# [Responder](https://github.com/lgandx/Responder)
Responder is a poisoner which can be used to poison many different protocols including
[[SMB]], Windows SQL Server, WebDav, LDAP, [[FTP]], POP3, IMAP, SMTP.
It can also serve as a rogue DHCP server, that poisons DNS settings.
![[Responder Write-up#^hsckx1]]
Kali comes with Responder preinstalled and can be run simply by calling `responder`.
Otherwise you need to fetch the repo and call the script using `python3`.
The interface Responder will listen on is configured using `-I`:
```sh
responder -I <interface name e.g. tun0>
```
## Hack The Box Machines
- [[Responder Write-up|Responder]]