Improve company productivity with a Business Account.Sign Up

x
?
Solved

How to verify if SFTP is enabled in a UNIX box .

Posted on 2012-03-09
10
Medium Priority
?
16,622 Views
Last Modified: 2012-06-22
Hi,

I am trying to establish a connection via SFTP from a UNIX to a ip and I get the below error . The ip is valid and the firewall is also opened up from the ip . Is there a way to identify if there is an issue in the source UNIX box .

java.net.SocketException: Connection timed out:could be due to invalid address
com.jcraft.jsch.JSchException: java.net.SocketException: Connection timed out:co
uld be due to invalid address
0
Comment
Question by:FranklinRaj22
  • 3
  • 3
  • 2
  • +2
10 Comments
 
LVL 3

Expert Comment

by:StuWhitby
ID: 37703504
ps -ef | grep ftp should tell you if it's running.  I'd expect to see sftpd or ftpd or similar.

You should also be able to telnet to the port.  Also, since it's complaining about the address rather than the port (though it does show as a socket exception), check that the address itself is reachable via ping or traceroute.  

It's unlikely that the issue is in the source box.  Check basic networking though by trying external websites (or websites on the same domain as you're trying to ftp to).
0
 
LVL 48

Accepted Solution

by:
Tintin earned 1000 total points
ID: 37703630
StuWhitby, sftp doesn't run as a daemon, it is a sub-system of ssh.

Try connecting on the command line rather than through your Java app, eg:

sftp user@ip
0
 
LVL 40

Expert Comment

by:omarfarid
ID: 37704065
Can you login to the unix server? if yes then:

the server ip is ok, and if you use ssh then you should not have a problem using sftp since it runs on the same port of ssh.

If you are able to login to the unix server by some other means, then try this command from command prompt on the unix box

sftp 0

if you can not reach the unix box then it could be a network issue. It could be routing. check routing on your system and on the unix box.
0
Building an Effective Phishing Protection Program

Join Director of Product Management Todd OBoyle on April 26th as he covers the key elements of a phishing protection program. Whether you’re an old hat at phishing education or considering starting a program -- we'll discuss critical components that should be in any program.

 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 37704329
Just checking whether sftp is 'enabled' is just a matter of typing 'sftp' on from a shell prompt. What kind of UNIX do you have btw? Are you able to connect to the ip address from your UNIX box using 'telnet' for example? Try 'telnet <ip address>' and 'ping <ip address>' to see if your destination is reachable.
0
 
LVL 5

Assisted Solution

by:hossamshaaban
hossamshaaban earned 1000 total points
ID: 37704761
svcs -a|grep sshd
0
 
LVL 48

Expert Comment

by:Tintin
ID: 37705512
hossamshaaban, no mention of Solaris was made anywhere in this thread.

Additionally, having sshd running, doesn't mean the sftp subsystem is enabled.

Also, having sshd running on your local server doesn't have any bearing on whether you can connect to a remote server.
0
 
LVL 5

Expert Comment

by:hossamshaaban
ID: 37705744
sftp is inserted module in SSH, so when SSH is enabled SFTP should be enabled also by default.
0
 
LVL 48

Expert Comment

by:Tintin
ID: 37705913
SFTP is only enabled if it is defined in /etc/ssh/sshd_config, eg:

Subsystem sftp /usr/lib/openssh/sftp-server
0
 
LVL 5

Expert Comment

by:hossamshaaban
ID: 37706418
yes, that  mean and i think my reply show that and this line is exist by default.
0
 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 37707546
@FranklinRaj22 - Any progress from your side worth mentioning?
0

Featured Post

The IT Degree for Career Advancement

Earn your B.S. in Network Operations and Security and become a network and IT security expert. This WGU degree program curriculum was designed with tech-savvy, self-motivated students in mind – allowing you to use your technical expertise, to address real-world business problems.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

How to fix a SonicWall Gateway Anti-Virus firewall blocking automatic updates to apps like Windows, Adobe, Symantec, etc.
Last month Marc Laliberte, WatchGuard’s Senior Threat Analyst, contributed reviewed the three major email authentication anti-phishing technology standards: SPF, DKIM, and DMARC. Learn more in part 2 of the series originally posted in Cyber Defense …
In a previous video, we went over how to export a DynamoDB table into Amazon S3.  In this video, we show how to load the export from S3 into a DynamoDB table.
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

589 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question