500 Invalid PORT Command - ftp

We have had a windows service running without any issues for some time but is now throwing 500, invalid port command errors when attempting to make an FTP connection.
Using Core FTP lite client from the same server I can connect to the FTP server in Active and Passive modes without any problems. The firewall rules have not changed and the application code has not changed at all.
Any ideas why only when attempting to connect from the windows app the Invalid Port Command error is thrown would be much appreciated.
Thank you,

I tried the second solution on this post and it solved my problem. I also had to upgrade to IIS 7.5 FTP and allow the passive ports on both my WIndows 2008 Server Firewall and my external Firewall

Related

Windows Server 2012 can be remote by mstsc but failed to ping

I setup a new server with windows server 2012 system to do a server migration. I can remote the server via mstsc. But failed to ping the server. The server can ping outside successfully. My computer and server are not in the same lan.
I started the echo recall ipv4-in service. But it didn't work.
I have no idea about how to enable the ping on my sever.
I would appreciate it if anyone can give some suggestion about how to make me ping the server successfully.
Thank you very much in advance.
If you are facing any issue with remote Desktop(MSTSC), first of all, you have to ensure that MSTSC is enabled in your client machine as well as server
If MSTSC is enabled in both then check in the server there is a policy on sever who can access via remote Desktop(This policy is about RDP version which version of MSTSc can access the server remotely select the lower version which is having in your client.
For getting ping first you have to ensure that both (Client machine & Server machine Should be in the same network it applicable when you are accessing the server locally )
Also once you check the firewall setting in your client machine if the firewall is enabled, then if possible then disable the firewall of the client machine if not possible then allow the ICMP Protocol in the firewall rule.
Once you have done all these steps your problem will be solved.

Filezilla FTP Server Fails to Retrieve Directory Listing

I'm running Filezilla Server 0.9.45 beta to manage my server remotely.
After setting it up, I tested connecting to it using the IP 127.0.0.1, and it worked successfully. However, to connect to the server remotely, I port forwarded to port 21, and tried to connect using my computer's IP.
Status: Connecting to [My IP]:21...
Status: Connection established, waiting for welcome message...
Response: 220 Powered By FileZilla Server version 0.9.45 beta
Command: USER hussain khalil
Response: 331 Password required for user
Command: PASS *********
Response: 230 Logged on
Status: Connected
Status: Retrieving directory listing...
Command: CWD /
Response: 250 CWD successful. "/" is current directory.
Command: PWD
Response: 257 "/" is current directory.
Command: TYPE I
Response: 200 Type set to I
Command: PORT 192,168,0,13,205,63
Response: 200 Port command successful
Command: MLSD
Response: 150 Opening data channel for directory listing of "/"
Response: 425 Can't open data connection for transfer of "/"
Error: Failed to retrieve directory listing
This continues to work locally, but not when connecting remotely... How can I fix this?
I just changed the encryption from "Use explicit FTP over TLS if available" to "Only use plain FTP" (insecure) at site manager and it works!
File > Site Manager > Select your site > Transfer Settings > Active
Works for me.
Most of the answers here involves configuring, actually just by adding sftp:// on your host (see below image) you can instantly fixed that kind of problem, works for me.
And also take note that if you follow Vaggelis guide you are lowering your security, sftp is better than using plain ftp.
I just changed the encryption from "Use explicit FTP over TLS if available" to "Only use plain FTP" (insecure) at site manager and it works!
When you send the port command to your server, you are asking the server to connect to you (on the remote network). If the remote network also has a NAT router, and you have not port-forwarded the port you are sending with your PORT command, the server will not be able reach you.
The most common solution would be to send the PASV command to the server instead of the PORT command. The PASV command will ask the server to create a listening socket and accept a connection from the remote machine to establish the data connection.
For the PASV command to work, you will also need to port-forward a range of ports for the passive data connections. The passive connection ports (which need to be forwarded) should be listed in the FileZilla documentation.
Ok this helped a lot, I couldn't find a fix.
Simply, I already port forwarded the FTP port to my server. (The default is 14147, I'll use this as example)
Go to Edit > General settings, Listening port should be the one your using, in this case 14147.
Then go to Passive Mode Settings, I checked "Use Custom Port", and entered in the Range 50000 - 50100.
Then on your router, port forward 50000 - 50100 to the server IP locally.
IPv4 specific settings I left at default, reconnected my client, and bam now the file listing appears.
Ensure your servers firewall has an inbound rule set to accept 14147, and 50000-50100.
Basically what Evan stated. I can't attest to the security of opening these ports, but this is what finally got my Filezilla client and server to communicate and view files. Hope this helps someone.
My experience is that the new version of Filezilla has this problem, but not the old versions. I was using Filezilla and everything was OK. After I upgraded to version 3.10, I faced this problem and I couldn't solve it. I uninstalled version 3.10 and reinstalled version 3.8 and the problem was gone! Now I am using version 3.8 and everything is OK. I prefer to face no problems even if I have to use old versions. ;)
Try installing the old version and do not upgrade, however odd that may sound.
I solved this by going into Site Manager -> selected the connection that Failed to retrieve directory listing -> Switched to tab "Transfer Settings" and set "Transfer Mode" to "Active" instead of "Default". Also check if you are connected via VPN or anything similar, this can also interfere.
Run Windows Defender Firewall with Advanced Security
Start > Run : wf.msc
I had the same problem-what worked for me -in Windows OS-is adding FileZilla as a firewall exception-under allow a program through firewall features
I've had the same problem, This was due to the firewall. I use windows server,
Can you allow the connection permission for program, intead of port 21,22 permission.
Windows Firewall with Advanced Security->
Inbound Rules->
Add Rule->
Program->
"Select Filezilla path with Browse button"->
Allow the Connection
I had Filezilla 3.6, and had the same issue as OP. I have upgraded to 3.10.3 thinking it would fix it. Nope, still the same.
Then I did a bit digging around the options, and what worked for me is:
Edit -> Settings -> FTP -> Passive Mode and switched from "Fall back to active mode" to "Use the server's external IP address instead"
I experienced the same problem with FZ-client, while my notebook connected via WLAN and DSL/Router. In the Site Manager connection settings I was applied Host:ftp.domain-name, Encryption:Only use plain FTP (insecure) and User:username#domain-name. Then the FTP-client succesfully connected to my website server.
More FTP connection information could be found in the CPanel of the webserver. Hope this helps.
It worked for me:
General -> Encryption -> Only use plain FTP
Transfer settings -> Transfer Mode -> Active
Consider that it is very insecure, and must be used only for testing.
After about 2 hours experience;
Open > Windows Defender Firewall with Advanced Security
Select > Inbound Rules
Click > New Rule...
Choose > Custom
Choose > This program path:
Click > Browse
Find > filezilla-server.exe (possibly C:\Program Files\FileZilla Server)
Click > Open
Click > Next
Click > Next
Click > Next (Allow the connection is already selected)
Click > Next (if you do not need change)
Fill > Name
Click > Finish
I also had the problem after upgrading to 3.10. I had versoin 3.6.02 hanging around and installed that. Problem solved.
I had that problem with my server hosted in the cloud. I only need the server a couple of times a year and so when I boot up my server the IP address changes. The new IP address then has to be updated on FTP Server passive mode settings!
The latest version of Filezilla works just fine!
If you're using VestaCP, you might want to allow ports 12000-12100 TCP on your Linux Firewall.
You can do this in VestaCP settings.
Check if the ip address on the router is the same with the one on the ftp server. If not make sure it is the same. This should works perfectly.
In my case, restarting my router which I used to connect to the internet worked. I think too much of connections were going from the same IP Address and when I restarted my router, possibly a new IP was assigned and now everything works fine, and passive mode gives good speed in directory listing.
My issue was also the firewall. I'm using a Linux server with WHM/cPanel. Adding my IP to the quick allow solved my issue. I hadn't updated Filezilla and I don't think there were any changes to the server that should have caused it. However, I did move and my IP changed so maybe that was the problem. Good luck to everyone else with this insanely annoying issue.
The issue of mine was the same but the solution was a little different.
I used the AWS EC2 server to host the WHM service. And found that "the passive ports are enabled, but not these Ports are not found in my EC2 Security Group".
[root#94367392 ~]cPs# egrep -i passiveport /etc/pure-ftpd.conf
Output:
PassivePortRange 49152 65534
Now I moved ahead and opened the ports from 49152 to 65534 in the Security group of EC2 and the Filezilla problem related to "Failed to retrieve directory listing" was solved and it worked like a charm.
This cPanel doc is helpful.
I've seen solutions that involve granting FileZilla full access via windows firewall. This is an alternative to that, if you know the IP of the connecting system and it's static, simply grant it full access to all ports via windows firewall.
Windows Firewall, Inbound Rules > Create a Rule > All Local Ports > Scope > This IP Address (the IP of the connecting system).
To me this is much safer than granting full access to FileZilla to all incoming ip addresses.
Once you've completed your transfer, you can then disable the rule.
I tried all the solution, i used CyberDuck and it works..
Now in FileZilla, create a new Account
1. Host is the FTP Address - e.g. ftp.somewhere.com
2. Protocol is "SFTP-SSH File Transfer Protocol"
3. User ID is your Bluehost User Id
4. Password is your Bluehost Password
5. Click "Connect" to establish a connection with Directory Listing!
This resolve the issue with 3.10 for me. And I'm glad to have the Secure Access for all of my future file transfers. It should prevent security issues in the future.

FTP server on VPS

I am trying to connect to FileZilla ftp server on my VPS. I have installed it. Added a user. Added exception to Windows Firewall for FileZillaServer.exe; Configured FileZilla to use Passive mode and entered my IP of VPS server. Then I have started the server on VPS.
But I still can not connect to FileZilla from outside. It sais:
Error: Connection timed out
Error: Could not connect to server
P.S. if I`m connecting to server locally, ir works.
Any ideas what is going on?
Thanks a lot.
Well, I will answer it myself :)
I could not start Filezilla server for some reason, but I was able to start IIS FTP server.
All you need to do is to go to IIS Manager and add FTP site. Add user and that`s it.

Windows 7 remote desktop connection conflict with FTP Serve?

Today I was connecting to another computer using Windows 7 remote desktop connection and I just setted up a IIS FTP server on this computer. Then I changed the inbound rule of windows 7 firewall to allow FTP service. After finishing that, I lost connection with the computer and could not connect to it using Remote Desktop Connection. Why will this happen?
I know another solution for this problem on OnlineVNC basis. OnlineVNC it is a remote desktop with
embeded FTP server inside which does not conflict each other. Very easy to set up and fast. Maybe it will be help full for you.
http://www.onlinevnc.com/support/configuring-ftp-based-file-transfer.html

Apache can't connect to http://localhost/. Port is changed to 81

I've just installed apache2.2 and installed it, but to get it running I had to change it listening port to 81. But the thing is now that I cant connect to it through localhost. The only thing I get is a login window and when I type in the authentication information that I think is my windows login. I get:
error '8002801c'
Error accessing the OLE registry.
/iisHelp/common/500-100.asp, line 17
The computer is a winxp and I've opened the ports out and no firewall is blocking apache.
Seems like the machine has another webserver running, probably IIS.
You can uninstall that through the configuration screen.
Try http://localhost:81/ to get the apache install.

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