Querying Server Information

**Table 1** Querying server information
Related Information	Query Command
OS version of the server	cat /etc/os-release
Kernel version of the host system	uname -r
NUMA information	numactl
PCI device information	lspci
CPU information	lscpu cat /proc/cpuinfo
Memory usage	free cat /proc/meminfo
Drive storage	df -h cat /proc/loadavg cat /proc/partitions
System runtime load	uptime
Process information	top ps
I/O information	cat /proc/iomem cat /proc/ioports
System log information	/var/log/
System environment variables	env
Startup information	dmesg -T
Network status	ifconfig ping netstat tcpdump

If the host OS is openEuler 22.03, some ports of the firewall need to be enabled in the online gaming scenario. (The port number is defined by the game vendor. For example, the port used by Honor Of Kings is 50012.) Otherwise, the network may be abnormal and users may fail to sign in a game. Configure the firewall as follows:

Enable port 50012 (Honor Of Kings is used as an example).

firewall-cmd --zone=public --add-port=50012/tcp --permanent

Reload the firewall configuration.
```
firewall-cmd --reload
```

Parent topic: Routine O&M