Question 2: What command would you use to change to a different directory? What is an operating system? What is the primary use of the ping command? Question 5: What command deletes files and directories? What
The CMAN REST service (admittedly - HTTPS protocol, albeit in a subordinate position) for remote administration does not (yet) work in the container. It is not activated when CMAN recognizes a container environment at startup. In order to avoid having to restart the container ...
it and all its entries must be in the format expected by and acceptable to the cron daemon. If the file doesn't exist, thecrontabcommand invokes the editor. It uses thevirtual instrument fileeditor if theEDITORenvironment variable doesn't exist. If it does, the command invokes the specified...
sudo vi /etc/hosts If the user tries to run this command without includingsudoand does not have the necessary permissions, the host system will return a message stating that access is denied. By includingsudo, the user can now retrieve and edit the file's contents at the privileged level. ...
What does thettycommand do? It prints the name of the terminal you're using. TTY stands for "teletypewriter." What's the story behind the name of the command? That takes a bit more explaining. Teleprinters From the 1800s In the 1830s and 1840s, machines known asteleprinterswere develop...
In OSs such as Red Hat, CentOS, NeoKylin, BC-Linux, and Deepin, the irqbalance function does not take effect. As a result, interrupts concentrate on certain CPUs during the performance test, causing low IOPS. In this case, you can perform the following methods to bind interrupts to CPUs...
Alternatively, if we only want to see output in case of error, we use the -q option: $ pwck -q user 'saned': directory '/home/saned' does not exist In this case, there is a problem with a user’s home directory not existing. 5.2. Using the su Command Using the su command is ...
Linux Use a remote management tool, such as SecureFX or WinSCP, to log in to the server. Run the following command to check the memory usage of the server: free -m Check the value of free in the command output, as shown in Figure 1. If the value of available is smaller than ...
# Once again – this does no good for volume groups on a single # physical volume and you must never do this to rootvg. # Create a script in /tmp with the following contents # (e.g. vi /tmp/reorg.sh; chmod 755 /tmp/reorg.sh ) ...
How Does SNMP Monitoring Work? TheSNMP monitoring utilityis a central hub for retrieving data from SNMP agents on the monitored devices. The hub also serves as a recipient for any event messages sent from the device agent. However, although the devices contain an SNMP agent, it is considered...