The Status Menu

Select Status from the menu bar at the top of the screen.

The following links will appear in a submenu on the left side of the screen. They give detailed status information about various aspects of your Endian UTM Appliance:

• System status - services, resources, uptime, kernel
• Network status - configuration of network interfaces, routing table and ARP cache
• System graphs - graphs of resource usage
• Traffic Graphs - graphs of bandwidth usage
• Proxy graphs - graph of HTTP proxy access statistics during the last 24 hours
• Connections - list of all open TCP/IP connections
• OpenVPN connections - list of all OpenVPN connections
• SMTP mail statistics - graph of SMTP proxy filter statistics during the last day/week/month/year
• Mail queue - SMTP server’s mail queue

Each link will be explained individually in the following sections.

System status

Select Status from the menu bar at the top of the screen, then select System status from the submenu on the left side of the screen.

This screen is divided into the following sections (accessible via tabs or scrolling):

Services

lists the status of all the services installed on Endian UTM Appliance - a service might appear as STOPPED simply because the corresponding feature is not enabled.

Memory

this is the output of the Linux free command. The first bar shows the total used memory: it is normal for this value to be close to 100% for a long running system, since the Linux kernel uses all available RAM as disk cache. The second bar shows the memory actually used by processes: ideally this should be below 80% to keep some memory available for disk caching - if this value approaches 100%, the system will slow down because active processes are swapped to disk: you should consider upgrading RAM then. The third bar indicates the swap usage. For a long running system it is normal to see moderate swap usage (the value should be below 20%), especially if not all the services are used all the time.

Disk usage

this is the output of the Linux df command. It shows the used disk space for each disk partition (/, /boot and /var for a default install). / and /boot should be rather constant, /var grows while using the system.

Uptime and users

this is the output of the Linux w command. It reports the current time, information about how long your system has been running without a reboot, the number of shell users that are currently logged into the system (normally there should not be any) and the system load average for the past 1, 5 and 15 minutes. Additionally, if any shell user is logged into the system, some information about the user is displayed (such as the remote host from which he or she is logged in).

Loaded modules

this is the output of the Linux lsmod command. It shows the loaded kernel modules (the information is of interest to advanced users only).

Kernel version

this is the output of the Linux uname -r command. It shows the current kernel version.

Network status

Select Status from the menu bar at the top of the screen, then select Network status from the submenu on the left side of the screen.

This page shows the output of the Linux command ip addr show (Ethernet interfaces, bridges and virtual devices), the status of the network adapters (if available), the routing table and the ARP cache (MAC / IP addresses in the local LANs).

System graphs

Select Status from the menu bar at the top of the screen, then select System graphs from the submenu on the left side of the screen.

This page contains system resource graphs for the last 24 hours: CPU, memory, swap and disk usage. Clicking on one of the graphs will open a new page with the respective usage graphs for the last day, week, month and year.

Traffic graphs

Select Status from the menu bar at the top of the screen, then select Traffic graphs from the submenu on the left side of the screen.

This page contains traffic graphs for the last 24 hours. Clicking on one of the graphs will open a new page with traffic graphs for the last day, week, month and year of the chosen interface.

Proxy graphs

Select Status from the menu bar at the top of the screen, then select Proxy graphs from the submenu on the left side of the screen.

This page contains graphs with access statistics for the HTTP proxy during the last 24 hours.

Connections

Select Status from the menu bar at the top of the screen, then select Connections from the submenu on the left side of the screen.

This page shows the list of current connections from, to or going through Endian UTM Appliance. The source and destination of every connection are highlighted in the color of the zones they belong to. Additionally to the four zones (GREEN, RED,ORANGE, BLUE) that are defined by Endian UTM Appliance, two other colors are shown. BLACK is used for local connections on the firewall whereas PURPLE connections belong to virtual private networks (VPNs).

OpenVPN connections

Select Status from the menu bar at the top of the screen, then select OpenVPN connections from the submenu on the left side of the screen.

This page shows a list of OpenVPN connections. It is possible to kill or ban connected users by clicking on the kill or ban button respectively.

SMTP mail statistics

Select Status from the menu bar at the top of the screen, then select SMTP mail statistics from the submenu on the left side of the screen.

This page shows statistics of the SMTP traffic (sending email) through Endian UTM Appliance for the last day, week, month and year. This information is only available when the SMTP proxy is used.

Mail queue

Select Status from the menu bar at the top of the screen, then select Mail queue from the submenu on the left side of the screen.

This page shows the current email queue (only available when the SMTP proxy is used). It is also possible to flush the queue by clicking on the Flush mail queue button.