ftp slow w/ proftpd# Samba fast

Phil Meyer pmeyer at themeyerfarm.com
Wed Jul 25 23:35:51 UTC 2007


Excalibur Xcalibur wrote:
> Hi,
>      I'm using proftpd as server on my fedora box and it's damn slow. 
> Users take forever to download/upload things on the server. But when I 
> share my folder as a Samba share, it's almost instantaneous 
> downloads/uploads for users. Any clues to make my FTP blazing fast? 
> Could SELINUX be one of the problems?
>
>
>
> -- 
> Excalibur 

proftp can be (is by default?) configured to verify a valid IP before 
allowing a log in.

If your reverse DNS is slow, then ftp logins and ssh connections can 
take up to two minutes or so.

Microsoft based protocols don't do much IP based security validation, 
based upon the OLD SMB protocols (ripped off from DEC and ISO standards).

Check your reverse DNS response times -- I bet they are whack.

You can use the host utility to test RDNS queries easily, or dig.

$ host 74.220.202.11
11.202.220.74.in-addr.arpa domain name pointer host11.hostmonster.com.

$ dig esourcehome.com

; <<>> DiG 9.4.1 <<>> esourcehome.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9058
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;esourcehome.com.               IN      A

;; ANSWER SECTION:
esourcehome.com.        4439    IN      A       74.220.202.11

;; Query time: 3 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Wed Jul 25 17:32:44 2007
;; MSG SIZE  rcvd: 49

If these queries take more than a second or so, your are having DNS issues.

Good Luck!




More information about the fedora-list mailing list