Environment Monitor

The environment monitor is positioned to read the temperature and humidity via a sensor mounted above the rack containing the correlator nodes. It has the ability to generate notifications when the registered temperature or humidity exceed thresholds.

Access

Telnet

$ Log into the the envmon by doing telnet> usno-envmon. The username and password are the same as the PDUs but must be obtained by contacting and administrator.

$ The terminal interface is a bit painful to use but appears to be functional and self-documenting; see the VNC access described below for a bit higher-level UI.

Web

Login to usno server

Either usno-serv-1t-ext or usno-serv-1-ext. E.g.
ssh admin@usno-serv-1t-ext

Start the VNC server

It will return the display it created (e.g. usno-serv-1:1). Make a note of the display number for later use.

vncserver

Set the password

Since it is possible that another sysadmin has used the admin account before you, you will want to set your own password for this vncserver.

vncpasswd

Start VNC client

On your local machine, start the VNC client. Here is where you will use the display number returned from vncserver above. E.g.
vncviewer -via admin@usno-serv-1-ext localhost:1

$ Launch a browser (Konqueror seems to work on the production system whereas Firefox does not) and then open http://usno-envmon; the https service is disable (and maybe not configured?).

$ Use the same username and password as for telnet. The web interface looks pretty straight-forward especially when compared to the CLI interface.

-- JimJacobs - 2019-02-04