Stadm1: Created page with "This page is an archive and used for reference, just my thoughts and notes from when first installing AD on centos ==Installing Samba 4 onto CentOS== Install a minimal inst..."

2014-09-26T20:50:57Z

Created page with "*This page is an archive and used for reference, just my thoughts and notes from when first installing AD on centos ==Installing Samba 4 onto CentOS== *Install a minimal inst..."

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*This page is an archive and used for reference, just my thoughts and notes from when first installing AD on centos

==Installing Samba 4 onto CentOS==
*Install a minimal install of CentOS 6.5
*The following install and file Locations/Names are a bit different for Centos 7, once configured though installing and managing Samba4 should be the same
*change the hostname
vi /etc/sysconfig/network
*Edit "HOSTNAME=***" to say "HOSTNAME=samba" or whatever you want to name the server
*manually edit or add network-scripts if not there
cd /etc/sysconfig/network-scripts/
vi ifcfg-eth0
*Make sure these options are included
DEVICE=eth0
HWADDR=**:**:**:**:**:**
TYPE=ETHERNET
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=dhcp
*restart the network
service network restart
*run yum update
*install vim or an editor of your choice, vi comes included with minimal
*SELinux must be disabled:
vim /etc/sysconfig/selinux
*change "SELINUX=enforcing" to "SELINUX=disabled"
*restart the computer
shutdown -r now
*required:
yum install gcc libacl-devel libblkid-devel gnutls-devel \
readline-devel python-devel gdb pkgconfig krb5-workstation \
zlib-devel setroubleshoot-server libaio-devel \
setroubleshoot-plugins policycoreutils-python \
libsemanage-python setools-libs-python setools-libs \
popt-devel libpcap-devel sqlite-devel libidn-devel \
libxml2-devel libacl-devel libsepol-devel libattr-devel \
keyutils-libs-devel cyrus-sasl-devel cups-devel bind-utils \
glibc glibc-devel gcc libacl-devel krb5-server krb5-workstation krb5-libs pam_krb5 make gnutls-devel openldap-devel openldap-clients openldap-servers openldap-servers-sql \
openssl-devel bind bind-libs bind-utils libblkid-devel readline-devel gdb python-devel cups sqlite-devel \
setroubleshoot-server popt-devel libxml2-devel libpcap-devel libidn-devel cups-devel ctdb-devel pam-devel gnutls-devel \
krb5-server-ldap nss-pam-ldapd pam_ldap openssh-ldap python-ldap docbook-style-xsl

*install git, git will be used to download samba if using developer version of samba
yum install git-core
git clone http://
*master git now located at(3-17-14)
git://
*For stable Samba version visit
*or:
wget http://
*reboot server so all packages and updates are applied
shutdown -r now
*Extract the archive if not done so already
*Build the samba install, replace samba-master with samba-[Version#]
cd ~/samba-master
./configure --enable-debug --enable-selftest
*if it completes successfully, make sure it is Building with Active Directory support, if not you may have forgotten a few packages
make
make install

==Creating script for starting and stopping samba service==
cd /etc/init.d
cp rdisc samba
vim samba
:%s/rdisc/samba/g
:wq
*change daemon location from /sbin/samba to /usr/loca/samba/sbin/samba, as well as killproc location
*Delete RDISCOPT variable, remove usage from daemon command
*change what gets echoed to the screen

==Enabling Samba 4 as DC==
*add samba path to $PATH
echo 'export PATH=$PATH:/usr/local/samba/bin' >> ~/.bashrc
echo 'export PATH=$PATH:/usr/local/samba/sbin' >> ~/.bashrc
*run command
/usr/local/samba/bin/samba-tool domain provision
*the domain-provision tool should pick all defaults automatically, however they can be changed to your liking
*once the provision tool has finished successfully restart the server
shutdown -r now
*once system has started enable samba 4 and add it start at boot, change to start with chkconfig after service script is created
/usr/local/samba/sbin/samba
vim /etc/rc.d/rc.local
*append "/usr/local/samba/sbin/samba" without quotations to the end of the file and then save
*samba version as well as samba client version can be checked using the following commands
/usr/local/samba/sbin/samba -V
/usr/local/samba/bin/smbclient --version

==Configuring DNS==
*DNS forwarding was set up on the domain provision ing using the samba-tool
cat /usr/local/samba/etc/smb.conf
*there should be a line under "[global]" that says "dns forwarder = ***.***.***.***", if not it was not enabled during domain provisioning
*edit resolv.conf
vim /etc/resolv.conf
*edit to look exactly like:
domain mydomain.com
nameserver 128.***.***.**
*where "128.***.***.***" is the ipaddress of the centos server
*next go back and edit ifcfg-eth0 in network-scripts
vim /etc/sysconfig/network-scripts/ifcfg-eth0
*change the file to look like this
DEVICE="eth0"
BOOTPROTO="none"
DNS1="128.***.***.**" #this is host ipaddress
GATEWAY=128.**.***.*
HWADDR="84:B4:C1:0A:**:**"
IPADDR="128.***.***.**"
IPV6INIT="no"
NM_CONTROLLED="yes"
ONBOOT="yes"
PREFIX="24"
TYPE="Ethernet"
*reboot so that all changes may take effect
shutdown -r now
*login and test that the DNS is working properly
host -t SRV _ldap._tcp.mydomain.com
*where mydomain.com is then name of the domain you are on
*output should look like, where samba is the hostname of your server
_ldap._tcp.mydomain.com has SRV record 0 100 389 samba.mydomain.com
*test with
host -t SRV _kerberos._udp.mydomain.com
*output
_kerberos._udp.mydomain.com has SRV record 0 100 88 samba.mydomain.com
*last test
host -t A samba.mydomain.com.
*output should return your ip adddress
samba.mydomain.com has address 192.168.0.2
*if test did not produce those outputs DNS has not been configured properly

==Firewall==
*settings:
-A INPUT -p tcp --dport 53 -j ACCEPT
-A INPUT -p udp --dport 53 -j ACCEPT
-A INPUT -p udp --dport 137:138 -j ACCEPT
-A INPUT -p tcp --dport 139 -j ACCEPT
-A INPUT -p tcp --dport 445 -j ACCEPT
-A INPUT -p tcp --dport 135 -j ACCEPT
-A INPUT -p tcp --dport 88 -j ACCEPT
-A INPUT -p udp --dport 88 -j ACCEPT
-A INPUT -p tcp --dport 464 -j ACCEPT
-A INPUT -p tcp --dport 389 -j ACCEPT
-A INPUT -p udp --dport 389 -j ACCEPT
-A INPUT -p tcp --dport 1024 -j ACCEPT

-A INPUT -p tcp --dport 636 -j ACCEPT
-A INPUT -p tcp --dport 3268 -j ACCEPT
-A INPUT -p tcp --dport 3269 -j ACCEPT
-A INPUT -p udp --dport 445 -j ACCEPT
-A INPUT -p tcp --dport 25 -j ACCEPT
-A INPUT -p tcp --dport 135 -j ACCEPT
-A INPUT -p tcp --dport 5722 -j ACCEPT
-A INPUT -p udp --dport 464 -j ACCEPT
-A INPUT -p tcp --dport 137 -j ACCEPT

==Kerberos==
*make a backup of original kerberos file and replace it with the copy generated by samba
mv /etc/krb5.conf /etc/krb5.conf.bak
cp /usr/local/samba/share/setup/krb5.conf /etc/krb5.conf
*edit the new krb5.conf file and change the ${REALM} variable to the realm selected during domain provisioning, ALL CAPS
vim /etc/krb5.conf
*test Kerberos using the kinit command
kinit administrator@MYDOMAIN.COM
*if Kerberos is working you will be asked for your password
*verify that it is working by running klist, output should look something along the lines of
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator@MYDOMAIN.COM

Valid starting Expires Service principal
07/25/13 15:23:33 07/26/13 1:23:33 krbtgt/MYDOMAIN.COM@MYDOMAIN.COM
renew until 07/26/13 15:23:31

==NTP==
*install ntp
yum install ntp
*start ntp
/etc/init.d/ntpd start
*add ntp to start up
chkconfig ntpd on

=Windows Domain=
==Add Windows computer to domain==
*manually edit network settings to point DNS to samba4 server
*assign static ip so there are no problems with joining computers to domain
*ping samba4 server at ip address to verify you can see it
ping 128.***.***.****
*ping FQDN to verify DNS is working
ping samba4.mydomain.com
*should get replies form both verifying that you can communicate with server and that DNS is functioning
*run the date command in your server
date
*Change the date and time on Windows Computer so that it is within a few seconds of the server, Kerberos requires the times between computers be no more than a few seconds apart
*Right click on "My Computer" and click "Properties"
*Under "Computer name, domain, and workgroup settings" click change settings
*Under "Member of" check "Domain"
*Type in the name of your domain in full uppercase letters, ex.
**MYDOMAIN.COM
*When asked enter in the username and password for the Administrator created during the samba-tool domain provisioning
*Once you have joined the domain restart the computer and you can now log in to the domain

==Adding Profile path to Samba==
*make a folder where the profiles will be stored
mkdir /usr/local/samba/var/profiles
*Add the following to smb.conf to inlcude that location
vim /usr/local/samba/var/profiles

[profiles]
path = /usr/local/samba/etc/smb.conf
read only = No
*restart samba
/usr/local/samba/bin/smbcontrol all reload-config
*once restarted check the shares on your samba server, profiles should appear under there
smbclient -L localhost -U%

==Change Security on Profiles folder==
*login to the domain as administrator onto a windows 7 computer
*open up my computer and navigate to "\\servername" , ex. "\\samba4"
*Right Click on the folder and select properties
*Change security to allow Domain Administrators Full Control
*add Domain Users to Security with options, Traverse folder/execute file. List Folder/read data, Create folder/append data
==Install RSAT==
*Download Remote Server Administration Tool from the microsoft website
*Install, Once installed open up control panel and then open up programs, then programs and features
*on the left pane click "Turn Windows features on or off"
*Select all under Remote Server Administration Tool, then click okay
==Adding User and profile path==
*From a windows computer with RSAT installed run: dsa.msc
*create a new user and edit its properties to include a profile path of "\\servername\profiles\%USERNAME%"
*then run: gpupdate /force
*Login with new user on domain and roaming profile will be created under /usr/local/samba/var/profiles on the server
*If you're having Group Policy Issues you can view what has been applied by gpresult
*From command line run:
gpresult /H filename.html
*or if you only want Computer Configuration(must be run as an administrator)
gpresult /SCOPE COMPUTER /H filename.html
*Login with new user on domain and roaming profile will be created under /usr/local/samba/var/profiles on the server

==Folder Security==
*create a share for where users folder redirections will go, want on a NFS, demoing on local drive
[users]
path = usr/local/samba/var/data/users
comment = temp user folders for folder redirection, move to NFS
read only = No
*make the folder or have the NFS mouted
mkdir -p usr/local/samba/var/data/users
chown root:3000000 usr/local/samba/var/data/users
chmod 755 usr/local/samba/var/data/users
*login into windows computer using a domain administrator to change permissions on users folder
*navigate to users folder on windows computer \\domainame.edu
*right click on users folder and select properties, go to security tab, click on advanced, click change permissions
*remove all current permissions, add new permissions making sure "Include inheritable permissions from the object's parents" is NOT checked
*add:
**Administrator: Full Control : This Folder, Subfolder, and Files
**Domain Admins: Full Control : This Folder, Subfolder, and Files
**SYSTEM: Full Control : This Folder, Subfolder, and Files
**CREATOR OWNER: Full Control : Subfolder, and Files
**Authenticated Users: Traverse Folder/Execute FIle, List Folder/Read Data, Create Files/Write Data, Create Folders/Append Data, Change Permissions: This Folder Only
*restart service and check that settings stay
*using getfacl
getfacl /data/users
*returns
# file: users
# owner: root
# group: root
user::rwx
user:root:rwx
group::---
group:root:---
group:3000002:rwx
group:3000003:rwx
group:3000008:rwx
mask::rwx
other::---
default:user::rwx
default:user:root:rwx
default:group::---
default:group:root:---
default:group:3000002:rwx
default:group:3000008:rwx
default:mask::rwx
default:other::---
==Folder Redirection with GPO==
*Download admx files for windows 7/2008 and place them in \\mydomain.edu\sysvol\domainname.edu\policies\PolicyDefinitions
*service samba restart
*Create OU in AD and add a couple users
*Open up Group Policy Management
*Do not edit default domain policy, instead right click on the OU, Create GPO and link to OU
*edit linked GPO
*Go to User Configuration => Policies => Windows Settings => Folder Redirection
*Click each folder and change setting under "Target" tab to:
**Setting: Basic - Redirect everyone's folder to the same location
**Target Folder Location: Create a folder for each user under the root path
**Root path:\\MYDOMAIN.EDU\users
*under the "Settings" tab
**Uncheck "Grant the user exclusive rights to (name_of_folder)"
**under policy removal: Leave the folder in the new location when policy is removed should remain checked
*Since folder redirection windows will ask for conformation every time you try and open a shortcut because they are stored on NFS
*Go to User Configuration => Policies => Windows Settings => Internet Explorer Maintenance => Security
**NOTE!!!: This can only be done from a Windows 7 Machine running RSAT, server 2012 and Windows 8 deprecated this feature

*Double Click Security Zones and Content Ratings
*A windows may pop up before you can edit settings click "continue"
*click modify settings, click on Local intranet, click Sites, click Advanced
*add:
file://mydomain.edu
*click, close, OK, OK, and Apply
*Configuring Automatic Resolution Policy(when sync conflicts rise keep the last modified file)
*Navigate to Computer Configuration => Preferences => Windows Settings => Registry
*create a new registry item
*add: Software\Microsoft\Windows\CurrentVersion\NetCache\SyncConflictHandling :to the key path
*in the UNC path add the share you want to Auto resolve conflicts with, \\DOMAIN\users
*set Value Data to 4
**0-7:
***1:Keep the local state. This overwrites the remote copy with the local copy's contents. If the local copy was deleted, this deletes the remote copy on the server.
***2:Keep the remote state. This overwrites the local copy with the remote copy's contents. If the remote copy was deleted, this deletes the local copy in the Offline Files cache.
***4:Retains the state of the latest operation as determined by last-change times of the items in conflict. If the local item was deleted, the time of deletion is used for comparison.
*save and apply

==Map a Network Drive with GPO==
*Go to User Configuration => Preferences => Windows Settings => Drive Maps
*Create new mapped drive with:
Action:Create
Location: \\mydomainname.edu\folder\location
Reconnect:Checked
Use:"*" (pick any drive letter)
Hide/Show this drive:Show this Drive
Hide/Show all drives:No Change
*click Okay
*samba must be restarted for GPO to take effect
*make sure all the right ports are open on your firewall or mapped drive may not connect, tcp 137, udp 137 etc..

==Windows Update GPO==
*Download ADM files from Microsoft
*Install when asked, navigate to where it installed the ADM files. Usually C:\Program Files(x86)\Microsoft Group Policy\Windows Server...\...
*copy only wuau.adm to \\mydomain.edu\sysvol\mydomain.edu\Policies\PolicyDefinitions\
*Edit GPO
*Go to Computer Configuration => Policies => Administrative Templates => Windows Components => Windows Update
*still testing, enable the following
Configure Automatic Updates: Enabled: Auto Download and Schedule Install: Every Day: 17:00
Specify intranet Microsoft update service location: Enabled: http://servername:port, http://servername:port
Automatic Updates Detection Frequency: enabled 12 hours
Allow non administrators to receive update notifications : enabled
Allow Automatic Updates immediate installation: Enabled
No auto-restart with logged on user for scheduled automatic updates installations: Enabled
Reschedule Automatic Updates scheduled installations: Enabled: 10 minutes
Enable clients-de targeting: Enabled or Disabled, can be used to organize wsus better
Allow signed updates from an intranet Microsoft update service location: enabled

==SSSD==
vim /etc/sssd/sssd.conf
[domain/default]
ldap_tls_reqcert = allow
ldap_id_use_start_tls = True
cache_credentials = True
ldap_search_base = dc=domain,dc=edu
krb5_realm = $REALM
id_provider = ldap
auth_provider = ldap
chpass_provider = ldap
ldap_uri = ldap://domain.edu
ldap_tls_cacertdir = /etc/openldap/cacerts
ldap_schema = rfc2307bis
ldap_user_fullname = displayName
ldap_user_search_base = ou=idmap,dc=domain,dc=edu
ldap_group_search_base = ou=Group,dc=domain,dc=edu
ldap_group_member = member
ldap_group_nesting_level = 4
ldap_tls_cacert = /etc/openldap/cacerts/cacert.pem
ldap_tls_reqcert = demand
ldap_default_bind_dn = cn=Manager,dc=domain,dc=edu
ldap_default_authtok_type = password
ldap_default_authtok = ******
debug_level = 8
[sssd]
services = nss, pam
config_file_version = 2
domains = default
[nss]

[pam]

==ACL==
*set privileges
net rpc rights grant 'Domain\Domain Admins' SeDiskOperatorPrivilege -Uadministrator
*view privileges
net rpc rights list accounts -Uadministrator

*add group acl to folder or file
setfacl -m "g:groupname:permissions" folder

*get and set acls
getfacl x | setfacl -R –setfile = -y

==Misc==
*after a yum update portreserve may have been updated and interferes with samba
*holds a lock on port 636 for slapd, samba provides an ldap service on 636 so slapd cannot hold it
*go to /etc/portreserve and remove the slapd file, restart server, portreserve will not hold lock in 636 anymore and samba can use it
cd /etc/portreserve
rm slapd
*deleting regedit user profile

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Stadm1: Created page with "*This page is an archive and used for reference, just my thoughts and notes from when first installing AD on centos ==Installing Samba 4 onto CentOS== *Install a minimal inst..."

Stadm1: Created page with "This page is an archive and used for reference, just my thoughts and notes from when first installing AD on centos ==Installing Samba 4 onto CentOS== Install a minimal inst..."