Solaris Practice -3 [Random-Answers]

                 SOLARIS PRACTICE-3 [RANDOM-answers]

A daemon is a software process that runs in the background continuously and provides the

service to the client upon request

inodes free/used

root@sol-test-1:>/# df -F ufs -oi

root@sol-test-1:>/# df  -oi

root@sol-test-1:>/# ls -i

nfs version

root@sol-test-1:>/# nfsstat -a

root@sol-test-1:>/# modinfo |grep -i nfs

root@sol-test-1:>/# cat /etc/default/nfs

list files in current dir sorted by size

root@sol-test-1:>/# du -sk |sort -n

Process Stop & Process Run

pstop <pid> & prun <pid>

to disable STOP+A

kbd -a enable|disable

vi /etc/default/kbd

KEYBOARD_ABORT=disable (remove the #)

Corrupted passwd / shadow file

restore with /etc/opasswd and run the pwconv cmd

shared memory

ipcs -m

root@sol-test-1:>/# sysdef |grep -i shmmax

how many ram cards & in which slot

prtdiag

from where df -k fetch the info

/etc/mnttab

Not on system console

check - /etc/default/login   for

CONSOLE=/dev/console [ # this line]

info about all pkgs installed on system currently

/var/sadm/install/contents

touch & cat

if file already exists touch will change the timestamp otherwise creates a 0kb file

cat will create several 0kb file at atime/option to write in that file also

or generally to dump the contetnts of file to standard o/p

to know the machine id

#hostid

on x86 (serial id)   serial is a sticker on system to identify the machine serial no

#ipmitool fru

#smbios |grep -i serial

#prtfru (on sparc)

*the serial in banner is hostid in decimal, not the machine serial

cmd to rebuild the device tree

reboot -- -r

or

#touch /reconfigure then reboot

Or

#devfsadm   or #drvconfig 

interactive boot

boot –a

the root fs is full

tunefs -m0 /

or create  a mirror with larger disk.. and sync both... then detach and make the larger one primary

what is Generic_147441-01 in uname -a

147441 is kernel patch and -01 is patch rev no.

what if /etc/deleted ? no cdrom - no net boot

might be try boot -ar

interactive boot .. which will might be recreate the missing files..or restore it from bkp

pkts are delayed or dropped ?

netstat -i (ierrs or oerrs) if they are increasing means problem with packets

if prob found then chk with ndd that on which mode the nic is operating

half duplex or full duplex

vtoc resides on sec 0 ... then bootblk on 1-15....then super block in 16-31

vtoc stores the disk structure and organization...

bootblk stores the boot related info...

superblock stores the partition related info and

 No. of data blocks

· No.of cylinder groups

· Size of data block fragment

· Description of hardware

· Name of mount point

· File system state flag ( clean , stable , active , logging or unknown)

default boot device

#eeprom

#df -kh

#printenv boot-device

Reconfigure devices without reboot

devfsadm / drvconfig

system is 32bit or 64bit

isainfo -b   /   isainfo -kv

How to remove all current routes and assign 192.168.1.100 as default router?

# route flush

# route add default 192.168.1.100

How to change the network settings?

# sys-unconfig

What all does the NVRAM store?

Ethernet Address / Host ID / Time of Day (TOD) clock and EEPROM Parameters

Where are all the port numbers stored?

/etc/services

What are the different types of "file systems" in Solaris?

There are 3 Types of file system :

1) Disk based : ufs (standard unix), hsfs (cd-rom), pcfs (Floppy)

                          Or udf (DVD and CD Rom)

2) Distributed : NFS (enables sharing of files between many types of n/w)

3) Pseudo : tmpfs (temporary), swapfs , fdfs, procfs

Which command shows the users currently logged in to system?

who ( It reads the information from /var/adm/utmpx file)

Which command displays all login and logouts?

last (It reads the information from /var/adm/wtmpx file)