Webpage no longer displaying

RouterOS General
1

We have an old linux debian server which was setup before my time with the company.
It is used for 1 of our older websites and has been going strong for years.
However, yesterday I checked and the website is no longer resolving.

I checked dns and nothing has changed, checked the IP is still the same which it is.
I can even ping the website name and the ip of the website and both resolve just fine.

I can’t see anything in the firewall of the mikrotik that has change.

So why is the website not resolving any content or anything?

Is there anything else within the mikrotik that I would need to check? I have an RB850G.

2

Have you verified that the web server is running?
Plug a computer into the same LAN as the server and if needed give that computer a static IP on the correct LAN. See if you can get to the server by using the LAN IP (not the public internet IP). That eliminates anything outside of the server.

3

If you did not change the network configuration then why you thinking the problem is in the MikroTik? Check your server first.

4

The reason I thought it might be a firewall issue is that i can access the webpage within the office network without an issue.

Outside the office network i cannot access it.

5

Too little information. I suggest you to start regular diagnostics procedure which involves standard steps:

  • sniff traffic from the Internet port till the server port, at each point;
  • analyze the traffic;
  • if no issues, then proceed with investigation of the server.

This way I fixing many problems like this, related to abnormal behaviour of network devices and traffic flows.

6

That would have been useful information in the first place…
Export and post your config.
To export and paste your configuration (and I’m assuming you are using WebFig or Winbox), open a terminal window, and type (without the quotes) “/export hide-sensitive file=any-filename-you-wish”. Then open the files section and right click on the filename you created and select download in order to download the file to your computer. It will be a text file with whatever name you saved to with an extension of .rsc. Then in your message here, click the code display icon in the toolbar above the text entry (the code display icon is the 7th one from the left and looks like a square with a blob in the middle). Then paste the text from the file in between the two code words in brackets.