Setting up APC7920 PDU power distribution unit: IP address, web management HTTP, HTTPS, SSL, SSH
Donkey Learning IT
00:33 FIRST STEP (optional, do it only if you got a used unit)
04:13 SECOND STEP: SET UP IP ADDRESS VIA FIRMWARE TRAP
Setting an IP address on your PDU in the case if you do have a console cable is really easy. However, I assume that many people who have a new unit or a used one restored to factory defaults do not have such a proprietary serial cable. This is why the IP setup is done via an APC firmware trap using standard RJ45 ethernet, which should be available for all PDU owners. For the firmware trap, you first need to set up a static ARP entry on your computer connected to the network where the PDU is plugged in. First, check the MAC address of your PDU. Mine has the MAC address of 00:C0:B7:CC:70:F9. It should be printed at the bottom of the unit, or in the slip which came with the new PDU. Figure out the IP address of your PC plugged into the same network as the PDU you are trying to set up. Linux command: /sbin/ifconfig eth0 #(substitute eth0 with your ethernet interface) Windows command: ipconfig /all #(look through the output and search for your IP) Next, decide on an unused IP address which you would like to give to the PDU. Ping this IP address to make sure, that it is not being used. In my case I have picked 192.168.0.33. Both the Linux and Windows command is the same: ping 192.168.0.33
Next, on your PC you set up a static ARP entry. For this you need to become the Administrator user! On a Linux PC: arp -s 192.168.0.33 00:C0:B7:CC:70:F9 On a Windows PC: arp -s 192.168.0.33 00-C0-B7-CC-70-F9 The MAC address is not case sensitive, so you can use upper or lower-case.
Finally, we set the IP address via pinging it, using a specific packet size of 113Bytes, since the APC firmware trap has been set by the manufacturer to this specific packet type. On a Linux PC: ping 192.168.0.33 -s 113 On a Windows PC: ping 192.168.0.33 -l 113 On a Mac: ping -s 113 192.168.0.33
10:66 THIRD STEP: WEB MANAGEMENT SETUP, SSL AND HTTPS.
Open up a web-browser on the PC connected to your PDU, which now has an IP address set up on it. Paste into the address bar the IP address of your PDU, and open up an unencrypted HTTP session. Next, make sure, that you use some form of encryption. Although SSLv3 is no longer considered secure, it is still better than sending your precious passwords over a network through clear text. In newer web-browsers you will receive the SSL_ERROR_NO_CYPHER_OVERLAP, since the new browsers no longer allow you to override their security and use SSLv3. This is because SSLv3 has the so called Poodle vulnerability. Many old APC PDUs will not support newer encryptio ... https://www.youtube.com/watch?v=SPJvXvPEric
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