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FTP issue

bchinnat
Frequent Advisor

FTP issue

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...

10 REPLIES
Wilfred Chau_1
Respected Contributor

Re: FTP issue

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

Re: FTP issue

Thanks for your reply...

No DNS configured...

Port 20/21 --- 21 I am able to connect.
bchinnat
Frequent Advisor

Re: FTP issue

We are using this ftp through vsftp.. so any kind of settings we need to do in /etc/vsftpd/vsftp.conf?
Wilfred Chau_1
Respected Contributor

Re: FTP issue

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

Steven Schweda
Honored Contributor

Re: FTP issue

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
Esteemed Contributor

Re: FTP issue

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
Frequent Advisor

Re: FTP issue

Hi,

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

Re: FTP issue

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
Frequent Advisor

Re: FTP issue

With in the same subnet it is fine.. Only issue is to other subnet..
Modris Bremze
Esteemed Contributor

Re: FTP issue

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