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How to get one process’s port number?
If we want to check one program on one remote server, we need to know this server’s IP and port number. How to get this program’s port number in the remote server? # netstat -tulpn Remember to run this program with root permission since some programs can only be accessed by root. Read more: Linux…
List of all Xen hypervisor command line options
ByEric MaWhere can I find a list of all Xen hypervisor command line options that can be passed to Xen hypervisor during boot? This page lists all options of Xen hypervisor: Xen Hypervisor Command Line Options Read more: How to list and start VirtualBox VMs in command line in Linux? Deleting a Specific Line From a…
New Mingle Forum Class
ByQ AHi , Thank you for your recommendation for removing the canonical link for the forum page only. However, I am am not able to find the following code in the wpf.class.php and was hoping you let us know where we can find this class so that we can modify it accordingly. (Does -1260 refer to…
How to convert the dmesg timestamps to easier to read format on Linux?
ByEric MaThe dmesg results from newer Linux kernels show the timestamps. It seems the time in seconds since the kernel start time. How to convert the dmesg timestamps to the real time on Linux? The dmesg timestamp is the time in seconds since the kernel starting time. Later dmesg has an -T option: -T, –ctime Print…
Making dnf/yum Not Update Certain Packages
ByEric MaWe may not want to update some packages such the kernel on a stable server while updating the system. If we run “dnf update” or “yum update”, we may get suggested by dnf/yum to install all the packages with updates. In this post, how to make dnf/yum not update certain packages such the kernel when…
Hadoop Default Ports
ByEric MaHadoop’s namenode and datanodes expose a bunch of TCP ports used by Hadoop’s daemons to communicate to each other or listen directly to users’ requests. These ports information are needed by both the Hadoop users and cluster administrators to write programs or configure firewalls/gateways accordingly. A post written by Philip Zeyliger from Cloudera’s blog summarizes the…