Solaris Admin Interview Questions

du -sk

#useradd -d /export/home/shiva -m shiva then add a user account in /export/home directory... then see the status of password shiva user by using this command #logins -x -l shiva Output: shiva 100 ...

here Im using useradd -d /etc/export/home/shiva -m shiva, its creating a shiva user ok but im not able to assign the passwd that particular shiva user. Im getting error is permission denied, here Im l...

You can also use given command:

prtconf | head -3 | grep Mem

Code
/usr/platform/sun4u/sbin/prtdiag -v

Raw device deals with sectors the smallest units in disks which is 512 Bytes

Block device deals with blocks which are 8 K Bytes each in Solaris.

/dev/dsk-block device /dev/rdsk -raw device

In /dev/rdsk if the data which is written did not used full 512bytes of a sector then for the next time we cannot use the left space.

where as /dev/dsk maintains a buffer memory from where the data is copied to disk so there is no loss of space.

Major number specify the specific device driver for that device.

Minor number specify the specific unit for that device.

Major Number: major number defines the device class.

Minor Number: minor number defines the members in that device class.

pkginfo -l nfs (pakage name)

By seeing the file /etc/default/nfs
by executing the command nfsstat-m

boot -s
fsck /dev/rdks/c1t0d0s0
#ufsdump 0uf /dev/rmt/0 /dev/rdsk/c1t0d0s0
for restore
#ufsrestore /dev/rmt/0 /

The arp command is used to manage entries in the ARP cache. To display the entries in the ARP cache, use the a option,

dladm show-dev
ifconfig -a (for configured LAN cards)

We can use below commands also to check how many LAN cards:
kstat -c net | grep net
/usr/platform/sun4u/sbin/prtdiag -v

#zoneadm -z nonglobalzonename list

netstat -p|grep SP

or



arp -a|grep SP

The arp command is used to manage entries in the ARP cache. To display the entries in the ARP cache, use the a option.
#arp -a

This command user in solaris for display all configure and not configure lan card who are connect in server.

Is Solaris the kernel is Dynamic as it is System V. We do not configure the kernel per say, we download and install a newer version. Saying that, we can modify the /etc/system file and adjust parameters like Oracle Memory, ensure tape drive device drivers get loaded, ect...

Normally to have the driver support

If you want to restart process with same PID then you can use pkill -HUP >

You cannot stop a process, you have to abort the process. But you can stop the services in Solaris 10 using svcadm command. A service may contain multiple processes

We cannot retrieve the data from crash. but we can analyze what made server or workstation crash provided the crash dumps should be enabled. we can send it oracle for review.Data can be retrieved if there is backup enabled

we can check the crash dump file. in /var/crash/hostname.xx0 ,or by dumpadm command we can find the path of crash file.

ifconfig qe0:1 10.10.1.150 netmask 255.255.255.0 broadcast + up

USE CMD ifconfig qe0 addiff 10.10.1.150 up

prtconf -vp|grep -i boot ----gives last booted device

who -b -------last booted time

eeprom boot-device----------gives boot device

df -h

#vi /etc/default/login
# CONSOLE=/dev/console (Only root can login)

CONSOLE=/dev/console (normal user can login and after that can do switch as root but directly root cant login from remote)

open, #vi /etc/default/profile

go to 18th line, and comment the line CONSOLE=/dev/console to: #CONSOLE=/dev/console

Now you can do telnet to remote pc as Root admin

Two way can do
1)#kbd -a (for enable|disable)
or
2)#Vi /etc/default/kbd
KEYBOARD_ABORT=disable

For temprary basis type command disable stop+Akbd -a disable
For permanent basis vi/etc/default/kb and edit keyboard_abort diable

Regards
Anupam
CMS Info Gurgaon

If we want change the host name permanently we have to change the entry in 3 files. Before changing 3 files first type the following command #hostname ----- here new host name is now we assign the nam...

for temp: #hostname
for permanent change :
entry in the following files:
cat /etc/nodename
cat /etc/hosts
cat /etc/inet/ipnodes
cat /etc/hostname.xxx0

we can create the extra volume by the soft partition methods like: metainit d701 -p d70 metainit d702 -p d70 after that format newfs /dev/md/rdsk/d701 newfs /dev/md/rdsk/c702 make entry in vfstab ...

metadb -a creates state database replicas (you can also create then using The Solaris Volume Manager software GUI) The syntax of the command is: metadb -a [-f] [-c n] [-l nnnn] disk_slice metainit ...

There are 3 types of device names: 1. Logical device names: Present in /dev and are soft links to physical device names in /devices. Used in command line (i.e., while...

c#t#d#s#
1.c# Controller number
2.t# Target number -- actually disk number
3.d# Disk number -- always d0 for SCSI disks.
4.s# Slice number