instruction
function
/help [Page]
Show Help
/gamemode [0/1/2]
Adjust the game mode
/op [player name]
set [player name] as manager
/deop [player name]
Remove admin rights for [player name]
/kick [player name]
kick [player name] out of the server
/ban [player name]
ban [player name]
/pardon [player name]
C
Managing multiple ESXi hosts through vCenter Server
Through the introduction in the previous three chapters, we already have some knowledge about virtualization. However, it is all basic things that make no sense in practical use. Starting from this chapter, we will officially step into the core of virtualization technology. Over time, we will learn more and more deeply.
Add multiple ESXi instancesHost join
Configure the KVM server to enable the VM to communicate with other hosts on the LAN
Initial Exploration of KVM Virtualization
EnvironmentOperating System: CentOS 6.7 64-bit graphical interface
ConfigurationKVM virtualization requires support from Intel VT or AMD-V technology. You can use the following command to determine whether the local CPU supports the above two Virtualization Technologies:
Egrep '(vmx
.
Option 2: Editing Files
Host Name Change
Before Solaris 7, check/edit:
/etc/inet/hosts/etc/nodename/etc/hostname.
WhereIs the name of the primary interface, e.g. bge0.
/etc/net/ticlts/hosts/etc/net/ticots/hosts/etc/net/ticotsord/hosts
Then reboot the system.
Solaris 7 to 9, check/edit:
/etc/inet/
system restarts, you also need to make the following settings:
# Vi/etc/rc. local
Add the following command
/Usr/share/denyhosts/daemon-control start
3. start
#/Usr/share/denyhosts/daemon-control start
If you want to enable automatic startup of DenyHosts after each restart, you also need to make the following settings:
# Cd/etc/init. d # ln-s/usr/share/denyhosts/daemon-control denyhosts # chkconfig -- add denyhosts # chkconfig -- level 345 denyhosts on
Then you can start it:
Service denyhosts s
# chkconfig -- level 345 denyhosts on
Then you can start it:
Service denyhosts start
DenyHosts configuration file:
Vi/etc/denyhosts. cfg
SECURE_LOG =/var/log/secure # ssh log file, which is determined based on this file.
HOSTS_DENY =/etc/hosts. deny # control user login files
PURGE_DENY = 5 m # How long will it take to clear prohibited
BLOCK_SERVICE = sshd # Name of the service to be banned
DENY_THRESHOLD_INVALID = 1 # number of failures allowed for
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