Issued:
2015-07-22
Updated:
2015-07-22

RHBA-2015:1332 - ypbind bug fix and enhancement update

Synopsis

ypbind bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated ypbind packages that fix several bugs and add one enhancement are now available for Red Hat Enterprise Linux 6.

Description

The ypbind packages provide the ypbind daemon to bind NIS clients to an NIS domain. The ypbind daemon must be running on any machines that run NIS client programs.

This update fixes the following bugs:

  • Previously, the localhost was not treated specifically in the domains list of the ypbind program. Consequently, when the network connection was not established the ypbind did not bind to the ypserv utility on the localhost. With this update, a check for the localhost has been added, and now ypbind works even if the network connection is off. (BZ#829487)

  • Prior to this update, the SIGPIPE signal was not in the proper signal set. Consequently, when a loss of network connectivity occurred, the ypbind utility terminated unexpectedly. Adding SIGPIPE to the proper signal set fixes this bug, and ypbind no longer crashes. (BZ#842228)

  • Previously, the ypbind program's init script did not check for the presence of the ypbind line in the /etc/rpc file. As a consequence, if the ypbind line was not present, ypbind failed to start. This update adds a patch to check for the presence of the ypbind line in /etc/rpc. As a result, ypbind provides a warning message in the log files when its line is missing in /etc/rpc. (BZ#888778)

In addition, this update adds the following enhancement:

  • This update adds a configurable option for setting the time interval which is used by the ypbind program to retry rebinding. Previously, ypbind checked for the fastest NIS server every 15 minutes. This in some cases led to intermittent failures when the default timeout interval on a server firewall was set to 10 minutes. The added configurable option allows to set a specific time interval after which ypbind performs a check for the fastest NIS server, and thus avoids the intermittent failures during the rebinding process. (BZ#918276)

Users of ypbind are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • ypbind-1.20.4-31.el6.s390x.rpm
  • ypbind-1.20.4-31.el6.ppc64.rpm
  • ypbind-1.20.4-31.el6.x86_64.rpm
  • ypbind-debuginfo-1.20.4-31.el6.ppc64.rpm
  • ypbind-1.20.4-31.el6.src.rpm
  • ypbind-debuginfo-1.20.4-31.el6.i686.rpm
  • ypbind-debuginfo-1.20.4-31.el6.s390x.rpm
  • ypbind-debuginfo-1.20.4-31.el6.x86_64.rpm
  • ypbind-1.20.4-31.el6.i686.rpm

Fixes

CVEs

(none)

References

(none)

Additional information