windows add route

run as adminrstrator
C:\Windows\system32>route add [ip destination] mask [255.255.255.0] [ip gateway] -p

Change HostName on Solaris11

=== check  hoostname ===
root@solaris11:~# svccfg -s system/identity:node listprop config
config                 application      
config/nodename       astring     solaris11
config/loopback       astring     solaris11

=== set new hostname ===
root@solaris11:~# svccfg -s system/identity:node setprop config/nodename="new-hostname"
root@solaris11:~# svccfg -s system/identity:node setprop config/loopback="new-hostname"

=== refresh property =====
root@solaris:~# svccfg -s system/identity:node refresh
=== restart servicce ====
root@solaris:~# svcadm restart system/identity:node

=== check new hoostname ===
root@solaris11:~# svccfg -s system/identity:node listprop config
config                 application      
config/nodename       astring     new-hostname
config/loopback       astring     new-hostname

block Null Session Attacks on Windows Server

Edit  registry:
HKLM/System/CurrentControlSet/Control/LSA
Value: RestrictAnonymous=1

show RPC port

for windows2008 and Windows2012

C:\Windows\system32>netsh int ipv4 show dynamicport udp

Protocol udp Dynamic Port Range

---------------------------------

Start Port      : 49152

Number of Ports : 16384

C:\Windows\system32>netsh int ipv4 show dynamicport tcp

Protocol tcp Dynamic Port Range

---------------------------------

Start Port      : 49152

Number of Ports : 16384

remove child domain no longer exists

ntdsutil: metadata cleanup
metadata cleanup:
metadata cleanup: connections
server connections:
server connections: connect to server serv1.domain01.com
Binding to serv1...
Connected to serv1 using credentials of locally logged on user
server connections:
server connections: quit
metadata cleanup:
metadata cleanup: select operation target
select operation target:
select operation target: list domains
Found 2 domain(s)
0 - DC=domain01,DC=com
1 - DC=child01,DC=domain01,DC=com
select operation target:
select operation target: select domain 1
No current site
Domain - DC=child01,DC=domain01,DC=com
No current server
No current Naming Context
select operation target:
select operation target: quit
metadata cleanup:
metadata cleanup: remove selected domain

Example lvm in LINUX

==This document is short note for lvm in LINUX==
[root@rhel64 /]#fdisk -l
[root@rhel64 /]#fdisk /dev/sdb1
[root@rhel64 /]#fdisk /dev/sdc1
[root@rhel64 /]#vgcreate vg1 /dev/sdb1 /dev/sdc1
[root@rhel64 /]#vgdisplay vg1
[root@rhel64 /]#lvcreate -L 14.98G -n testlv1 vg1
[root@rhel64 /]#mkfs.ext4 /dev/vg1/testlv1
[root@rhel64 /]#mount /dev/vg1/testlv1  /testlv1
===============






=====  online extend =====
[root@rhel64 /]#echo "- - -" > /sys/class/scsi_host/host3/scan
[root@rhel64 /]#fdisk /dev/sdd1
[root@rhel64 /]#vgextend vg1 /dev/sdd1
[root@rhel64 /]#lvextend -L 19G /dev/vg1/testlv1 
or
[root@rhel64 /]#lvextend -L +5G /dev/vg1/testlv1

[root@rhel64 /]#resize2fs /dev/vg1/testlv1

How check any clients are connected to NFS server

- Can use  command netstat |grep nfsd