SSHD works fine but how do I enable the SFTP Subsystem in Redhat 5.2 Enterprise Linux? It seems to have a older version of SSHD that doesn't support some of the usual directives like Match or ChrootDirectory . So, does anyone have an example of how to do this on Redhat 5.2 (or CentOS 5.2?) ??

The file /usr/libexec/openssh/sftp-server is permissions 755.

I tried both of these in my /etc/ssh/sshd_config file:

#Subsystem sftp /usr/libexec/openssh/sftp-server
Subsystem sftp internal-sftp  

But neither of them work. My psftp says:

psftp> open
login as: root
root@'s password:
bash: line 2: exec: sftp-server: not found
Fatal: unable to initialise SFTP: could not connect

Your SSH is most likely version 4.2, all that SFTP stuff is in version 4.9 from what I can tell. You will need to compile a newer version. The 5.2 RHEL server here is showing 4.2 for the OpenSSH version.

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  • Do you think if I enable the "redhat network" repository, that the redhat network rpm repository would have a 5.x version of sshd to upgrade to? – djangofan Jan 26 '12 at 20:03
  • If you mean the default RHEL repos, then I would say no. From some of the build instructions I have seen, I looked like there was new PAM libs required and such. Also my 4.2 version came from the default RHEL repos. – Tim Jan 26 '12 at 21:12
  • Here is the build instructions I saw: binblog.info/2009/02/27/packaging-openssh-on-centos – Tim Jan 26 '12 at 21:14

You need to run OpenSSL version 5.*+. The version in the repository for CentOS 5.2 does not support chrootdirectory, etc. I had to compile it from source, but there may be an RPM out there somewhere.

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  • Thanks, thats a great thought "to try a CentOS version". Maybe I might resort to doing that. – djangofan Jan 26 '12 at 20:04
  • You will probably need to look beyond the RHEL or CentOS repositories. They will both have the 4.2 version. – Craig Jan 26 '12 at 20:07

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