OS Package Error while installing SOA 11.1.1.5.0 on Linux

Question

Hi,
I am trying to install SOA Suite 11.1.1.5.0 on Linux Environment.
While doing the prerequisite checks, I am getting some errors wrt operating system packages and kernel parameters.
The queries I have is:
1) If these packages are not installed, will it have some adverse effect on my installation?
2) Also, how from where can I download these packages and how do I install them?
OS Version is: Oracle Linux 5 Update 7
The log for the prerequisite checks is pasted below:
Root
Checking operating system certification
Expected result: One of enterprise-5.4,enterprise-4,enterprise-5,redhat-5.4,redhat-4,redhat-5,SuSE-10,SuSE-11
Actual Result: enterprise-5.4
Check complete. The overall result of this check is: Passed
Checking recommended operating system packages
Checking for gcc-4.1.0-28.4; found gcc-4.1.2-51.el5-i386.           Passed
Checking for gcc-c++-4.1.0-28.4; found gcc-c++-4.1.2-51.el5-i386.           Passed
Checking for setarch-1.6-1; found setarch-2.0-1.1-i386.   Passed
Checking for sysstat-5.0.5-1; Not found.  Failed <<<<
Checking for libstdc++-4.1.0-28.4; found libstdc++-4.1.2-51.el5-i386.        Passed
Checking for libstdc++-devel-4.1.0-28.4; found libstdc++-devel-4.1.2-51.el5-i386.  Passed
Checking for compat-libstdc++-296-2.96-132.7.2; found compat-libstdc++-296-2.96-138-i386.         Passed
Checking for compat-db-4.1.25-9; Not found.      Failed <<<<
Checking for control-center-2.8.0-12; found control-center-1:2.16.0-16.el5-i386.  Passed
Checking for glibc-common-2.3.4-2.9; found glibc-common-2.5-65-i386.   Passed
Checking for binutils-2.16.91.0.5-23.4; found binutils-2.17.50.0.6-14.el5-i386.      Passed
Checking for make-3.80-202.2; found make-1:3.81-3.el5-i386.    Passed
Check complete. The overall result of this check is: Failed <<<<
Problem: Some recommended packages are missing (see above).
Recommendation: You may actually have installed packages which have obsoleted these, in which case you can successfully continue with the install. If you have not, it is recommended that you do not continue. Refer to the product release notes to find out how to get the missing packages and update the system.
Checking kernel parameters
Checking for VERSION=2.6.18; found VERSION=2.6.18-274.el5xen.           Passed
Checking for hardnofiles=4096; hardnofiles=1024.            Failed <<<<
Checking for softnofiles=4096; softnofiles=1024.  Failed <<<<
Check complete. The overall result of this check is: Failed <<<<
Problem: The kernel parameters do not meet the minimum requirements (see above).
Recommendation: Perform operating system specific instructions to update the kernel parameters.
Checking Recommended glibc version
Expected result: ATLEAST=2.5-12
Actual Result: 2.5-65
Check complete. The overall result of this check is: Passed
Checking physical memory
Expected result: 1024MB
Actual Result: 3336MB
Check complete. The overall result of this check is: Passed
Any help will be appreciated.
Cheers,
Varun

Answer 1

Hi Avi,
Thanks for your reply.
I was able to install the packages, not eactly the same way as u told but I downloaded them from http://public-yum.oracle.com/ and installed them manually. Was also able to change parameters.
And Bingo, there was no pre-requisite failures while installing SOA.
One of the probs that I'm facing now is that when I try to access the WLS Console of SOA after creating domain, I'm able to open it on the local machine using IP and localhost. But it doesn't work the same way when I use hostname. It gives an error saying No Route to the Host. Also I'm not able to access WLS Console from any other machine using IP address of the machine.
Any inputs that can be of any help.
Cheers,
Varun