Centrify

Tips for finding Knowledge Articles

  • - Enter just a few key words related to your question or problem
  • - Add Key words to refine your search as necessary
  • - Do not use punctuation
  • - Search is not case sensitive
  • - Avoid non-descriptive filler words like "how", "the", "what", etc.
  • - If you do not find what you are looking for the first time,reduce the number of key words you enter and try searching again.
  • - Minimum supported Internet Explorer version is IE9
Home  >
article

KB-10066: SSHD Connectivity via RSA on RHEL Servers Showing a Segfault after the Latest Kernel Update

Authentication Service ,  

1 April,18 at 02:44 AM

Problem:
After the Linux kernel update was installed, the customer tried to connect to the server via SSHD with and RSA device. They get an error saying "327 kernel: sshd[3485]: segfault at 70 ip 00007f5796fb0d57 sp 00007fff90c2ce98 error 4 in sshd[7f5796f36000+d2000]"

Resolution:
In the sshd_config file for the stock SSHD (5.3p1) there is a line :

UsePrivilegeSeparation

The RSA ACE/SecurID installation is calling for it to be set to no:

UsePrivilegeSeparation no

The Centrify SSHD install merges configuration directives from the stock SSHD install and then disables it and takes its place. This option crashes the SSH server.
The correct configuration for this version of SSHd (7.4p1) should be:

UsePrivilegeSeparation sandbox

After making this change, the RSA/SecurID works without an issue.

Still have questions? Click here to log a technical support case, or collaborate with your peers in Centrify's Online Community.

Related Articles

 articleKB-20210: Common Questions Regarding Centrify DirectControl and CoreOS article[How To] Enable Symantec VIP MFA for Centrify Server Suite on Linux Part III article[How To] Enable Symantec VIP MFA for Centrify Server Suite on Linux Part I articleKB-7555: Unable to login as root after upgrade to Centrify Suite 2016 (CDC 5.3.0) articleKB-6041: How to show current license type in use by adclient article[How To] Enable Symantec VIP MFA for Centrify Server Suite on Linux Part II articleKB-6073: How to join the Linux/Unix Centrify Server to Active Directory with specific Computer Role? articleKB-6040: How to change the license type in use after adclient successful joined to the AD? articleKB-6038: How to specify the license type to use when joining the server to AD using adjoin?