417 questions
When you run the sendmail command on Linux in a virtual environment, the following message appears:can't connect to remote host 127.00.1 Connection refusedCan I use the sendmail command to send mail f...
I tried to edit and restart the following files in CentOS, but I couldn't log in with sshroot, please let me know!!#This file controls the state of SELinux on the system.# SELINUX=can take one of thes...
I tried to install Linux, but it seems that I am using an SSD in m.2 and Linux does not recognize the SSD.Is there any solution?The model is XPS 13 Platinum.
I have a question about both PC (Windows, Mac, Linux) and smartphone (iOS, Android). Can I check the information I sent to the outside world or check the contents of what I'm going to send and block i...
What should I do if I want to change the default username when I installed Ubuntu Server 19.10 on Raspberry Pi 4?By default, the username is ubuntu and the password is ubuntu. I would like to change t...
Thank you for your help.If you run $sudo apt update on the Debian10 bash shell, you will get an error and I want to resolve it.Below is the terminal message.$sudo apt updateGet:1 http://security.debia...
I tried putting Linux CentOS in my spare computer to study the server, but it didn't work because the first boot stopped when the logo was displayed.When I looked it up and started in single mode, I f...
As a task runner, I often use Makefile.If you want to run a process that is interactive for a long time, then you might want to run exec.More specifically, if you add various options to docker run and...
This is when saving files with wget http://~.When wget in the background and saving multiple files, ls does not know which file is complete.Therefore, I would like to put _incomplete_ at the beginning...
Is there a KernelAPI in the FreeBSD API to determine which process is being used from the given virtual address?If possible, please let me know if you can do the same with the Linux Kernel API.Thank y...
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