Articles by Gunjan

Error message in Vmware clone

December 19, 2014 // 0 Comments

While creating the clone from the current running VM which converted from Physical Server to Virtual Machine using Vmware converter tool version 10,  we are receiving the error message that “Software-ISO” is attached to Virtual Machine and we won’t be able to remove it from the “Edit Settings” option, to resolve the issue we have following two options. 1st) Login into the vSphere client via web browser and edit the VM settings 2nd)  Downloaded the .vmx file (using vSphere client) and change the following values From virtualHW.version = “10” To virtualHW.version = “8” Now upload the  .vmx file back to the VM folder on my VM’S  data store and finally remove the VM from the inventory and reconfigure it. 3rd) Simply open the .vmx file and change the entry From ide1:0.deviceType = “cdrom-image” ide1:0.fileName = “/vmfs/volumes/5438b851-441e953a-b57d-6cae8b2f6230/Software/CentOS-6.5-x86_64-bin-DVD1.iso” To ide1:0.deviceType = “atapi-cdrom” ide1:0.fileName = “emptyBackingString” [...]

Force to change password after 30 days in Samba server

December 13, 2014 // 0 Comments

The Samba Server is basically used to share the critical document between internal users, therefore its always better to secure the user account from the hackers Many time user won’t want to change the password as its difficult to remember new password but its security breach, therefore its always better to fore users to change the password after a month or days, in this post we are forcing users to change the password after a every 30 days, you can use the days value as per your requirement. pdbedit -P “maximum password age” -C 2592000   You can change the value from 2592000 to any days in above example to force the users to change the password, for more details about Samba Servers subscribe to our mailing list… pdbedit -P “maximum password age” -C your-number-of-days-value Note :: The value is in seconds , therefore make sure that you are using the correct values 30 Days = 2592000 [...]

Command to check AIX kernel mode

December 9, 2014 // 0 Comments

In AIX its important to know exactly which “kernel mode” we are using as its useful for server security and performance. Basically in AIX the symbolic link is used to define the “kernel mode” which is different as compare to other operating systems. In AIX three main “kernel mode” is available on every server, we can set the “kernel mode” as per requirement, The “kernel mode” symbolic link defined under the /unix directory , therefore we can change the “kernel mode” by removing the symbolic present under the /unix directory and create the new symbolic link as per “kernel mode” we want to set. To check the “kernel mode”, simply login into the Server as a root user and run the following commands from the shell. ls -l /unix It will show the following three possible outputs as per “kernel mode” defined on server. /unix -> /usr/lib/boot/unix_up    # The 32 bit uniprocessor kernel /unix -> /usr/lib/boot/unix_mp   # The 32 bit multiprocessor kernel /unix -> /usr/lib/boot/unix_64    #  The 64 bit multiprocessor kernel For example, if you want to change the “kernel mode” from 32 bit “kernel [...]
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