CentOS 7

Configure DHCP Server
2014-07-11 DNS / DHCP Server ·#CentOS 7
Configure DHCP ( Dynamic Host Configuration Protocol ) Server. Install and configure DHCP Server. [root@dlp …
Cron's Setting
2014-07-08 Install / Initial Config ·#CentOS 7
The regular jobs are controled by anacron by default. But anacron runs randomly in a day(at 3-22), so if …
Enable Dashboard
2019-06-12 Storage Server ·#CentOS 7
Enable Ceph Dashboard to manage Ceph Cluster on Web Console. This example is based on the environment like …
UEFI Boot
2018-02-03 Virtualization ·#CentOS 7
Boot Virtual Machines with using UEFI (Unified Extensible Firmware Interface). Install OVMF (Open Virtual …
Use SSH-Agent
2015-04-15 NTP / SSH Server ·#CentOS 7
Use SSH-Agent to automate inputting passphrase on key-pair authentication. It’s necessarry to set …
Configure DHCP Client
2014-07-11 DNS / DHCP Server ·#CentOS 7
Configure DHCP Client. DHCP Client uses 68/UDP. For CentOS Clients, Configure like follows. (Replace the …
CephFS + NFS-Ganesha
2019-06-12 Storage Server ·#CentOS 7
Install NFS-Ganesha to mount Ceph File System with NFS protocol. For example, Configure NFS Export setting to …
VMWare ESXi on KVM
2018-02-03 Virtualization ·#CentOS 7
Install VMWare ESXi on KVM Virtual Machine. Enable Nested KVM, refer to [1] of here . Update QEMU. [root@dlp …
Use Parallel SSH
2015-04-15 NTP / SSH Server ·#CentOS 7
Install Parallel SSH to connect to multiple hosts. Install PSSH. # install from EPEL [root@dlp ~]# yum …
Add or Remove OSDs
2019-06-12 Storage Server ·#CentOS 7
This is how to add or remove OSDs from exisiting Cluster. | +--------------------+ | | [dlp.srv.world] …