Difference between revisions of "Kerberos"

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This page details the Kerberos configuration at ProgClub. Check out [[Network administration]] for other network admin related material. See [[Single sign-on]] for other SSO related material. See [[Projects]] for other projects.
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The Myth with the Tea Cup Pomeranian
 
 
== Project status ==
 
 
 
Complete! [[Charity]] is now [[#KDC_configuration|configured]] as the KDC. We've even finished SSH integration, and other things for [[Single sign-on]].
 
 
 
== Contributors ==
 
 
 
Members who have contributed to this project. Newest on top.
 
 
 
* [[User:John|John]]
 
 
 
All contributors have agreed to the terms of the [[ProgClub:Copyrights#ProgClub_projects|Contributor License Agreement]]. This excludes any upstream contributors who tend to have different administrative frameworks.
 
 
 
== Copyright ==
 
 
 
Copyright 2011, [[Kerberos#Contributors|Contributors]]. Licensed under the [[New BSD]] license.
 
 
 
== Links ==
 
 
 
* [http://web.mit.edu/Kerberos/ Kerberos]
 
* [http://www.kerberos.org/ Kerberos consortium]
 
* [http://en.wikipedia.org/wiki/Kerberos_%28protocol%29 Kerberos on Wikipedia]
 
 
 
== TODO ==
 
 
 
Nothing to see here, it's all done!
 
 
 
== Done ==
 
 
 
See [[Network administration]] and [[Charity admin]].
 
 
 
== DNS configuration ==
 
 
 
See [http://web.mit.edu/Kerberos/krb5-1.9/krb5-1.9.1/doc/krb5-install.html#Hostnames%20for%20the%20Master%20and%20Slave%20KDCs Hostnames for the Master and Slave KDCs] for information about configuring DNS for Kerberos. ProgClub's DNS configuration for Kerberos is as follows:
 
 
 
=== progclub.org ===
 
 
 
    $ORIGIN progclub.org.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
=== progclub.com ===
 
 
 
    $ORIGIN progclub.com.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
=== progclub.info ===
 
 
 
    $ORIGIN progclub.info.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
=== progclub.net ===
 
 
 
    $ORIGIN progclub.net.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
=== progclub.co ===
 
 
 
    $ORIGIN progclub.co.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
=== progclub.mobi ===
 
 
 
    $ORIGIN progclub.mobi.
 
    _kerberos              TXT      "PROGCLUB.ORG"
 
    kerberos                CNAME    charity
 
    _kerberos._udp          SRV      0 0 88 charity
 
    _kerberos-adm._tcp      SRV      0 0 749 charity
 
    _kpasswd._udp          SRV      0 0 464 charity
 
 
 
== KDC configuration ==
 
 
 
The KDC (Key Distribution Centre) for ProgClub is [[Charity|charity.progclub.org]], aliased as kerberos.progclub.*.
 
 
 
=== Configuration ===
 
 
 
root@charity:/etc# ll kr*
 
-rw-r--r-- 1 root root 1755 2011-08-05 02:36 krb5.conf
 
 
   
 
   
krb5kdc:
+
Let's get 1 thing straight coming from the beginning, there is truly no this sort of thing since a tea cup Pomeranian. Nor perhaps there is a toy, pants pocket or miniature pom. Any individual selling you pom with the above labels is actually a fraud more involved in making money than ensuring that his/her puppies go to your good family.  
total 20
 
drwx------  2 root root 4096 2011-08-04 11:57 ./
 
drwxr-xr-x 78 root root 4096 2011-08-05 02:37 ../
 
-rw-r--r--  1 root root  353 2011-08-04 11:53 kadm5.acl
 
-rw-r--r--  1 root root  640 2011-08-04 11:49 kdc.conf
 
-rw-------  1 root root  65 2011-08-04 11:57 stash
 
 
 
root@charity:/etc# cat krb5.conf
 
[logging]
 
        default = FILE:/var/log/krb5.log
 
 
   
 
   
[libdefaults]
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A Pomeranian should way 3 to 7lbs, based on no matter if it'ersus a male or a female. The height varies between 8 to 11 inches. The weight and size is defined by the AKC. If the breeder statements whatever else, think twice about buying there.  
        default_realm = PROGCLUB.ORG
 
 
   
 
   
# The following krb5.conf variables are only for MIT Kerberos.
+
This specific small but feisty dog is actually one of the smallest dog breeds available. It's about the same size because a chihuahua. Breeding dogs that are any smaller would always be inhuman. Many so called "toy" dog breeds suffer from just about all kinds of health symptoms. Chihuahuas for example can develop serious symptoms like their brains can grow more substantial than their skulls.  
        krb4_config = /etc/krb.conf
 
        krb4_realms = /etc/krb.realms
 
        kdc_timesync = 1
 
        ccache_type = 4
 
        forwardable = true
 
        proxiable = true
 
 
   
 
   
# The following encryption type specification will be used by MIT Kerberos
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After which there'utes the added risk of broken bones. Plenty of tiny dogs have broken bones while jumping of their proprietor'utes lap or couch. Their tiny bones are so fragile, tripping over your dog could be considered a death sentence.  
# if uncommented.  In general, the defaults in the MIT Kerberos code are
 
# correct and overriding these specifications only serves to disable new
 
# encryption types as they are added, creating interoperability problems.
 
#
 
# Thie only time when you might need to uncomment these lines and change
 
# the enctypes is if you have local software that will break on ticket
 
# caches containing ticket encryption types it doesn't know about (such as
 
# old versions of Sun Java).  
 
 
   
 
   
#      default_tgs_enctypes = des3-hmac-sha1
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Don'big t get me wrong, I think poms are a great breed. I would like to warn you for scrupulous breeders trying to make a buck in the latest rage.
#      default_tkt_enctypes = des3-hmac-sha1
 
#      permitted_enctypes = des3-hmac-sha1
 
 
   
 
   
# The following libdefaults parameters are only for Heimdal Kerberos.
+
Search for a reputable breeder. One that raises the puppies in the/her property and lets you visit them several times. Make sure the breeder selects on character and health, not just attractiveness. Would you fairly have a wholesome pom that'utes maybe a little on the large side, or one which would become considered a tea cup Pomeranian which you have to take to the vet every single other week? If you care about your future dog, and I'm positive you carry out, I know you'll make the right decision.  
        v4_instance_resolve = false
+
http://magpediarocksballs.com/index.php?title=HuppBettencourt298&action=edit
        v4_name_convert = {
 
                host = {
 
                        rcmd = host
 
                        ftp = ftp
 
                }
 
                plain = {
 
                        something = something-else
 
                }
 
        }
 
        fcc-mit-ticketflags = true
 
 
[realms]
 
        PROGCLUB.ORG = {
 
                kdc = kerberos.progclub.org:88
 
                admin_server = kerberos.progclub.org
 
                default_domain = progclub.org
 
        }
 
 
[domain_realm]
 
        .progclub.org = PROGCLUB.ORG
 
        progclub.org = PROGCLUB.ORG
 
        .progclub.com = PROGCLUB.ORG
 
        progclub.com = PROGCLUB.ORG
 
        .progclub.info = PROGCLUB.ORG
 
        progclub.info = PROGCLUB.ORG
 
        .progclub.net = PROGCLUB.ORG
 
        progclub.net = PROGCLUB.ORG
 
        .progclub.co = PROGCLUB.ORG
 
        progclub.co = PROGCLUB.ORG
 
        .progclub.mobi = PROGCLUB.ORG
 
        progclub.mobi = PROGCLUB.ORG
 
 
[login]
 
        krb4_convert = true
 
        krb4_get_tickets = false
 
 
 
root@charity:/etc# cat krb5kdc/kadm5.acl
 
# This file is the access control list for krb5 administration.
 
# When this file is edited run /etc/init.d/krb5-admin-server restart to activate
 
# One common way to set up Kerberos administration is to allow any principal
 
# ending in /admin  is given full administrative rights.
 
# To enable this, uncomment the following line:
 
*/admin@PROGCLUB.ORG    *
 
 
 
root@charity:/etc# cat krb5kdc/kdc.conf
 
[kdcdefaults]
 
    kdc_ports = 750,88
 
    default_realm = PROGCLUB.ORG
 
 
[realms]
 
    PROGCLUB.ORG = {
 
        database_name = /var/lib/krb5kdc/principal
 
        admin_keytab = FILE:/etc/krb5kdc/kadm5.keytab
 
        acl_file = /etc/krb5kdc/kadm5.acl
 
        key_stash_file = /etc/krb5kdc/stash
 
        kdc_ports = 750,88
 
        max_life = 10h 0m 0s
 
        max_renewable_life = 7d 0h 0m 0s
 
        master_key_type = des3-hmac-sha1
 
        supported_enctypes = aes256-cts:normal arcfour-hmac:normal des3-hmac-sha1:normal des-cbc-crc:normal des:normal des:v4 des:norealm des:onlyrealm des:afs3
 
        default_principal_flags = +preauth
 
    }
 
 
 
=== Database ===
 
 
 
root@charity:/etc# cd /var/lib/krb5kdc/
 
root@charity:/var/lib/krb5kdc# ll
 
total 24
 
drwx------  2 root root 4096 2011-08-04 11:57 ./
 
drwxr-xr-x 30 root root 4096 2011-08-04 11:37 ../
 
-rw-------  1 root root 8192 2011-08-05 02:55 principal
 
-rw-------  1 root root 8192 2011-08-04 11:57 principal.kadm5
 
-rw-------  1 root root    0 2011-08-04 11:57 principal.kadm5.lock
 
-rw-------  1 root root    0 2011-08-05 02:55 principal.ok
 
 
 
=== Keytab files ===
 
 
 
root@charity:/var/lib/krb5kdc# cd /etc
 
root@charity:/etc# find -name "*.keytab"
 
./apache2/apache2.keytab
 

Revision as of 21:35, 1 July 2012

The Myth with the Tea Cup Pomeranian

Let's get 1 thing straight coming from the beginning, there is truly no this sort of thing since a tea cup Pomeranian. Nor perhaps there is a toy, pants pocket or miniature pom. Any individual selling you pom with the above labels is actually a fraud more involved in making money than ensuring that his/her puppies go to your good family.

A Pomeranian should way 3 to 7lbs, based on no matter if it'ersus a male or a female. The height varies between 8 to 11 inches. The weight and size is defined by the AKC. If the breeder statements whatever else, think twice about buying there.

This specific small but feisty dog is actually one of the smallest dog breeds available. It's about the same size because a chihuahua. Breeding dogs that are any smaller would always be inhuman. Many so called "toy" dog breeds suffer from just about all kinds of health symptoms. Chihuahuas for example can develop serious symptoms like their brains can grow more substantial than their skulls.

After which there'utes the added risk of broken bones. Plenty of tiny dogs have broken bones while jumping of their proprietor'utes lap or couch. Their tiny bones are so fragile, tripping over your dog could be considered a death sentence.

Don'big t get me wrong, I think poms are a great breed. I would like to warn you for scrupulous breeders trying to make a buck in the latest rage.

Search for a reputable breeder. One that raises the puppies in the/her property and lets you visit them several times. Make sure the breeder selects on character and health, not just attractiveness. Would you fairly have a wholesome pom that'utes maybe a little on the large side, or one which would become considered a tea cup Pomeranian which you have to take to the vet every single other week? If you care about your future dog, and I'm positive you carry out, I know you'll make the right decision. http://magpediarocksballs.com/index.php?title=HuppBettencourt298&action=edit