Your SSH connection get cut or timeout while you were either updating or installing an application with apt-get? Don’t worry, these easy steps will get you out of trouble! 1. Try to run your command again : root@server:~# apt-get install <app_name> E: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable) E: Unable… Read More »
Getting this error message while trying to bring up your newly configured bridge interface on RHEL/CentOS Linux? You are missing “bridge-utils” package. Simply install it as followed and bring up the interface again : yum install bridge-utils NOTE : Click here to see our HowTO create a bridge interface article
Here is how to turn on user automatic logon for Windows 7 and Windows Server 2008. Windows 7 : Both options are available (using the GUI or directly modifying the registry as for Windows Server 2008). – Start > Run – Type “control userpasswords2” – Then click OK [x] > [ ] Uncheck the box… Read More »
On modern/latest Linux and Unix distributions, system rely on UUID rather than disk device name itself. To find out the UUID, you can use this simple command called “blkid” : blkid <DEVICE_PARTITION_NAME> Example : blkid /dev/sda1 Will return something like this : /dev/sda1: UUID=”1abd977f-65e0-46ab-b2bb-3651053c6e77″ TYPE=”ext4″
Seeing such message in your system logs? general protection rip:803886e rsp:ffc22690 error:0 This mean you have a hardware fault. Can be likely memory, but can be something else as well. *RIP is the 64 bit execution pointer.
To find out the network ports currently opened by running software on a Linux machine, simply use LSOF (list open files). This can also sort out the communication port as well. To display IPv4 ports : lsof -Pnl +M -i4 To display IPv6 ports : lsof -Pnl +M -i6
Here is how to change Windows serial number from command line. Open the command prompt first as administrator, then enter : slmgr.vbs -ipk <WINDOWS_SERIAL_NUMBER> Then, to activate : slmgr.vbs -ato
You might get this message launching VMware vSphere PowerCLI on your Windows workstation : The PowerShell execution policy of this computer is not set to “RemoteSigned”. This prevents execution of PowerShell scripts on your computer and will result in errors when VMware vSphere PowerCLI is invoked. It is recommended that you set the execution policy… Read More »
Here is a quicky how to change/modify the priority of a process on your system task scheduler. I will first explain how to change the priority of an existing process and then for new processes. 1. Find out the current priority either using “top” or with the specific process ID : ps -o pid,comm,nice -p… Read More »
If like a lot of sysadmin, you manage servers in a remote location and usual clean shutdown dosen’t work but you still have console access, there is a workaround to send an interrupt that will do exactly the same as you push the reset button. Since a reset on a heavy used server is never… Read More »