Points to remember about run levels / milestones :
Runlevels are used in Solaris 9 to describe the set of services. "who -r" tells you which level you're in.
Starting from Solaris version 10, runlevels are replaced by milestones.
Run Levels in Solaris 8/9 :
S : Single user state (useful for recovery)
0 : Access Sun Firmware ( ok> prompt)
1 : System administrator mode
2 : Multi-user w/o NFS
3 : Multi-user with NFS
4 : Unused
5 : Completely shutdown the host (like performing a power-off @ OBP) [ thanks to Marco
6 : Reboot but depend upon initdefault entry in /etc/inittab
Different milestones in Solaris 10 :
single-user : Single User Mode
multi-user : Multi-User with/o NFS
multi-user-server : Multi-User with/o NFS
all : Starts all the services
none : Doe not start any services. Normally used for troubleshooting purposes.
Different states of services in SMF:
online : Service instance enabled and running.
offline : Service instance enabled, but not running due to some fault.
disabled : Service instace is disabled and not running.
maintenance : Service instance encountered an error, troubleshooting is required.
legacy_run : Legacy service (controlled by /etc/rcx.net scripts).
SMF can only monitor this service, but can't control it.
degraded : Service instance enabled but running at limited capacity.
uninitialized : This is the initial stat for all services before their configuration has been read.
Commands :
1. To list all the services and their status :
# svcs -a
2. To stop SSH service :
# svcadm disable -t network/ssh:default <--- Solaris 10
# /etc/init.d/sshd stop <--- Solaris 9
3. To start SSH service :
# svcadm enable -t network/ssh:default <--- Solaris 10
# /etc/init.d/sshd start <--- Solaris 9
4. To refresh SSH service :
# svcadm refresh -t network/ssh:default
<--- Solaris 10
# ps -ef | grep ssh
# kill -HUP pid <--- Solaris 9 5. To restart SSH service :
# svcadm restart -t network/ssh:default <--- Solaris 10
# /etc/init.d/sshd stop
# /etc/init.d/sshd start <--- Solaris 9
6. To find out what went wrong or the reason behind a service shutdown :
# svcs -x
7. To find out the dependents of a failed service :
# svcs -x -v
8. To find out the status and PID of a service :
# svcs -p network/smtp:sendmail
9. To find out the dependent services :
# svcs -d milestone/multi-user:default
10. To show on what service, the current service depends on :
# svcs -D network/smtp:sendmail
11. To view the detailed status of a service :
# svcs -v network/smtp:sendmail
12. To view the details of a service :
# svcs -l network/smtp:sendmail
13. To list all the internet services :
# inetadm
Note:
/etc/inet/inetd.conf is not used in Solaris 10.
14. To enable a internet service :
# inetadm -e network/telnet
15. To disable a internet service :
# inetadm -d network/telnet
16. To show the details of telnet service :
# inetadm -l network/telnet
17. To modify a property of ftp service :
# inetadm -m network/ftp exec="/usr/sbin/in.ftpd -l"
18. To change the default milestone (run level) :
# svcadm milestone -d milestone/single-user:default
In solaris 9, you have to change it in /etc/inittab.
19. To go to a milestone (run level) :
# svcadm milestone milestone/single-user:default
In solaris 9, # init 1
20. To boot a machine in single user mode from OK prompt :
ok> boot -m milestone=single-user
21. To boot a machine in multi user mode from OK prompt :
ok> boot -m milestone=multi-user
22. To restore SMF repository :
# /lib/svc/bin/restore_repository
23. Daemon that controls SMF :
While booting the system, svc.startd gets started via /etc/inittab and it starts the services based on the milestone selected.
how to start telnet service in solaris 10 when it is in maintanence mode I tried to disable,enable and restart by using svcadm command but it is not coming up so pls help me..
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