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MACHINE SPECIFIC NOTES
FOR
HCL Informix-Client SDK 4.10.FC10 PRODUCT RELEASE
HCL Informix ODBC Driver Version 4.10.FC10
On Linux zSeries 64-Bit
DATE: 23 Oct 2017
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OS Information : Built on Red Hat Enterprise Linux ES release 5.3 (Tikanga).
Certified on RHEL 6 and 7, SUSE SLES 11 and 12.
Machine Specific Notes
======================
1. This product was built on Red Hat Enterprise Linux ES release 5.3
(Tikanga) for zSeries mainframe with 64-bit Kernel 2.6.18-274.7.1.el5
and glibc 2.5-34, using the following compilers:
gcc/g++ 4.1.2 20080704 (Red Hat 4.1.2-44)
2. For shared library support, environment variable LD_LIBRARY_PATH
needs to be set to include the $INFORMIXDIR/lib/cli directories
where IBM INFORMIX ODBC shared libraries are installed.
(for C Shell)
setenv LD_LIBRARY_PATH $INFORMIXDIR/lib:$INFORMIXDIR/lib/cli:
$INFORMIXDIR/lib/esql:$LD_LIBRARY_PATH
(for Bourne or Korn Shell)
LD_LIBRARY_PATH=$INFORMIXDIR/lib/cli:$INFORMIXDIR/lib/esql:
$LD_LIBRARY_PATH
export LD_LIBRARY_PATH
3. Thread-safe ODBC libraries are supported on this platform using POSIX
threads. Make sure that you set the THREADLIB environment variable to
"POSIX" before linking your ODBC program using the esql script.
4. Pluggable Authentication Module (PAM)
PAM functionality is supported on Linux zSeries operating systems. The
PAM is dependent on the libpam.so library supplied by the Operating System
vendor.
Use of PAM can be enabled or disabled by the system administrator. By
default, IBM IDS will use the traditional authentication mechanism in
order to avoid widespread changes required by the users.
The PAM service identifies the PAM module. This PAM module typically
resides in /lib/security and its parameters are listed in /etc/pam.d.
The pam.conf file is ignored on Linux, if the /etc/pam.d directory is
present.
5. IPv6 Support
IBM Informix Server supports Internet Protocol Version 6 (128 Bit Internet
Addresses) as well as IPv4 (32 Bit Addresses).
In order for the machine name specified in the SQLHOSTS file to resolve to
the correct IP address, the name services files on the operating system
should be correctly configured. If the machine has IPv6 address configured
and the listener thread is bound to an IPv6 address, then the name
resolution files /etc/nsswitch.conf should be configured to fetch IPv6
addresss. Also use the appropriate /etc/hosts setting if local machine
settings are used.
For compatibility with older IBM Informix client and server products,
assign the same hostname with both an IPv4 address and an IPv6 address.
If the listener needs to be bound to an IPv4 address and the name services
resolve the name in the order of the IPv6 address followed by IPv4 address,
then an explicit IPv4 address needs to be put in nodename field of SQLHOSTS
file. Client applications should also use the same setting.
Check the following web site for the latest Linux system requirements:
http://www-01.ibm.com/support/docview.wss?rs=630&uid=swg27016673
(C) Copyright IBM Corp. 2002, 2017
(C) Copyright HCL Technologies Ltd. 2017. All Rights Reserved.