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<p class="MsoNormal">I have a mixed environment of RHEL 5 and RHEL 6 clients, and three RHEL 7 IPA servers (one master and two duplicates). I'm trying to ensure that if one server goes down, the remain server(s) will still allow logins. With the RHEL 6 clients
this is easy -- the line<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> ipa_server = _srv_, server1.ipa.middlebury.edu<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">in /etc/sssd/sssd.conf does this with the _srv_ entry, and everything is fine.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But with the RHEL 5 clients, this doesn't work. If server 1 goes down, logins fail. Since RHEL 5 is using LDAP, I figured it was probably in the ldap_uri line in the sssd.conf file. I discovered that I could add multiple servers, which
I did:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> ldap_uri = ldap://server1.ipa.middlebury.edu, ldap://server2.ipa.middlebury.edu, ldap://server3.ipa.middlebury.edu<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But this still failed. However, if I do something similar in /etc/ldap.conf:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> uri ldap://server1.ipa.middlebury.edu ldap://server2.ipa.middlebury.edu ldap://server3.ipa.middlebury.edu<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">then logins work. In fact, I don't even need the change in sssd.conf. I can put that back the way it was, and logins still work. It's only the line in /etc/ldap.conf that seems to be necessary.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So, I have two questions:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">1. Am I understanding this correctly?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2. If so, is there a way to automate this so that when I run ipa-client-install on my RHEL 5 clients, they get the correct LDAP settings from the beginning, and I don't have to go and manually edit the ldap.conf file?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">David Guertin<o:p></o:p></p>
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