Unleash raw power with Contabo Dedicated Servers
Ad Experience unmatched reliability, global data center locations, and premium German engineering

FTP Server Test Online Tool

Execution date: Thu, 25 Sep 2025 14:43:50 GMT, server: mag-consulting.dyndns.org:21, mode: Active PASV, encryption: TLS enabled, test type: Query both.

IPv4 test results

OK
77.181.147.216
---- Resolving host address...
---- 1 address found: 77.181.147.216
---- Connecting to mag-consulting.dyndns.org (77.181.147.216) port 21
<--- 220 Willkommen auf backup.mag-consulting.de
---> AUTH TLS
<--- 234 Proceed with negotiation.
---> USER
Certificate: CN=Backup.mag-consulting
Issued by: CN=Backup.mag-consulting
WARNING: Certificate verification: Not trusted (66:81:F6:75:BF:A6:55:76:71:AF:32:DC:61:65:79:18:BE:E3:B7:E0)
WARNING: Certificate verification: certificate common name doesn't match requested host name 'mag-consulting.dyndns.org' (66:81:F6:75:BF:A6:55:76:71:AF:32:DC:61:65:79:18:BE:E3:B7:E0)
<--- 331 Please specify the password.
---> PASS
<--- 230 Login successful.
---> PWD
<--- 257 "/home/tkvbw" is the current directory
---> PBSZ 0
<--- 200 PBSZ set to 0.
---> PROT P
<--- 200 PROT now Private.
---> PORT 173,249,29,54,152,95
<--- 200 PORT command successful. Consider using PASV.
---> NLST
---- Accepted data connection from (77.181.147.216) port 20
<--- 150 Here comes the directory listing.
Certificate: CN=Backup.mag-consulting
Issued by: CN=Backup.mag-consulting
WARNING: Certificate verification: Not trusted (66:81:F6:75:BF:A6:55:76:71:AF:32:DC:61:65:79:18:BE:E3:B7:E0)
WARNING: Certificate verification: certificate common name doesn't match requested host name 'mag-consulting.dyndns.org' (66:81:F6:75:BF:A6:55:76:71:AF:32:DC:61:65:79:18:BE:E3:B7:E0)
---- Got EOF on data connection
---- Closing data socket
<--- 226 Directory send OK.
---> QUIT
<--- 221 Goodbye.
---- Closing control socket

IPv6 test results

Socket error (Permission denied)
2a02:3100:520b:8517:3681:c4ff:fe1d:5964
---- Resolving host address...
---- 1 address found: 2a02:3100:520b:8517:3681:c4ff:fe1d:5964
---- Connecting to mag-consulting.dyndns.org (2a02:3100:520b:8517:3681:c4ff:fe1d:5964) port 21
**** Socket error (Permission denied) - reconnecting
---- Closing control socket