{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreibdfx6uep3pytorqdy5tlskhrelisv73m7awqxh5blcpqwgewqa7i",
    "uri": "at://did:plc:qfsyszxhq5agxsg2n5zo4lno/app.bsky.feed.post/3mivjpoufmky2"
  },
  "path": "/t/ftp-connection-error/118197#post_7",
  "publishedAt": "2026-04-07T04:14:52.000Z",
  "site": "https://forum.infinityfree.com",
  "tags": [
    "infinityfree.com",
    "ftp.epizy.com",
    "ftpupload.net",
    "FileZilla",
    "ftp.infinityfree.com"
  ],
  "textContent": "other hosts and ftp clients work- maybe I should have said “the” other hosts work. connecting to infinityfree.com, ftp.epizy.com, and 185.27.134.11, were all successful using no encryption port 21. therefore not a firewall issue. also tried other FTP clients.\n\ntried with other FTP clients- trying to connect to ftpupload.net with other FTP clients. got the same issue.\n\nno, the issue is not limited to 1 particular FTP client. they all have this same issue.\n\nnote: other testing showed that infinityfree FTP servers require TLS 1.2 or better. some users may misconfigure FTP client and fail to connect with TLS 1.1 or TLS 1.0, and SSL 3.0 won’t even handshake.\n\nconnection log from WinSCP, normal verbosity\n\n. 2026-04-06 21:50:46.687 --------------------------------------------------------------------------\n(info about computer, user, paths, etc)\n. 2026-04-06 21:50:46.697 --------------------------------------------------------------------------\n. 2026-04-06 21:50:46.697 Session name: free/infinityfree.net (Modified site)\n. 2026-04-06 21:50:46.697 Host name: ftpupload.net (Port: 21)\n. 2026-04-06 21:50:46.697 User name: [REDACTED] (Password: Yes, Key file: No, Passphrase: No)\n. 2026-04-06 21:50:46.697 Transfer Protocol: FTP\n. 2026-04-06 21:50:46.697 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec\n. 2026-04-06 21:50:46.697 Disable Nagle: No\n. 2026-04-06 21:50:46.697 Proxy: None\n. 2026-04-06 21:50:46.697 Send buffer: 262144\n. 2026-04-06 21:50:46.697 UTF: Auto\n. 2026-04-06 21:50:46.697 FTPS: Explicit TLS/SSL [Client certificate: No]\n. 2026-04-06 21:50:46.697 FTP: Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]; HOST: Auto\n. 2026-04-06 21:50:46.697 Session reuse: Yes\n. 2026-04-06 21:50:46.697 TLS/SSL versions: TLSv1.2-TLSv1.3\n. 2026-04-06 21:50:46.697 Local directory: [REDACTED], Remote directory: /nuke.42web.io/htdocs, Update: Yes, Cache: Yes\n. 2026-04-06 21:50:46.697 Cache directory changes: Yes, Permanent: Yes\n. 2026-04-06 21:50:46.697 Recycle bin: Delete to: No, Overwritten to: No, Bin path:\n. 2026-04-06 21:50:46.697 Timezone offset: 0h 0m\n. 2026-04-06 21:50:46.697 --------------------------------------------------------------------------\n. 2026-04-06 21:50:46.747 Connecting to ftpupload.net …\n. 2026-04-06 21:50:48.957 Connection failed.\n\n  * 2026-04-06 21:50:49.007 (EFatal) Connection failed.\n  * 2026-04-06 21:50:49.007 Connection failed.\n\n\n\nconnection log from WinSCP, debug level 2 (most verbose)\n\n(same thing except the last paragraph)\n. 2026-04-06 21:52:47.287 --------------------------------------------------------------------------\n. 2026-04-06 21:52:47.287 Session upkeep\n. 2026-04-06 21:52:47.337 Connecting to ftpupload.net …\n. 2026-04-06 21:52:49.537 Connection closed\n. 2026-04-06 21:52:49.537 Connection failed.\n. 2026-04-06 21:52:49.537 Got reply 1004 to the command 1\n\n  * 2026-04-06 21:52:49.577 (EFatal) Connection failed.\n  * 2026-04-06 21:52:49.577 Connection failed.\n. 2026-04-06 21:52:50.737 Connection closed\n\n\n\nmaybe FileZilla has more information.\n\nconnection log from FileZilla, debug level = 0\n\n2026-04-06 22:07:36 3140 1 Status: Resolving address of ftpupload.net\n2026-04-06 22:07:39 3140 1 Status: Connection attempt failed with “EAI_NONAME - Neither nodename nor servname provided, or not known”.\n2026-04-06 22:07:39 3140 1 Error: Could not connect to server\n2026-04-06 22:07:39 3140 1 Status: Waiting to retry…\n2026-04-06 22:07:44 3140 1 Status: Resolving address of ftpupload.net\n2026-04-06 22:07:46 3140 1 Status: Connection attempt failed with “EAI_NONAME - Neither nodename nor servname provided, or not known”.\n2026-04-06 22:07:46 3140 1 Error: Could not connect to server\n\nconnection log from FileZilla, debug level = 4\n\n2026-04-06 22:09:17 3140 1 Status: Disconnected from server\n2026-04-06 22:09:17 3140 1 Trace: CRealControlSocket::DoClose(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:17 3140 1 Trace: CFtpControlSocket::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CRealControlSocket::DoClose(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:17 3140 1 Trace: CFtpControlSocket::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:17 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(0)\n2026-04-06 22:09:17 3140 1 Trace: CControlSocket::SendNextCommand()\n2026-04-06 22:09:17 3140 1 Trace: CFtpLogonOpData::Send() in state 0\n2026-04-06 22:09:17 3140 1 Status: Resolving address of ftpupload.net\n2026-04-06 22:09:20 3140 1 Status: Connection attempt failed with “EAI_NONAME - Neither nodename nor servname provided, or not known”.\n2026-04-06 22:09:20 3140 1 Trace: CRealControlSocket::OnSocketError(11001)\n2026-04-06 22:09:20 3140 1 Trace: CRealControlSocket::DoClose(66)\n2026-04-06 22:09:20 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:20 3140 1 Trace: CFtpControlSocket::ResetOperation(66)\n2026-04-06 22:09:20 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:20 3140 1 Trace: CFtpLogonOpData::Reset(66) in state 1\n2026-04-06 22:09:20 3140 1 Error: Could not connect to server\n2026-04-06 22:09:20 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:20 3140 1 Status: Waiting to retry…\n2026-04-06 22:09:25 3140 1 Trace: CRealControlSocket::DoClose(66)\n2026-04-06 22:09:25 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:25 3140 1 Trace: CFtpControlSocket::ResetOperation(66)\n2026-04-06 22:09:25 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:25 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:25 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:25 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:25 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n2026-04-06 22:09:25 3140 1 Trace: CControlSocket::SendNextCommand()\n2026-04-06 22:09:25 3140 1 Trace: CFtpLogonOpData::Send() in state 0\n2026-04-06 22:09:25 3140 1 Status: Resolving address of ftpupload.net\n2026-04-06 22:09:27 3140 1 Status: Connection attempt failed with “EAI_NONAME - Neither nodename nor servname provided, or not known”.\n2026-04-06 22:09:27 3140 1 Trace: CRealControlSocket::OnSocketError(11001)\n2026-04-06 22:09:27 3140 1 Trace: CRealControlSocket::DoClose(66)\n2026-04-06 22:09:27 3140 1 Trace: CControlSocket::DoClose(66)\n2026-04-06 22:09:27 3140 1 Trace: CFtpControlSocket::ResetOperation(66)\n2026-04-06 22:09:27 3140 1 Trace: CControlSocket::ResetOperation(66)\n2026-04-06 22:09:27 3140 1 Trace: CFtpLogonOpData::Reset(66) in state 1\n2026-04-06 22:09:27 3140 1 Error: Could not connect to server\n2026-04-06 22:09:27 3140 1 Trace: CFileZillaEnginePrivate::ResetOperation(66)\n\nlooks like debug level 0 was enough to determine the sole issue (fail to resolve ftpupload.net)\n\nwhat are the results from the other hosts\n\nconnection log from FileZilla, debug level = 0 for ftp.infinityfree.com\n\n2026-04-06 23:00:27 4996 1 Status: Resolving address of ftp.infinityfree.com\n2026-04-06 23:00:28 4996 1 Status: Connecting to 185.27.134.11:21…\n2026-04-06 23:00:28 4996 1 Status: Connection established, waiting for welcome message…\n2026-04-06 23:00:28 4996 1 Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------\n2026-04-06 23:00:28 4996 1 Response: 220-You are user number 5995 of 6900 allowed.\n2026-04-06 23:00:28 4996 1 Response: 220-Local time is now 23:00. Server port: 21.\n2026-04-06 23:00:28 4996 1 Response: 220-This is a private system - No anonymous login\n2026-04-06 23:00:28 4996 1 Response: 220 You will be disconnected after 60 seconds of inactivity.\n2026-04-06 23:00:28 4996 1 Command: AUTH TLS\n2026-04-06 23:00:28 4996 1 Response: 234 AUTH TLS OK.\n2026-04-06 23:00:28 4996 1 Status: Initializing TLS…\n2026-04-06 23:00:30 4996 1 Status: TLS connection established.\n2026-04-06 23:00:30 4996 1 Command: USER [REDACTED]\n2026-04-06 23:00:31 4996 1 Response: 331 User [REDACTED] OK. Password required\n2026-04-06 23:00:31 4996 1 Command: PASS ***************\n2026-04-06 23:00:31 4996 1 Response: 230-Your bandwidth usage is restricted\n2026-04-06 23:00:31 4996 1 Response: 230-This server supports FXP transfers\n2026-04-06 23:00:31 4996 1 Response: 230 OK. Current restricted directory is /\n2026-04-06 23:00:31 4996 1 Command: SYST\n2026-04-06 23:00:31 4996 1 Response: 215 UNIX Type: L8\n2026-04-06 23:00:31 4996 1 Command: FEAT\n2026-04-06 23:00:31 4996 1 Response: 211-Extensions supported:\n2026-04-06 23:00:31 4996 1 Response: UTF8\n2026-04-06 23:00:31 4996 1 Response: EPRT\n2026-04-06 23:00:31 4996 1 Response: IDLE\n2026-04-06 23:00:31 4996 1 Response: MDTM\n2026-04-06 23:00:31 4996 1 Response: SIZE\n2026-04-06 23:00:31 4996 1 Response: MFMT\n2026-04-06 23:00:31 4996 1 Response: REST STREAM\n2026-04-06 23:00:31 4996 1 Response: MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;\n2026-04-06 23:00:31 4996 1 Response: MLSD\n2026-04-06 23:00:31 4996 1 Response: PRET\n2026-04-06 23:00:31 4996 1 Response: AUTH TLS\n2026-04-06 23:00:31 4996 1 Response: PBSZ\n2026-04-06 23:00:31 4996 1 Response: PROT\n2026-04-06 23:00:31 4996 1 Response: ESTA\n2026-04-06 23:00:31 4996 1 Response: PASV\n2026-04-06 23:00:31 4996 1 Response: EPSV\n2026-04-06 23:00:31 4996 1 Response: SPSV\n2026-04-06 23:00:31 4996 1 Response: ESTP\n2026-04-06 23:00:31 4996 1 Response: 211 End.\n2026-04-06 23:00:31 4996 1 Command: OPTS UTF8 ON\n2026-04-06 23:00:31 4996 1 Response: 504 Unknown command\n2026-04-06 23:00:31 4996 1 Command: PBSZ 0\n2026-04-06 23:00:32 4996 1 Response: 200 PBSZ=0\n2026-04-06 23:00:32 4996 1 Command: PROT P\n2026-04-06 23:00:32 4996 1 Response: 200 Data protection level set to “private”\n2026-04-06 23:00:32 4996 1 Status: Logged in\n2026-04-06 23:00:32 4996 1 Status: Retrieving directory listing…\n2026-04-06 23:00:32 4996 1 Command: PWD\n2026-04-06 23:00:32 4996 1 Response: 257 “/” is your current location\n2026-04-06 23:00:32 4996 1 Command: TYPE I\n2026-04-06 23:00:32 4996 1 Response: 200 TYPE is now 8-bit binary\n2026-04-06 23:00:32 4996 1 Command: PASV\n2026-04-06 23:00:32 4996 1 Response: 227 Entering Passive Mode (185,27,134,11,89,24)\n2026-04-06 23:00:32 4996 1 Command: MLSD\n2026-04-06 23:00:33 4996 1 Response: 150 Accepted data connection\n2026-04-06 23:00:34 4996 1 Response: 226 11 matches total\n2026-04-06 23:00:34 4996 1 Status: Directory listing of “/” successful\n2026-04-06 23:00:37 4996 1 Status: Disconnected from server\n\nconnection log from FileZilla, debug level = 0 for 185.27.134.11\n\n2026-04-06 23:02:02 3624 1 Status: Connecting to 185.27.134.11:21…\n2026-04-06 23:02:03 3624 1 Status: Connection established, waiting for welcome message…\n2026-04-06 23:02:03 3624 1 Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------\n2026-04-06 23:02:03 3624 1 Response: 220-You are user number 6412 of 6900 allowed.\n2026-04-06 23:02:03 3624 1 Response: 220-Local time is now 23:02. Server port: 21.\n2026-04-06 23:02:03 3624 1 Response: 220-This is a private system - No anonymous login\n2026-04-06 23:02:03 3624 1 Response: 220 You will be disconnected after 60 seconds of inactivity.\n2026-04-06 23:02:03 3624 1 Command: AUTH TLS\n2026-04-06 23:02:03 3624 1 Response: 234 AUTH TLS OK.\n2026-04-06 23:02:03 3624 1 Status: Initializing TLS…\n2026-04-06 23:02:06 3624 1 Status: TLS connection established.\n2026-04-06 23:02:06 3624 1 Command: USER [REDACTED]\n2026-04-06 23:02:06 3624 1 Response: 331 User [REDACTED] OK. Password required\n2026-04-06 23:02:06 3624 1 Command: PASS ***************\n2026-04-06 23:02:26 3624 1 Response: 230-Your bandwidth usage is restricted\n2026-04-06 23:02:26 3624 1 Response: 230-This server supports FXP transfers\n2026-04-06 23:02:26 3624 1 Response: 230 OK. Current restricted directory is /\n2026-04-06 23:02:26 3624 1 Command: SYST\n2026-04-06 23:02:26 3624 1 Response: 215 UNIX Type: L8\n2026-04-06 23:02:26 3624 1 Command: FEAT\n2026-04-06 23:02:26 3624 1 Response: 211-Extensions supported:\n2026-04-06 23:02:26 3624 1 Response: UTF8\n2026-04-06 23:02:26 3624 1 Response: EPRT\n2026-04-06 23:02:26 3624 1 Response: IDLE\n2026-04-06 23:02:26 3624 1 Response: MDTM\n2026-04-06 23:02:26 3624 1 Response: SIZE\n2026-04-06 23:02:26 3624 1 Response: MFMT\n2026-04-06 23:02:26 3624 1 Response: REST STREAM\n2026-04-06 23:02:26 3624 1 Response: MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;\n2026-04-06 23:02:26 3624 1 Response: MLSD\n2026-04-06 23:02:26 3624 1 Response: PRET\n2026-04-06 23:02:26 3624 1 Response: AUTH TLS\n2026-04-06 23:02:26 3624 1 Response: PBSZ\n2026-04-06 23:02:26 3624 1 Response: PROT\n2026-04-06 23:02:26 3624 1 Response: ESTA\n2026-04-06 23:02:26 3624 1 Response: PASV\n2026-04-06 23:02:26 3624 1 Response: EPSV\n2026-04-06 23:02:26 3624 1 Response: SPSV\n2026-04-06 23:02:26 3624 1 Response: ESTP\n2026-04-06 23:02:26 3624 1 Response: 211 End.\n2026-04-06 23:02:26 3624 1 Command: OPTS UTF8 ON\n2026-04-06 23:02:27 3624 1 Response: 504 Unknown command\n2026-04-06 23:02:27 3624 1 Command: PBSZ 0\n2026-04-06 23:02:27 3624 1 Response: 200 PBSZ=0\n2026-04-06 23:02:27 3624 1 Command: PROT P\n2026-04-06 23:02:27 3624 1 Response: 200 Data protection level set to “private”\n2026-04-06 23:02:27 3624 1 Status: Logged in\n2026-04-06 23:02:27 3624 1 Status: Retrieving directory listing…\n2026-04-06 23:02:27 3624 1 Command: PWD\n2026-04-06 23:02:27 3624 1 Response: 257 “/” is your current location\n2026-04-06 23:02:27 3624 1 Command: TYPE I\n2026-04-06 23:02:27 3624 1 Response: 200 TYPE is now 8-bit binary\n2026-04-06 23:02:27 3624 1 Command: PASV\n2026-04-06 23:02:28 3624 1 Response: 227 Entering Passive Mode (185,27,134,11,136,34)\n2026-04-06 23:02:28 3624 1 Command: MLSD\n2026-04-06 23:02:28 3624 1 Response: 150 Accepted data connection\n2026-04-06 23:02:29 3624 1 Response: 226 11 matches total\n2026-04-06 23:02:29 3624 1 Status: Directory listing of “/” successful\n2026-04-06 23:02:36 3624 1 Status: Disconnected from server\n\nconnection log from FileZilla, debug level = 0 for ftp.epizy.com\n\n2026-04-06 23:03:44 512 1 Status: Resolving address of ftp.epizy.com\n2026-04-06 23:03:44 512 1 Status: Connecting to 185.27.134.11:21…\n2026-04-06 23:03:45 512 1 Status: Connection established, waiting for welcome message…\n2026-04-06 23:03:45 512 1 Response: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------\n2026-04-06 23:03:45 512 1 Response: 220-You are user number 5368 of 6900 allowed.\n2026-04-06 23:03:45 512 1 Response: 220-Local time is now 23:03. Server port: 21.\n2026-04-06 23:03:45 512 1 Response: 220-This is a private system - No anonymous login\n2026-04-06 23:03:45 512 1 Response: 220 You will be disconnected after 60 seconds of inactivity.\n2026-04-06 23:03:45 512 1 Command: AUTH TLS\n2026-04-06 23:03:45 512 1 Response: 234 AUTH TLS OK.\n2026-04-06 23:03:45 512 1 Status: Initializing TLS…\n2026-04-06 23:03:47 512 1 Status: TLS connection established.\n2026-04-06 23:03:47 512 1 Command: USER [REDACTED]\n2026-04-06 23:03:47 512 1 Response: 331 User [REDACTED] OK. Password required\n2026-04-06 23:03:47 512 1 Command: PASS ***************\n2026-04-06 23:03:47 512 1 Response: 230-Your bandwidth usage is restricted\n2026-04-06 23:03:47 512 1 Response: 230-This server supports FXP transfers\n2026-04-06 23:03:47 512 1 Response: 230 OK. Current restricted directory is /\n2026-04-06 23:03:47 512 1 Command: SYST\n2026-04-06 23:03:48 512 1 Response: 215 UNIX Type: L8\n2026-04-06 23:03:48 512 1 Command: FEAT\n2026-04-06 23:03:48 512 1 Response: 211-Extensions supported:\n2026-04-06 23:03:48 512 1 Response: UTF8\n2026-04-06 23:03:48 512 1 Response: EPRT\n2026-04-06 23:03:48 512 1 Response: IDLE\n2026-04-06 23:03:48 512 1 Response: MDTM\n2026-04-06 23:03:48 512 1 Response: SIZE\n2026-04-06 23:03:48 512 1 Response: MFMT\n2026-04-06 23:03:48 512 1 Response: REST STREAM\n2026-04-06 23:03:48 512 1 Response: MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*;\n2026-04-06 23:03:48 512 1 Response: MLSD\n2026-04-06 23:03:48 512 1 Response: PRET\n2026-04-06 23:03:48 512 1 Response: AUTH TLS\n2026-04-06 23:03:48 512 1 Response: PBSZ\n2026-04-06 23:03:48 512 1 Response: PROT\n2026-04-06 23:03:48 512 1 Response: ESTA\n2026-04-06 23:03:48 512 1 Response: PASV\n2026-04-06 23:03:48 512 1 Response: EPSV\n2026-04-06 23:03:48 512 1 Response: SPSV\n2026-04-06 23:03:48 512 1 Response: ESTP\n2026-04-06 23:03:48 512 1 Response: 211 End.\n2026-04-06 23:03:48 512 1 Command: OPTS UTF8 ON\n2026-04-06 23:03:48 512 1 Response: 504 Unknown command\n2026-04-06 23:03:48 512 1 Command: PBSZ 0\n2026-04-06 23:03:48 512 1 Response: 200 PBSZ=0\n2026-04-06 23:03:48 512 1 Command: PROT P\n2026-04-06 23:03:48 512 1 Response: 200 Data protection level set to “private”\n2026-04-06 23:03:48 512 1 Status: Logged in\n2026-04-06 23:03:48 512 1 Status: Retrieving directory listing…\n2026-04-06 23:03:48 512 1 Command: PWD\n2026-04-06 23:03:49 512 1 Response: 257 “/” is your current location\n2026-04-06 23:03:49 512 1 Command: TYPE I\n2026-04-06 23:03:49 512 1 Response: 200 TYPE is now 8-bit binary\n2026-04-06 23:03:49 512 1 Command: PASV\n2026-04-06 23:03:49 512 1 Response: 227 Entering Passive Mode (185,27,134,11,187,253)\n2026-04-06 23:03:49 512 1 Command: MLSD\n2026-04-06 23:03:50 512 1 Response: 150 Accepted data connection\n2026-04-06 23:03:51 512 1 Response: 226 11 matches total\n2026-04-06 23:03:51 512 1 Status: Directory listing of “/” successful\n2026-04-06 23:03:53 512 1 Status: Disconnected from server",
  "title": "FTP connection error"
}