Solaris sftp throttling?

Login or Register to Ask a Question and Join Our Community

Solaris sftp throttling?

Tags

sftp server, solaris, solaris 10

Login to Discuss or Reply to this Discussion in Our Community

Operating Systems Solaris Solaris sftp throttling?

09-27-2011

Registered User

1, 0

Join Date: Sep 2011

Last Activity: 29 September 2011, 4:41 PM EDT

Posts: 1

Thanks Given: 0

Thanked 0 Times in 0 Posts

Solaris sftp throttling?

I get poor performance when sftp'ing a file to a server on a SunOS 5.10 system, with Sun_SSH_1.1.4. The same client performs much better to a linux system at the same site.

From a TCPdump, it appears that the Solaris server is throttling the thruput. After proceeding normally for a while, the server sends a duplicate ack, then a return data packet. This data packet seems to cause my client to stop sending.

After the server receives the ack for that reverse data packet, the server acks all outstanding packets, and sends another data packet. On receipt of that second data packet, my client resumes sending.

This process is repeated regularly, resulting in poor performance.

Any clues on what is going on, or how to speed this up?

AGermain

View Public Profile for AGermain

Find all posts by AGermain

Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Red Hat

Throttling a Yum Mirror sync

I'm building a yum mirror on Oracle Enterprise Linux, which is a fork of RHEL. I'm using uln-yum-mirror to create and maintain the mirror. In the Yum client, more specifically in /etc/yum.conf there is a throttle setting. Is there a like feature in /etc/sysconfig/uln-yum-mirror? If so, what is...

2. Solaris

Enabling SFTP log on Solaris

Hi Guys, Hope you can shed the light to this issue. I have enabled SFTP logging on Linux this way and it works: But trying this on Solaris it wont work, the ssh goes to maintenance in when checking with svcs. The logs said a syntax error it doesn't recognize "-l"

3. Solaris

SCP/SFTP- Stalled- solaris

hello all, I am getting the following error with the SCP/Sftp is getting stalled on solaris 10 . pxxx_xxx_SOLARIS64_1of7.zip 0% 2068KB 0.0KB/s - stalled -Write failed: Broken pipe pxxx_xxx_SOLARIS64_1of7.zip ...

4. UNIX for Dummies Questions & Answers

automate sftp in sun solaris.

Hi, I'm using Sun Solaris OS. I have configured sftp and can exchange files in command prompt. Now when I try to automate it in ksh script, facing issue as I want to capture the status if the transfer was successful or not. So tried sftp -b and sftp -B option but its not working. The...

5. Solaris

SFTP from Solaris to Windows

Hello Guys, I was looking for a method for passwordless SFTP from Solaris to Windows server. I googled a lot, but could not find anything which would suit my purpose. All I found on google was the error messages that people got, but not how to do it. Please help. I am in urgent need of it.

6. UNIX for Advanced & Expert Users

Throttling Process Resource Consumption

Is there a way of throttling a process resources, something akin to limits but for processes not users? ie I want processX to be restricted in the amount of memory it can consume. For process cpu I guess I can simply nice the process, but total memory consumption is my primary concern.

7. Shell Programming and Scripting

Throttling

Hey guys, Need your help/suggestions I have a log file which has 5K lines in it, I need to send only 200 lines to an application at a time and delete the 200 lines from log fileafter its been fed to application. The script should keep on running until all 5K has been...

8. Solaris

Implementing sftp within Solaris 10

Greetings! Does anyone know of any HowTos or cookbooks that will give a good overview of implementing sftp within Solaris 10? Specifically, I need to know (1) Installation procedure (2) which logs monitor sftp and where the logs are located at (3) how to create/install sftp users and...

9. UNIX for Advanced & Expert Users

Help using SFTP i Solaris

Folks; How can i give a user the privilege to upload files into Solaris UNIX box using sftp?

Login or Register to Ask a Question

LEARN ABOUT POSIX

sftp-server

sftp-server(1M) 					  System Administration Commands					   sftp-server(1M)

NAME

       sftp-server - SFTP server subsystem

SYNOPSIS

       /usr/lib/ssh/sftp-server

DESCRIPTION

       sftp-server implements the server side of the SSH File Transfer Protocol as defined in the IETF draft-ietf-secsh-filexfer.

       sftp-server is a subsystem for sshd(1M) and must not be run directly. There are no options or config settings.

       To enable the sftp-server subsystem for sshd add the following to /etc/ssh/sshd_config:

       Subsystem   sftp     /usr/lib/ssh/sftp-server

       See sshd_config(4) for a description of the format and contents of that file.

       There is no relationship between the protocol used by sftp-server and the FTP protocol (RFC 959) provided by in.ftpd.

EXIT STATUS

       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred.

FILES

       /usr/lib/sftp-server

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsshdu 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sftp(1), ssh(1), ssh-add(1), ssh-keygen(1), sshd(1M), sshd_config(4), attributes(5)

       To  view  license  terms,  attribution,	and  copyright	for OpenSSH, the default path is /var/sadm/pkg/SUNWsshdr/install/copyright. If the
       Solaris operating environment has been installed anywhere other than the default, modify the given path to access the file at the installed
       location.

AUTHOR

       Markus Friedl

SunOS 5.10							    30 Jul 2003 						   sftp-server(1M)