Virtual graphics card performance is too weak.we need to use real graphics card to improve display performance. Before starting passthough gpu...

Sometimes we what use harddisk in guest system passthough.So if the disk move to other machine.The data can read directly. We can check harddisk...

Proxmox VE is a complete open-source platform for all-inclusive enterprise virtualization that tightly integrates KVM hypervisor and LXC containers,...

Sometimes when we run ls to list files.There's only black background with white words.We can't see file/dir or executable easyly. There's a file...

Sometimes we need run some commands automatic when system boot up. We can put the command or script into /etc/rc.locallike:vi /etc/rc.localadd...

like windows has scheduled tasks.linux has crontab.it's a tool for excute tasks on time. how to install crontab?we can use yum.yum install...

what is lamp? lamp is linux+apache+mysql+php.They are all open source software and free. change your centos 7 yum source to a faster source and...

after I lock ftp user to stop them access system dir. some user get an error when they login. 500 OOPS: vsftpd: refusing to run with writable...

when I build this site.I need ftp to upload web files to the server space.And the upgrade of wordpress also need ftp. I found it dangerous if the...

this site is used to share some technology or funs of computer. like the first program of any code language. I want to say~ ...