Creating Zones in Solaris 10
Zone is a virtual machine in solaris which isolates the processes. There are two kind of zones possible
1. Global zone
2. Non-Global zone ( or simply ‘zones’ or ‘containers’).
The Non-Global zones are made from the global zones.
Now i gonna show, how to create zones in solaris 10. Lets get it started.
1. Create a separate filesystem for the zone if you want to….for my demo purpose, i’ll jus create a directory on my existing filesystem.
bash-3.00# mkdir /sunZone
bash-3.00# chmod 700 /sunZone/
2. Type in the following commands,
bash-3.00# zonecfg -z sunZone
sunZone: No such zone configured
Use ‘create’ to begin configuring a new zone.
zonecfg:sunZone> create
zonecfg:sunZone> set zonepath=/sunZone
zonecfg:sunZone> add net
zonecfg:sunZone:net> set physical=eri0
zonecfg:sunZone:net> set address=192.168.5.59
zonecfg:sunZone:net> end
zonecfg:sunZone> verify
zonecfg:sunZone> commit
zonecfg:sunZone> exit
3. You can also check all the configuration by typing info at the zone configuration mode.
zonecfg:sunZone> info
zonename: sunZone
zonepath: /sunZone/
brand: native
autoboot: false
bootargs:
pool:
limitpriv:
scheduling-class:
ip-type: shared
inherit-pkg-dir:
dir: /lib
inherit-pkg-dir:
dir: /platform
inherit-pkg-dir:
dir: /sbin
inherit-pkg-dir:
dir: /usr
net:
address: 192.168.5.59
physical: eri0
4. Now check whether the zone is created or not:
bash-3.00# zoneadm list -cv
ID NAME STATUS PATH BRAND IP
0 global running / native shared
- sunZone configured /sunZone native shared
There is a zone state model in solaris which depicts the current state of the zone. In the above output, the staus is configured. In later part of the demo, this will change to installed and running.
IP is showing as shared coz the sunZone also is using the same NIC as the global zone. One other possible value for the IP type is exclusive.
5. Now lets install the configured zone:
bash-3.00# zoneadm -z sunZone install
Preparing to install zone <sunZone>.
Creating list of files to copy from the global zone.
Copying <2552> files to the zone.
Initializing zone product registry.
Determining zone package initialization order.
Preparing to initialize <1113> packages on the zone.
Initializing package <426> of <1113>: percent complete: 38%
-
-
-
- This will go on for a while
-
-
Initialized <1113> packages on zone.
Zone <sunZone> is initialized.
The file </sunZone/root/var/sadm/system/logs/install_log> contains a log of the zone installation.
ID NAME STATUS PATH BRAND IP
0 global running / native shared
- sunZone installed /sunZone native shared
7. Boot the zone:
bash-3.00# zoneadm -z sunZone boot
now check the status, its should be in running.
8. Login to zone:
bash-3.00# zlogin -C sunZone
This will take u to the configuration steps like, root password, time zone, language etc.,
finish all the steps, you are done creating your first zone.
9. Logout from the zone.
press ‘ ~. ‘
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Here is the link for the Google Chrome web browser :
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Season 1 :
E1 – Genesis
E2 – Don’t look back
E3 – One Giant Leap
E4 – Collision
E5 – Hiros
E6 – Better Halves
E7 – Nothing to Hide
E8 – Seven Minutes to Midnight
E9 – Homecoming
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Perl program to convert hostnames to IPs
This little program will convert the list of hostnames inside the hostnames.txt to their respective IPs.
#!/usr/local/bin/perl
use Socket;
open(FILE,” hostnames.txt”);
die(“Couldn’t open the file”);
$name = <FILE>;
chop($name);
while($name ne “”){
$packed_address = gethostbyname($name); # returns ip in packed format.
unless($packed_address){
print “$name => ?\n”;
}
$unpacked_add = inet_ntoa($packed_address);
print “$name => $unpacked_add\n”;
$name = <FILE>;
chop($name);
}
Hostnames.txt
www.yahoo.com
prasannakumar.asdasdasd.com
www.google.com
Output :
www.yahoo.com => 209.191.93.52
prasannakumar.asdasdasd.com => ?
www.google.com => 66.52.32.12
Little Poem
A grade 5 teacher one day asked the children in her class to make rhymes with their names
First up was Dan. A very adventurous child.
My name is Dan,
When I grow up to be a man,
I want to go to India and Japan ,
If I can, If I can, If I can.
“Very good”, the teacher said to Dan. She then asked Sally that it was now her turn.
My name is Sally,
When I grow up to be a lady,
I want to have a baby
If I can, if I can, if I can.
“That is good Sally,” the teacher said. “But maybe one day you will change your mind.”
Next up was john. He was the best one in the class. Here is his rhyme:
My name is john,
When I grow up to be a man,
Never mind India and Japan ,
I’m gonna help Sally with her plan,
I know I can, I can, I can.
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Configuration Options
- Time format, database server, email program and much more can be set in the config file.
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