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Bug 1029046 - Implicit SSLEngine for 443 port breaks mod_nss configuration
Summary: Implicit SSLEngine for 443 port breaks mod_nss configuration
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: ipa
Version: 7.0
Hardware: Unspecified
OS: Unspecified
medium
unspecified
Target Milestone: rc
: ---
Assignee: Martin Kosek
QA Contact: Namita Soman
URL:
Whiteboard:
Depends On: 1023168 1061016
Blocks: 1029042 1029043
TreeView+ depends on / blocked
 
Reported: 2013-11-11 14:34 UTC by Martin Kosek
Modified: 2014-06-18 00:12 UTC (History)
6 users (show)

Fixed In Version: ipa-3.3.3-6.el7
Doc Type: Bug Fix
Doc Text:
Clone Of: 1023168
Environment:
Last Closed: 2014-06-13 10:47:44 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Martin Kosek 2013-11-11 14:34:59 UTC 
+++ This bug was initially created as a clone of Bug #1023168 +++

Description of problem:

This is a follow up for Bug 1018172. As Joe Orton commented, "Listen X https" or simply "Listen 443" now means an implicit "SSLEngine on" for the vhost. This does not play well when the HTTPS vhost is processed with mod_ssl and httpd won't start:

[Tue Oct 15 07:19:56.815573 2013] [ssl:emerg] [pid 4757] AH02240: Server should be SSL-aware but has no certificate configured [Hint: SSLCertificateFile] ((null):0)
[Tue Oct 15 07:19:56.815594 2013] [ssl:emerg] [pid 4757] AH02312: Fatal error initialising mod_ssl, exiting.

We should be able to at least set "SSLEngine off" in the mod_nss config to avoid this error.


Additional Note:

Our current workaround is to use "Listen 443 http".

+++++++++++++++++++++++++++

With httpd-2.4.6-6.fc20/httpd-2.4.6-7.el7, mod_nss can add 

 <IfModule mod_ssl.c>
    SSLEngine off
 </IfModule>

to vhosts in the default mod_nss.conf to avoid the "Listen X http" hack.

See Bug 1029042 and Bug 1029043 filed for mod_nss. When this is fixed in mod_nss, IPA should remove the "Listen 443 http" hack.
Comment 1 Martin Kosek 2013-11-11 17:56:09 UTC 
Upstream ticket:
https://fedorahosted.org/freeipa/ticket/4021
Comment 2 Petr Viktorin (pviktori) 2013-11-26 12:05:36 UTC 
Fixed upstream:
master: https://fedorahosted.org/freeipa/changeset/f20577ddc4ab40c2365c8abaa703d96019ec4eef/
ipa-3-3: https://fedorahosted.org/freeipa/changeset/3a11044664341257a3929da2db1c493659515eec/
Comment 3 Petr Viktorin (pviktori) 2013-12-02 11:54:47 UTC 
The change was removed from ipa-3-3 due to missing dependencies in Fedora 19.
RHEL will need to carry it as a patch.
Comment 5 Kaleem 2014-01-31 13:14:50 UTC 
Verified.

SSLEngine is off in mod_nss default install and also nss.conf only contains now "Listen 443" after install.

[root@rhel70-master ~]# rpm -q ipa-server mod_nss mod_ssl
ipa-server-3.3.3-15.el7.x86_64
mod_nss-1.0.8-32.el7.x86_64
mod_ssl-2.4.6-14.el7.x86_64
[root@rhel70-master ~]#

Steps perfomed for verification:
================================

(1)SSLEngine is off in nss.conf

[root@rhel70-master ~]# grep -r "SSLEngine off" /etc/httpd/conf.d/nss.conf 
    SSLEngine off
[root@rhel70-master ~]#

(2)Changed port 443 to 9000 in ssl.conf so that it does not conflicts with mod_nss configuration for ipa-server-install

[root@rhel70-master ~]# sed -i 's/443/9000/g' /etc/httpd/conf.d/ssl.conf
[root@rhel70-master ~]# grep -r 9000 /etc/httpd/conf.d/ssl.conf 
Listen 9000 https
<VirtualHost _default_:9000>
#ServerName www.example.com:9000
[root@rhel70-master ~]#

(3)Ran ipa-server-install 

[root@rhel70-master ~]# ipa-server-install --setup-dns --forwarder=10.65.201.89 --hostname=rhel70-master.testrelm.com -r TESTRELM.COM -n testrelm.com -p xxxxxxxx -P xxxxxxxx -a xxxxxxxx -U

The log file for this installation can be found in /var/log/ipaserver-install.log
==============================================================================
This program will set up the IPA Server.
..
...
....
.....
	2. You can now obtain a kerberos ticket using the command: 'kinit admin'
	   This ticket will allow you to use the IPA tools (e.g., ipa user-add)
	   and the web user interface.

Be sure to back up the CA certificate stored in /root/cacert.p12
This file is required to create replicas. The password for this
file is the Directory Manager password
[root@rhel70-master ~]# 

(4)No "Listen 443 http" in nss.conf after ipa-server-install.

[root@rhel70-master ~]# grep -r "Listen 443" /etc/httpd/conf.d/nss.conf 
Listen 443
[root@rhel70-master ~]#
Comment 6 Ludek Smid 2014-06-13 10:47:44 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.
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