What is the difference between shutdown 18:00 and at 18:00 shutdown?
at 18:00 shutdown now and shutdown 18:00 , are they starting the same service? Do they work the same way?
centos
Why doesn’t my blockdev config change execute from rc.local on reboot
I am (probably obviously) a relatively new Linux user, so I’m already bracing for the barrage of “why aren’t you doing it this way instead…” comments. I’d love to hear them…but I would also really like to fundamentally understand why this isn’t working as is.
How to make NetworkManager add a DNS server at the top of /etc/resolv.conf?
Right now, my /etc/resolv.conf looks like this:
Process with weird random name consuming significant network and CPU resources. Is someone hacking me?
In a VM on a cloud provider, I’m seeing a process with weird random name. It consumes significant network and CPU resources.
Hard link permissions behavior different between CentOS 6 and CentOS 7
I’m getting a permissions error in CentOS 7 when I try to create a hard link. With the same permissions set in CentOS 6 I do not get the error. The issue centers on group permissions. I’m not sure which OS version is right and which is wrong.
Making “at” work on macOS
I am working on a CentOS server and schedule a task with command at
Commands for determining level of usage of server
I am scripting a new program that will connect to a cluster of machines in a VM park, and hopefully check their level of usage.
The VM clients are a combination of RHEL and CentOS, and runs on multiple KVM hosts.
Why the default eth0 interface is down by default on CentOS?
I am already a little bit familiar with Linux distros like Debian or Ubuntu (yeah, very similar) but I wanted to try Red Hat based – CentOS 6.2. I have installed it on my Windows 7 host in VirtualBox and tried to play with it a little.
Windows boot option is missing after installing CentOS 7, how can I get it back?
I recently installed CentOS 7 on a machine that has been running Windows 7. I did a dual boot installation and installed CentOS in a partition. But when I boot up my machine, it only gives me two CentOS options. It does not give me the option to choose to boot Windows 7. How can I add windows 7 back to the boot options?
How to change systemd service timeout value?
In the company I am working now there is a legacy service and its init script is using old SysvInit, but is running over systemd (CentOS 7).