Connection hangs at the "LIST" command

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abacrotto
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Joined: 2019-09-18 14:47
First name: Alejandro Ariel
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Connection hangs at the "LIST" command

#1 Post by abacrotto » 2019-09-18 15:11

Hi all! I am having a similar Issue as this right now only in one computer. I try to do a LIST for finding out the FTP server's directory structure and it fails.

This is an extract of the FileZilla client log:

2019-09-18 11:13:35 3640 1 Estado: Conexión establecida, esperando el mensaje de bienvenida...
2019-09-18 11:13:35 3640 1 Respuesta: 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
2019-09-18 11:13:35 3640 1 Respuesta: 220-You are user number 43 of 450 allowed.
2019-09-18 11:13:35 3640 1 Respuesta: 220-Local time is now 11:12. Server port: 21.
2019-09-18 11:13:35 3640 1 Respuesta: 220-This is a private system - No anonymous login
2019-09-18 11:13:35 3640 1 Respuesta: 220-IPv6 connections are also welcome on this server.
2019-09-18 11:13:35 3640 1 Respuesta: 220 You will be disconnected after 60 seconds of inactivity.
2019-09-18 11:13:35 3640 1 Estado: Plain FTP is insecure. Please switch to FTP over TLS.
2019-09-18 11:13:35 3640 1 Comando: USER crodriguezcau
2019-09-18 11:13:35 3640 1 Respuesta: 331 User c?????????u OK. Password required
2019-09-18 11:13:35 3640 1 Comando: PASS ********
2019-09-18 11:13:35 3640 1 Respuesta: 230 OK. Current restricted directory is /
2019-09-18 11:13:35 3640 1 Comando: OPTS UTF8 ON
2019-09-18 11:13:35 3640 1 Respuesta: 200 OK, UTF-8 enabled
2019-09-18 11:13:35 3640 1 Estado: Registrado en
2019-09-18 11:13:35 3640 1 Estado: Recuperando el listado del directorio...
2019-09-18 11:13:35 3640 1 Comando: PWD
2019-09-18 11:13:35 3640 1 Respuesta: 257 "/" is your current location
2019-09-18 11:13:35 3640 1 Comando: TYPE I
2019-09-18 11:13:35 3640 1 Respuesta: 200 TYPE is now 8-bit binary
2019-09-18 11:13:35 3640 1 Comando: PASV
2019-09-18 11:13:35 3640 1 Respuesta: 227 Entering Passive Mode ($$$,###,///,@@@,113,182)
2019-09-18 11:13:35 3640 1 Comando: MLSD
2019-09-18 11:13:35 3640 1 Respuesta: 150 Accepted data connection
2019-09-18 11:13:35 3640 1 Respuesta: 226-Options: -a -l
2019-09-18 11:13:35 3640 1 Respuesta: 226 11 matches total

And that is all. Nothing else if logged.
If I use the same FileZilla Client in my personal computer, it works perfectly well.
So I think the problema has to be in the TCP stack in the computer that does not work well.
Something odd about that box is that its network card appears to be virtualized

Configuración IP de Windows

Nombre de host. . . . . . . . . : *********
Sufijo DNS principal . . . . . :
Tipo de nodo. . . . . . . . . . : híbrido
Enrutamiento IP habilitado. . . : no
Proxy WINS habilitado . . . . . : no

Adaptador de Ethernet Ethernet:

Sufijo DNS específico para la conexión. . :
Descripción . . . . . . . . . . . . . . . : Microsoft Hyper-V Network Adapter
Dirección física. . . . . . . . . . . . . : 00-15-5D-0A-32-00
DHCP habilitado . . . . . . . . . . . . . : sí
Configuración automática habilitada . . . : sí
Vínculo: dirección IPv6 local. . . : fe80::442:1e3e:e748:cbcb%2(Preferido)
Dirección IPv4. . . . . . . . . . . . . . : 172.16.152.13(Preferido)
Máscara de subred . . . . . . . . . . . . : 255.255.248.0
Concesión obtenida. . . . . . . . . . . . : miércoles, 18 de septiembre de 2019 11:06:05
La concesión expira . . . . . . . . . . . : miércoles, 25 de septiembre de 2019 11:06:04
Puerta de enlace predeterminada . . . . . : 172.16.152.1
Servidor DHCP . . . . . . . . . . . . . . : 172.16.152.1
IAID DHCPv6 . . . . . . . . . . . . . . . : 33559901
DUID de cliente DHCPv6. . . . . . . . . . : 00-01-00-01-23-77-2C-E5-00-15-5D-0A-32-00
Servidores DNS. . . . . . . . . . . . . . : 10.82.200.1
NetBIOS sobre TCP/IP. . . . . . . . . . . : habilitado


Do you have any hints as to what could be happening?


Thank you in advance.
Ariel.

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botg
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Posts: 35507
Joined: 2004-02-23 20:49
First name: Tim
Last name: Kosse

Re: Connection hangs at the "LIST" command

#2 Post by botg » 2019-09-18 16:13

Split into a new topic. Please do not perform thread necromancy.

The log does not show an error.

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boco
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Posts: 26910
Joined: 2006-05-01 03:28
Location: Germany

Re: Connection hangs at the "LIST" command

#3 Post by boco » 2019-09-18 20:26

Looks like it is running in a Hyper-V Virtual Machine, or in Microsoft's new Sandbox feature (essentially the same).

The log shows 11 matches. If FileZilla does not display anything in lists, check that you didn't enable directory listing filters by accident. Check in menu View - Directory listing filters... and make sure all checkmarks are removed.
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