Remove Unix User Expiry Date

To remove expiry date of a user's password the following command can be used:
usermod -e "" username
The command will change shadow file, not manually. The value of parameter -e can be a date to set a new expiry date.

.rhosts and remote login

To allow a username can be used for remote login and tools like rcp, in the home directory of that user should add a file .rhosts and add the trusted host name or ip in that. To allow all host can use + char.

A point should be considered is that the permissions of the owner of this file should be set. (chmod [700, 600,500,400] .rhosts).
-rwx------ 1 user1 other 20 Apr 13 17:39 .rhosts

Another file that is used by system to remote access after checking of .rhosts is /etc/hosts.equiv. Each recored line in this file contain hostname [username], means which user from which machine can access without password to this machine. Same as previous file + char can be used to indicate all host or/and all users.

Attend to this point that user is local user that exist in /etc/passwd of
server machine.

Unix Change Timezone & Cron Job

To change timzone in unix should set and export TZ variable
TZ=IRST-4:30
format of this variable value depends on platform.

The file /etc/TIMEZONE should be chnaged to reflex settings after reboot.

after changing the timezone cron task should be restarted to apply new timezone information,
/etc/init.d/cron stop
/etc/init.d/cron start

or kill /usr/bin/cron task and start it again.

Internal Causes of Call release in Siemens IN 7b

1 = unallocated (unassigned) number 2 = no route to specified transit network 3 = no route to destination 4 = send special information tone 5 = misdialled trunk prefix 6 = TCAP-Cause: missing customer record 16 = normal call clearing 17 = user busy 18 = no user responding 19 = no answer from user (user alerted) 21 = call rejected 22 = number changed 27 = destination out of order 28 = address incomplete 29 = facility rejected 31 = normal – unspecified 34 = no circuit available 38 = network out of order 41 = temporary failure 42 = switching equipment congestion 44 = requested channel not available 47 = resource unavailable – unspecified 50 = requested facility not subscribed

55 = incoming calls barred within CUG 57 = bearer capability not authorized 58 = bearer capability not presently available 63 = service/option not available – unspecified 65 = bearer capability not implemented 69 = requested facility not implemented 70 = only restricted information bearer capability is available 79 = service or option not implemented – unspecified 87 = called user not member of CUG 88 = incompatible destination 91 = invalid transit network selection 95 = invalid message, unspecified 97 = message type non-existent or not implemented 99 = par. non-existent or not implemented – discarded 103 = par. non-existent or not implemented – passed on 111 = protocol error, unspecified 127 = interworking, unspecified

Swap VoMS Application or Database Cluster

If we want to switch Siemens VoMSXpress application from one machine to another it's use scswitch command. Be informed this configuration uses Sun Cluster technology, in other technology such as Veritas it should be different.

1- chris application should be stopped and when starting the framework should run as last application
(/opt/xpress/SxFramework/scripts/Sx.sh SxFrameWork stop|start)

2- check sun cluster status
scstat
The status of cluster, like which app or db on which cluster, online or offline

Node name Status
--------- ------
Cluster node: voms1 Online
Cluster node: voms2 Online

3- Stop appropriate resource group
scswitch -F -g [rg_sxfwapp|rg_sxfwdb] (-F make offline)

4- Change primary node
scswitch -z -D [appvol|dbvol] -h [voms2|voms1] (-z change primary node)

5- Make resource online
scswitch -Z -g [rg_sxfwapp|rg_sxfwdb] (-Z make resources online)

6- Start chris application as mentioned above

Sending Double Message in Dialogic Sigtran

The problem of sending 2 or more message once you send 1 message from top of stack pretending to sctp. In new version of host software package(5.05) a new configuration command -CNTOS- is supported to setup timing for sctp and m2pa.

To prevent sending more than one same message the retransmission configuration of both side must be same. In dialogic side it's done by CNTOS command and RMIN(retransmission min) and RMAX(retransmission max) parameters. In cisco itp side can be seen by sh cs7 m3ua command.

Windows XP Timezone and Daylight Saving

Some useful information and a good tool to configure proper daylight saving configuration for windows:

http://support.microsoft.com/kb/914387

TZEdit can edit time zone information.