For CentOS 6, run the following command to stop atop: service atop stop Introduction to kdump kdump is a feature of the Linux kernel that creates crash dumps in the event of a kernel crash. In the event of a kernel crash, kdump boots another Linux kernel and uses it to export an image...
A“LAMP” stack is a group of open source software that is typically installed together in order to enable a server to host dynamic websites and web apps written in PHP. This term is an acronym which represents theLinux operating system with theApache web server. The site data is...
The “Bad Gateway 502” error indicates that one server, acting as a proxy or remote server, fails to establish a connection to an upstream server. Usually, when you open a webpage, your browser sends an HTTP request to the server of the website. The hosting server then processes the re...
The first kernel reserves a section of memory that the second kernel uses to boot. Be aware that the memory reserved for the kdump kernel at boot time cannot be used by the standard kernel, which changes the actual minimum memory requirements of Red Hat Enterprise Linux. To compute the actua...
Red Hat Enterprise Linux 8 abrt Issue Repetitive crashes of an executable is shown in/var/log/messages. How to ignore theseABRTmessages? Raw /var/log/messages : Aug 29 12:04:40 hostname1 abrt[24468]: saved core dump of pid 24467 (/usr/libexec/fprintd) to /var/spool/abrt/ccpp-131458...
The output shows the status and performance information for each request message. Linux, macOS and other Unix-related OSes send continuous pings unless you limit the test. Use the-coption to specify the number of test messages, as seen in this command prompt: ...
So, I've edited the apt-mirror script (line 103) to specify my desired save location in the base-path configuration variable, which is probably not the best way to do it (I'm not a linux expert), but it seems to work (201GB downloading as I wri...
Although if you wish to check if a port is open then you should read Check open ports in Linux | Test firewall rules In this article we will cover different methods which can be used to test port connectivity between two or more Linux servers. We will use the term client and ...
How to Test Network Speed Between Two Linux Servers First, connect to the remote machine which you will use as theserver,and fire upiperf3in server mode using-sflag, it will listen to port5201by default. You can specify the format (k,m,gforKbits,Mbits,GbitsorK,M,GforKBytes,Mbytes,G...
speedtest.netby Ookla is a popular internet speed testing website. You probably have used it every time you needed to test your internet. Did you know that it has an official CLI application that does everything the website can do but from the comfort of your Linux terminal? Well, now ...