CentOS 8
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Initial Settings : Use Web Admin Console
2019/09/25
 
Cockpit Admin Console is installed with CentOS 8 Base Environment [Server] or others. It's possbile to manage your CentOS server on a Web browser to enable it.
[1] On console login prompt, as message is shown like [Activate the web console ***], it's possible to use Admin Console to enable it.
[root@dlp ~]#
systemctl enable --now cockpit.socket

[root@dlp ~]#
ss -napt

State    Recv-Q    Send-Q        Local Address:Port        Peer Address:Port
LISTEN   0         128                 0.0.0.0:22               0.0.0.0:*        users:(("sshd",pid=831,fd=6))
LISTEN   0         128                    [::]:22                  [::]:*        users:(("sshd",pid=831,fd=8))
LISTEN   0         128                       *:9090                   *:*        users:(("systemd",pid=1,fd=24))
# Cockpit listens 9090 port

# if Firewalld is running, confirm inbound settings (generally cockpit is allowed by default)

[root@dlp ~]#
firewall-cmd --list-service

cockpit dhcpv6-client ssh
# if [cockpit] is not allowed, set it to allow

[root@dlp ~]#
firewall-cmd --add-service=cockpit --permanent

success
[root@dlp ~]#
firewall-cmd --reload

success
[2] Access to [https://(server's hostname or IP address):9090/] with Web browser from localhost or Client compuer, then Cockpit login form is displayed like follows. Login with a local user on your Server. It shows to login with root user on this example.
[3] This is the Cockpit index page. It's possible to manage various system settings on here.
[4] For [Logs] on the left pane, it's possible to manage or opereate [Journal] service that is the log management tool.
[5] For [Storage] on the left pane, it's possible to manage or opereate Storages.
[6] For [Networking] on the left pane, it's possible to manage or opereate Network settings.
[7] For [Accounts] on the left pane, it's possible to manage or opereate system accounts.
[8] For [Services] on the left pane, it's possible to manage or opereate system services.
[9] For [Applications] on the left pane, it's possible to install or remove applications.
[10] For [Diagnostic Reports] on the left pane, it's possible to create or see System Diagnostic Reports.
[11] For [Kernel Dump] on the left pane, it's possible to see Kernel Dump status. (based on [kdump] service is running state)
[12] For [SELinux] on the left pane, it's possible to see SELinux alert logs. (based on SELinux enabled state)
[13] For [Software Updates] on the left pane, it's possible to confirm updates or run update packages.
[14] For [Terminal] on the left pane, it's possible to opereate system with commands directly.
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