FTP issue

[bchinnat]

Hi,

we are facing issue on linux server for FTP.

It's taking much time to transfer any files to it. Please advice me what are all the parameter needs to be checked from server end.

Transfering from different subnet. only for this particular server, we are facing issue.
OS: OEL 5U3
Let me know any other info needed.

Thanks In Advance...

[Wilfred Chau_1]

Is DNS configured on the FTP server?
Has port 20/21 opened (non-passive ftp)?

[bchinnat]

Thanks for your reply...

No DNS configured...

Port 20/21 --- 21 I am able to connect.

[bchinnat]

We are using this ftp through vsftp.. so any kind of settings we need to do in /etc/vsftpd/vsftp.conf?

[Wilfred Chau_1]

did the slowness happened during ftp sign in or overall transfer speed?

[Steven Schweda]

Define "much time".

> [...] during ftp sign in or overall
> transfer speed?

Yes. Exactly what is slow? (Bad DNS
configuration can cause a delay when logging
in. Network problems can cause slow file
transfers.)

Is SFTP slow, too?

[Modris Bremze]

Maybe the bandwidth is inadequate or the disks are too slow or there is restrictive QoS/traffic shaping policy in play?

Normally SFTP should be slower than regular FTP between the same boxes because of encryption/decryption overhead.

[bchinnat]

Hi,

While transfering data from other server to this server( incoming traffic is slow), out-going traffice is normal only..

[Rockstar]

It would be best to take a network trace from any server to this server during transfer of the files and compare it with a good trace and check if there is any network latency.

Also, check for transfer of files within the same subnet to this server and check how is the speed while doing so.

[bchinnat]

With in the same subnet it is fine.. Only issue is to other subnet..

[Modris Bremze]

High[er] latency and/or low[er] bandwidth segments between those two subnets? Any firewalls, traffic limits?