System

The system page provides management features for basic server configuration, including DNS, SWAP, hostname, and time settings.

DNS

Configure the system's DNS servers.

The page shows the current DNS manager detected on the system. If the manager is resolv.conf, the panel warns that DNS modifications will revert to default after a system restart.

Configuration Items

• DNS1: Primary DNS server address
• DNS2: Secondary DNS server address

Both DNS1 and DNS2 are required when saving.

Common DNS Servers

Provider	DNS1	DNS2
Alibaba Cloud	223.5.5.5	223.6.6.6
Tencent Cloud	119.29.29.29	119.28.28.28
114 DNS	114.114.114.114	114.114.115.115
Google	8.8.8.8	8.8.4.4
Cloudflare	1.1.1.1	1.0.0.1

SWAP

Manage the system's SWAP space.

The page displays current SWAP usage:

• System total
• Used
• Free

Configure Panel SWAP

Set the size of the SWAP file managed by the panel (unit: MB).

• Setting to 0 disables panel SWAP
• It is recommended to set based on server memory size, typically 1-2 times the memory

Tip

SWAP can provide additional virtual memory when physical memory is insufficient, but performance is lower than physical memory. For servers with sufficient memory, SWAP may not need to be enabled.

Host

Configure system hostname and Hosts file.

System Hostname

Modify the server's hostname, such as myserver, web-01, etc.

Hosts

Edit the system's /etc/hosts file for configuring local domain name resolution.

Common uses:

• Block specific domains
• Configure local development domains
• Speed up resolution of specific domains

Time

Configure system timezone and time synchronization.

Select Timezone

Select the server's timezone from the dropdown list, such as Asia/Shanghai.

Modify Time

Manually set the system time.

Note

After manually changing the time, automatic system time synchronization may still override the settings.

NTP Server

Specify the NTP server used by Synchronize Time. This is a one-off server for the synchronization action and is not persisted. Leave it empty to fall back to the panel's built-in servers (such as ntp.aliyun.com, ntp1.aliyun.com, ntp.tencent.com, time.windows.com, time.apple.com), which are probed automatically to pick the fastest reachable one.

Click Configure Default Servers to open the System NTP Server Configuration dialog, where you can manage the system's persistent NTP server list. The dialog detects whether the system uses Chrony or systemd-timesyncd and writes the change to its configuration. You can add or remove multiple servers, click Reset to Default to restore the built-in list, and Save to apply. At least one server is required.

If the panel cannot identify the time service, the dialog shows a warning that the NTP service could not be detected and asks you to ensure that Chrony or systemd-timesyncd is installed. In this case, install one of those services before persisting an NTP server list.

Action Buttons

• Save: Save the timezone and the manually set time
• Synchronize Time: Immediately synchronize the system time using the NTP server (or the built-in servers if left empty)