On 03/05/2012 01:08 PM, Amit Sharma wrote:
Dear All,
Ours is a Software Development company where users desktops and most of the servers are Windows Based. I joined this company about 2 years back and have migrated few servers to Linux including Helpdesk System OTRS, ERP, Proxy, etc.
Now I have been given a task to prepare test lab for Linux Desktops using openSUSE (no specific reason for choosing openSUSE, may be it supports LTSP better that other I guess!. We do have plan to evaluate Thin Clients hardware as well).
IMHO, it is better to take informed decisions; guesswork can ruin your
as well F/OSS repute.
Idea is that at least trainees and support departments should be able to use
Linux with OpenOffice, etc.
I use/mount re-mastered Debian, LinuxMint and Ubuntu LiveCD/DVD images
and share the same as read only NFS shares for remote booting ...
# /etc/fstab
/boot/iso/debian-6.0.2-xfce-amd64-cd.iso /srv/live/debian64 iso9660
auto,ro,loop 0 0
/boot/iso/debian-6.0.2-xfce-i386-cd.iso /srv/live/debian iso9660
auto,ro,loop 0 0
/boot/iso/linuxmint-11-gnome-32bit-dvd.iso /srv/live/mint iso9660
auto,ro,loop 0 0
/boot/iso/ubuntu-11.10-gnome-i386-cd.iso /srv/live/ubuntu iso9660
auto,ro,loop 0 0
# /etc/exports
/srv/live/debian
192.168.1.0/255.255.255.0(ro,no_root_squash,no_subtree_check)
/srv/live/debian64
192.168.1.0/255.255.255.0(ro,no_root_squash,no_subtree_check)
/srv/live/mint 192.168.1.0/255.255.255.0(ro,no_root_squash,no_subtree_check)
/srv/live/ubuntu
192.168.1.0/255.255.255.0(ro,no_root_squash,no_subtree_check)
# /srv/tftp/pxelinux.cfg/default (relevant entries only)
LABEL debian
MENU LABEL Debian, XFCE, 32Bit (Remote/LiveCD)
KERNEL debian
APPEND initrd=debian.ilz root=/dev/nfs rw
nfsroot=192.168.1.3:/srv/live/debian boot=live config \
lang=us localtime nodhcp noeject nomodeset noprompt quiet splash startx
tz=Asia/Kolkata vga=788
LABEL debian64
MENU LABEL Debian, XFCE, 64Bit (Remote/LiveCD)
KERNEL debian64
APPEND initrd=debian64.ilz root=/dev/nfs rw
nfsroot=192.168.1.3:/srv/live/debian64 boot=live config \
lang=us localtime nodhcp noeject nomodeset noprompt quiet splash startx
tz=Asia/Kolkata vga=788
LABEL mint
MENU DEFAULT
MENU LABEL Linux^Mint, XFCE, 32Bit (Remote/LiveCD)
KERNEL mint
APPEND initrd=mint.ilz netboot=nfs nfsroot=192.168.1.3:/srv/live/mint
boot=casper nomodeset quiet \
splash tz=Asia/Kolkata vga=788 --
LABEL ubuntu
MENU LABEL ^Ubuntu, GNOME, 32Bit (Remote/LiveCD)
KERNEL ubuntu
APPEND initrd=ubuntu.ilz netboot=nfs
nfsroot=192.168.1.3:/srv/live/ubuntu boot=casper nomodeset \
quiet splash tz=Asia/Kolkata vga=788 --
Obviously, we need to run DHCP, TFTP and NFS servers/daemons, persistent
home directories can be auto-mounted provided we setup/run an L-DAP server.
I usually re-master the above said images for apt update/upgrade at
weekends.
I have migrated an entire corporate few years back from 100% Windows to 98%
Linux desktops and have fair idea of the entire process but their migration was
quite straight forward and combination of Linux plus WINE worked great.
Now I have few limitations and need your help. I am googling for the same and need you expert view and help on below:
1. Linux Desktops should be part of AD i.e. end users should be able to log into Linux Desktops using their windows ID and password. How do I do that?
I'm not sure, but I think this can be achieved using Samba, see also
L-DAP service.
2. We are using exchange server 2007, will Evolution be near to what MS Outlook
is?
I prefer Thunderbird (comes pre-installed) over Evolution and exim4 as
SMTP server.
3. Will Linux support LYNC?
Don't know what that LYNC thing is, sorry.
4. Single Sign On - Like IE support for most of our web based applications.
See if a 'Captive Portal for HotSpot authentication' serves your purpose
<http://www.zeroshell.net/eng/captiveportaldetails/>
5. What are other areas I should be aware of before submitting my plan to
management and take up this challenge!
A Gigabit Ethernet switch and NIC's for those machines which don't have
such functionality, though a fewer thin-clients have these kinds of
interfaces.
--
Balwinder S "bdheeman" Dheeman
(http://werc.homelinux.net/contact/)
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