> For the complete documentation index, see [llms.txt](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp.md).

# TCP

- [TCP 21: FTP](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-21-ftp.md)
- [TCP 22: SSH](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-22-ssh.md)
- [TCP 23: Telnet](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-23-telnet.md)
- [TCP 25, 587: SMTP](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-25-587-smtp.md)
- [TCP 53: DNS](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-53-dns.md)
- [TCP 80, 443: HTTP(S)](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-80-443-http.md)
- [TCP 88: Kerberos](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-88-kerberos.md)
- [TCP 110, 995: POP3(S)](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-110-995-pop3.md)
- [TCP 111: rpcbind](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-111-rpcbind.md)
- [TCP 135: MSRPC](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-135-msrpc.md)
- [TCP 139, 445: NetBIOS, SMB](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-139-445-netbios-smb.md)
- [TCP 143, 993: IMAP(S)](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-143-993-imap.md)
- [TCP 389, 636, 3268, 3269: LDAP](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-389-636-3268-3269-ldap.md)
- [TCP 1433, UDP 1434: MSSQL Server](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-1433-udp-1434-mssql-server.md)
- [TCP 2049: NFS](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-2049-nfs.md)
- [TCP 3306: MySQL](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-3306-mysql.md)
- [TCP 3389: RDP](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-3389-rdp.md)
- [TCP 5985: WinRM](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-5985-winrm.md)
- [TCP 6379: Redis](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-6379-redis.md)
- [TCP 27017: MongoDB](https://d4rk1337.gitbook.io/the-pentesters-cheat-sheet/services/tcp/tcp-27017-mongodb.md)