Install zfs on ubuntu
ZFS is only fully supported on 64 bit architectures from Ubuntu Xenial 16.04. ZFS is only supported for data storage, not the root system.
Docker security
Detaching from the container without stopping Ctrl-P Ctrl-Q
Using KVM on CentOS7
- Install CentOS7 with Virtualization Host feature
KVM clone Fedora network issue
After clone Fedora 24 VM, the is a network issue:
Show Linux route
route -nee
Securing Linux SSH
~~~shell
$ sudo vi /etc/ssh/sshd_config
Dns command, primary DNS server in domain
To change DNS from command line: dnscmd
Fedora 24 breaks dhcp on network with mac rules
If dhcp server assign ip based on MAC, Fedora 24 client can’t get the right IP.
How to install ZFS on Fedora 24
~~~shell
$ sudo dnf install http://download.zfsonlinux.org/fedora/zfs-release$(rpm -E %dist).noarch.rpm
Customize DNS nameservers with DHCP setting by NetworkManger on CentOS 7
By default, Network Manager always changes the resolv.conf file if the interface is using DHCP. The NetworkManger puts the records from DHCP server on top and the customize DNS servers at bottom. It causes private DNS setting cannot be found. To fix it, just change the PEERDNS=no in /etc/sysconfig/network-scripts/ifcfg-eth0 and restart network