I want to know how to block bots from accessing my server?

I am getting many bot IP's in DHT or they are connecting to me from all over the world so IP block bans don't work.

The main bot I am having issues with is called "BM 0.0.0.1"

How do I block a peer with a client named "BM 0.0.0.1" or a Peer ID that starts with "-BM"??

It appears that this bot is trying to overflow a buffer.

I am trying to ignore them, but there are so many it is difficult!!!

FYI... The status code the bot is creating is called "metadata request overflow"

Is there a way to block misbehaving clients?

check out settings-transfers-files
https://support.tixati.com/client%20filter
Client Filter
This will open a window that lets you full configure the client filters that are applied to all transfers.  You can filter peers based on Client ID or their unique Peer ID.  Allows for whitelist / blacklist / exemption rules.

can you post screenshot in postimages.org and teach me how to identify such malicious peers?

In response to your question:

Here is an image showing status codes of misbehaving clients. I was having a large number of clients with the same status code of "metadata request overflow" as you will see in the image. Almost all of these errors were generated by the same client software which was mostly likely a bot. I have my own web space, so I will post the image there.
(link removed by Mod - please re-post the image with IP's blurred)

Here is the image with the IP's blacked out.
https://nyx.mynetblog.com/dl/Tixati-error-messages.png

will not click unless in postimages.org

To filter the BM/0.0.0.1 botnet, as well as its little cousin, the MC/0.0.0.8 botnet (which does the same thing but less aggressively), go to settings > peers > client filter > peer ID tab

and in the bottom box that says "never allow", copy and paste the following wildcard filters:

-BM0001-*
-MC0008-*

This will filter them by client ID, preventing them from ever connecting. They will still appear in the peer list, but they cannot waste your bandwidth or take up resources anymore.

I've been following this bot for a long time, and whoever is behind it is one evil SOB and likely attempting to sabotage BitTorrent DHT on a massive scale.