olcSuffix: cn=accesslog
olcRootDN: cn=admin,dc=bluelight,dc=av
olcDbIndex: default eq
olcDbIndex: entryCSN,objectClass,reqEnd,reqResult,reqStart
# Accesslog db syncprov.
dn: olcOverlay=syncprov,olcDatabase={2}hdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov
olcSpNoPresent: TRUE
olcSpReloadHint: TRUE
# syncrepl Provider for primary db
dn: olcOverlay=syncprov,olcDatabase={1}hdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov
olcSpNoPresent: TRUE
# accesslog overlay definitions for primary db
dn: olcOverlay=accesslog,olcDatabase={1}hdb,cn=config
objectClass: olcOverlayConfig
objectClass: olcAccessLogConfig
olcOverlay: accesslog
olcAccessLogDB: cn=accesslog
olcAccessLogOps: writes
olcAccessLogSuccess: TRUE
# scan the accesslog DB every day, and purge entries older than 7 days
emacs /etc/apparmor.d/local/usr.sbin.slapd
#add the following lines to the file
/var/lib/ldap/accesslog/ r, /var/lib/ldap/accesslog/** rwk,
sudo -u openldap mkdir /var/lib/ldap/accesslog
sudo -u openldap cp /var/lib/ldap/DB_CONFIG /var/lib/ldap/accesslog
sudo service apparmor reload
ldapadd -Q -Y EXTERNAL -H ldapi:/// -f provider_sync.ldif
service slapd restart
LDAP Authentication
apt-get install libnss-ldap
auth-client-config -t nss -p lac_ldap
pam-auth-update
User and Group Management
apt-get install ldapscripts
emacs /etc/ldapscripts/ldapscripts.conf
SERVER=192.168.10.49 BINDDN='cn=admin,dc=bluelight,dc=av' BINDPWDFILE="/etc/ldapscripts/ldapscripts.passwd" SUFFIX='dc=bluelight,dc=av' GSUFFIX='ou=Group' USUFFIX='ou=People' GIDSTART=2000 UIDSTART=2000 HOMESKEL="/etc/skel" HOMEPERMS="700" GTEMPLATE="" UTEMPLATE="" MTEMPLATE=""
sh -c "echo -n 'secret' > /etc/ldapscripts/ldapscripts.passwd"
chmod 400 /etc/ldapscripts/ldapscripts.passwd
emacs /usr/share/ldapscripts/runtime.debian
pamfile='/etc/ldap/ldap.conf'
#if the next command doesn't work compare the runtime file with the one from: http://ubuntuforums.org/showthread.php?t=1488232
ldapadduser geo users
Install and configure NFS
Apt-get install nfs-kernel-server
emacs /etc/exports
#add the following
/home 192.168.10.0/24(rw,async,no_subtree_check)
emacs /etc/security/group.conf
#add the following at the end of the file
gdm;*;*;Al0000-2400;plugdev,fuse,scanner,video,audio,lpadmin,cdrom,dip
emacs /etc/auth-client-config/profile.d/bl-ldap
[bl-ldap] nss_group=group: files ldap nss_passwd=passwd: files ldap nss_shadow=shadow: files ldap nss_netgroup=netgroup: nis pam_account=account sufficient pam_ldap.so account required pam_unix.so pam_auth=auth sufficient pam_ldap.so auth required pam_unix.so nullok_secure use_first_pass pam_password=password sufficient pam_ldap.so password required pam_unix.so nullok obscure min=4 max=8 md5 pam_session=session required pam_unix.so session required pam_mkhomedir.so skel=/etc/skel/ session optional pam_ldap.so session optional pam_foreground.so
auth-client-config -S > /etc/auth-client-config/profile.d/original
auth-client-config -p bl-ldap -a
emacs /etc/pam.d/gdm
#add before "@include common-auth"
auth optional pam_group.so
On the client:
Chroot in the client's system
Install and configure LDAP
following is working for clients using 8.04 and 8.10
install some software
aptitude install auth-client-config ldap-auth-client
provide the uri for the ldap server: ldap://192.168.10.1
provide the distinguished name: dc=bluelight,dc=av
LDAP version 3
Make local root database: yes
Does the LDAP database require login? no
LDAP account for root: cn=admin,dc=bluelight,dc=av
safe following as a file in /etc/auth-client-config/profile.d/bl-ldap
[bl-ldap]
nss_group=group: files ldap
nss_passwd=passwd: files ldap
nss_shadow=shadow: files ldap
nss_netgroup=netgroup: nis
pam_account=account sufficient pam_ldap.so
account required pam_unix.so
pam_auth=auth sufficient pam_ldap.so
auth required pam_unix.so nullok_secure use_first_pass
pam_password=password sufficient pam_ldap.so
password required pam_unix.so nullok obscure min=4 max=8 md5
pam_session=session required pam_unix.so
session required pam_mkhomedir.so skel=/etc/skel/
session optional pam_ldap.so
session optional pam_foreground.so
safe the current settings and tell pam to use ldap
auth-client-config -S > /etc/auth-client-config/profile.d/original auth-client-config -p bl-ldap -a
add following to /etc/security/group.conf
gdm;*;*;Al0000-2400;plugdev,fuse,scanner,video,audio,lpadmin,cdrom,dip
add following line to /etc/pam.d/gdm right before @include common-auth
auth optional pam_group.so
make sure that the ldap settings are correct, as specified in /etc/ldap.conf
base dc=bluelight,dc=av uri ldap://192.168.10.1 ldap_version 3 rootbinddn cn=admin,dc=bluelight,dc=av pam_password md5 nss_initgroups_ignoreusers avahi,avahi-autoipd,backup,bin,daemon,dhcpd,games,gdm,gnats,haldaemon,hplip,irc,klog,libuuid,list,lp,mail,man,messagebus,nbd,news,polkituser,proxy,pulse,root,saned,sshd,statd,sync,sys,syslog,uucp,www-data
little reminder, see following grep command to strip of the comments and newlines
grep -v -e ^$ -e ^# /etc/ldap.conf
Make the client ready for nfs
install the needed packets
aptitude install nfs-client
make the fstab ready for mounting the home directory
192.168.10.49:/export /home nfs4 _netdev,auto 0 0root@sam:/home/bl# emacs /etc/fstab