Constance, I have used both CentOS 6 and RHEL 6 as the OS platform to install CAS on. I'm not sure what your exact network issue was over, but there are a few things in a default RHEL install that can cause you problems if you don't know what to look for.
1. Iptables/ip6tables - If you know how to configure them, make sure that you allow the right ports, otherwise this is going to cause you some issues with connecting back to your CAS after install. If you aren't sure how to configure iptables/ip6tables, disable and stop the services (chkconfig iptables off; chkconfig ip6tables off; service iptables stop ; service ip6tables stop). This will save you a great deal of headaches when you start your tomcat instance up and you are trying to figure out why it won't connect. 2. SELinux - Again, if you know how to configure and troubleshoot SELinux, make sure you set it up properly after you have installed it. If you have requirements that you MUST run SELinux, I highly suggest installing setroubleshootd (yum install setroubleshoot). This will create an audit log that allows you to see the exact SELinux error and how to resolve it. If you are unsure how to configure SELinux, make sure you set it to permissive mode. As a best practice, I do not recommend disabling SELinux, just my 2 cents on that issue though. 3. NetworkManager service - I despise this service. I recently ran into an issue where the NetworkManager service was disregarding my network-scripts and acquiring DHCP addresses instead of using the ones I had assigned statically. IMO, it's best to disable this service (chkconfig NetworkManager off) and configure your network using the network-scripts (ifcfg-eth# scripts located in /etc/sysconfig/network-scripts). Please note, YMMV with regards to your ifcfg-* script names. Depending on the hardware vendor you may get different interface names. I've seen the Dell 4 port 1GB daughter card show up as either interface em1 through em4 or as p1p1 through p1p4. Also, make sure you stop the service after disabling it, otherwise if you start making changes to your network scripts, the network manager will try to start using them instantly. This can cause you some issues if you aren't ready for your changes to go into effect. Ben Branch UNIX/Linux Administrator University of Central Oklahoma ITIL Foundation v3, Network+, RHCSA 100 N. University Drive, Box 122 Edmond, OK 73034 D: 405.974.2649 | M: 405.550.6804 | bbranch@uco.<mailto:bbranch@uco.>edu | www.uco.edu<http://www.uco.edu/> "I am wiser than this man, for neither of us appears to know anything great and good; but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do. In this trifling particular, then, I appear to be wiser than he, because I do not fancy I know what I do not know." - Socrates From: Constance Morris [mailto:[email protected]] Sent: Thursday, April 25, 2013 1:01 PM To: [email protected] Subject: [cas-user] [cas-users]: First Install of CAS - recommendations? Hi everyone, I've created a virtual machine in vmware and have installed red hat enterprise linux 5.9, but ran into some problems with the network - which I may have straightened out now. However, due to those network problems (which may be resolved) - it has been suggested to me by my co-workers that I now do a fresh install, but that I use something other than red hat....like an Ubuntu server (which I have experience with also). For those already using CAS - what do you recommend.....Ubuntu server or something else? I have not attempted to install the CAS server download I got from the jasig.org/cas website yet but any suggestions or words of advice to get me going would be greatly appreciated. Thank you for your time! Constance -- You are currently subscribed to [email protected]<mailto:[email protected]> as: [email protected]<mailto:[email protected]> To unsubscribe, change settings or access archives, see http://www.ja-sig.org/wiki/display/JSG/cas-user -- You are currently subscribed to [email protected] as: [email protected] To unsubscribe, change settings or access archives, see http://www.ja-sig.org/wiki/display/JSG/cas-user
