This is required as moonshot currently stores its modified libraries separately to the main system ones to avoid conflicts. This should not be necessary in the future.
-
-### SELinux set to permissive
-Moonshot has a couple of outstanding issues regarding proper labeling of _SELinux_ contexts, causing it to fail when _SELinux_ is enforcing. This should be resolved soon - change the setting in _/etc/sysconfig/selinux_, or in _/etc/rc.local_:
-
- echo 0 > /selinux/enforce
-
-### EPEL
-Moonshot needs __EPEL__ for a few extra libraries (as pulling them from a semi-supported repository is preferable to repackaging).<br />
-The simplest way to install EPEL is:
-
- yum install epel-release
-
-## Moonshot Packages
-The RPM's and SRPM's for moonshot are currently hosted at [http://yum.dev.ja.net] - this may change (and in fact, is quite likely to change) in the future. The packages are currently unsigned.
-
-
-
-First we need to install and configure moonshot, its dependencies, and a local RADIUS server for testing
-In a real deployment, a local RADIUS server is not needed, however it simplifies testing if one is available
-__gss-server__ and __gss-client__ are standard Kerberos diagnostic tools, which give us a lot of information that is helpful for debugging
-Again, in a real deployment these are not required, but help with testing
-
-This guide walks through deploying the client, IdP and SP portions of moonshot - depending on your target, some steps may be inappropriate.
-
-## Environment
-### LD_LIBRARY_PATH
-__LD_LIBRARY_PATH__ has to have _/opt/moonshot/lib64/_ and _/usr/lib64/freeradius_ added to it.<br />
-The best way to do this is create a file at _/etc/profile.d/moonshot.sh_, with the following:
-
- if [ [ $LD_LIBRARY_PATH != */opt/moonshot/lib64/:/usr/lib64/freeradius/* ] ]
- then
- export LD_LIBRARY_PATH=/opt/moonshot/lib64/:/usr/lib64/freeradius/:$LD_LIBRARY_PATH
- fi
-
-This is required as moonshot currently stores its modified libraries separately to the main system ones to avoid conflicts. This should not be necessary in the future.
-
-
### SELinux set to permissive
Moonshot has a couple of outstanding issues regarding proper labeling of _SELinux_ contexts, causing it to fail when _SELinux_ is enforcing. This should be resolved soon - change the setting in _/etc/sysconfig/selinux_, or in _/etc/rc.local_:
yum install freeradius krb5-moonshot-devel moonshot-gss-eap
-
Once FreeRADIUS is installed, a source of identity needs to be enabled - either the roaming network in the case of an ORPS, or AD/LDAP/etc for an IdP. For now, we'll just use a flat file. Open _/etc/raddb/users_ and locate the following fragment:
Finally, set the EAP type in use by moonshot (EAP-TTLS) by editing _/etc/raddb/eap.conf_
default_eap_type = md5
+
+becomes:
+
+ default_eap_type = ttls
+
+Other EAP types should be supported (PEAP and MD5 tested).
FreeRADIUS now has a very minimal IdP/ORPS configuration, and can be started with:
service radiusd restart
-
If you encounter any issues, you can run radius in debug mode to see what is going on internally.
service radiusd stop
##Moonshot Proper
First we need a minimal _/etc/radsec.conf_
- dictionary = "/etc/raddb/dictionary"
realm gss-eap {
type = "UDP"
###gss_eap_id
-Next, a file is created in the home directory at _~/.gss_eap_id_ – this is the file that moonshot looks in for credentials.
-The format is very simple – username followed by a password. For now, set it to:
+Next, a file is created in the home directory at _~/.gss\_eap\_id_ – this is the file that moonshot looks in for credentials.
+The format is very simple – username followed by a password on separate lines. For now, set it to:
+
steve
testing
In this case, 89 corresponds to _Chargeable-User-Identity_, which is mapped to _local-login-user_, which sets the local account that the user will be given access to.
To load the moonshot extensions, under the root node in _/etc/shibboleth/shibboleth2.xml_, add:
+
<Extensions>
<Library path="plugins.so" fatal="true"/>
</Extensions>
As mentioned earlier, we will be using the Kerberos test tools to make sure that things are working.<br />
To start the _gss-server_, run:
+
/opt/moonshot/sbin/gss-server host@localhost &
There are two ways to start _gss-client_ – the first specifies an encryption method to use by its OID 1.3.6.1.4.1.5322.22.1.18 (as seen in /etc/gss/mech):
- /opt/moonshot/bin/gss-client -mech "{1 3 6 1 4 1 5322 22 1 18}" 127.0.0.1 host@localhost bar
+ /opt/moonshot/bin/gss-client -mech "{1.3.6.1.5.5.15.1.1.18 }" 127.0.0.1 host@localhost bar
The second uses __Simple and Protected GSSAPI Negotiation Mechanism (SPNEGO)__<br />
This chooses the "best" mutually-agreeable encryption method for between client and server. To invoke the client using __SPNEGO__, use:
+
/opt/moonshot/bin/gss-client -spnego 127.0.0.1 host@localhost bar
##Sample Output
Running _gss-client_ produces a massive amount of output.<br />
The important part is at the end – you should see output similar to what is on the previous slide.<br />
If you do not see the line:
+
Attribute local-login-user Authenticated Complete
+
Then attribute mapping is not functioning properly, and you need to check your shibboleth configuration.
##SSH
yum install openssh-moonshot-clients openssh-moonshot-server
-
Inside _/etc/ssh/sshd\_config_, and if these values are not set already:<br />
Uncomment __UsePrivilegeSeparation__ and set it to __‘no’__
After successfully logging in, don’t forget to type __exit__ to end the SSH session and return to the root shell.<br />
Note in the SSH client command, the option __-l ""__ – this signifies that no username is to be sent to the SSH server.
+##Common Issues:
+
+###If you see:
+
+ connecting to server: Connection refused
+
+_gss-server_ is not running – start it again, and check its output for any reasons why it doesn't stay running
+
+###If you see:
+
+ GSS-API error initializing context: Unspecified GSS failure. Minor code may provide more information
+ GSS-API error initializing context: SPNEGO cannot find mechanisms to negotiate
+ reading token flags: 0 bytes read
+
+Then _/etc/gss/mech_ is invalid or missing
+
+###If you see:
+
+ Sending init_sec_context token (size=101)...continue needed...
+ CTRL-EVENT-EAP-STARTED EAP authentication started
+ GSS-API error accepting context: Unspecified GSS failure. Minor code may provide more information
+ GSS-API error accepting context:
+ Sending init_sec_context token (size=43)...continue needed...
+ GSS-API error initializing context: Unspecified GSS failure. Minor code may provide more information
+ GSS-API error initializing context: SPNEGO failed to negotiate a mechanism
+
+Your RADIUS server may not be running, or malfunctioning, run it in debug mode (as mentioned earlier) to find out why.
+
+###If you see:
+
+ Segmentation fault
+
+Then _~/.gss\_eap\_id_ is invalid or missing
+
+###If you see:
+
+ CTRL-EVENT-EAP-METHOD EAP vendor 0 method 4 (MD5) selected
+
+Then you have not correctly set the _default\_eap\_type_ on the RADIUS server.
+
+###If you see:
+
+ GSS-API error gss_pname_to_uid: Unspecified GSS failure. Minor code may provide more information
+ GSS-API error gss_pname_to_uid: Unknown error
+
+Then there is not a local user that matches your Chargeable-User-Identity
+
+###If you see…
+
+ /opt/moonshot/bin/gss-client: relocation error: /opt/moonshot/bin/gss-client: symbol gss_acquire_cred_with_password, version gssapi_krb5_2_MIT not defined in file libgssapi_krb5.so.2 with link time reference
+
+Then LD_LIBRARY_PATH is not properly set
+
+
##Remote IdP
This is left for an exercise for the user - at this stage it should just be a case of changing _/etc/radsec.conf_ to point at the right RADIUSd
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