Installing Satellite Server from a Disconnected Network

Procedure

1. Enter the following command with any additional options that you want to use:

   # satellite-installer --scenario satellite \
   --foreman-initial-organization "initial_organization_name" \
   --foreman-initial-location "initial_location_name" \
   --foreman-initial-admin-username admin_user_name \
   --foreman-initial-admin-password admin_password

   The script displays its progress and writes logs to /var/log/foreman-installer/satellite.log.

2. Unmount the ISO images:

   # umount /media/sat6
   # umount /media/rhel7-server

Procedure

1. Copy the default answer file /etc/foreman-installer/scenarios.d/satellite-answers.yaml to a location on your local file system.

   # cp /etc/foreman-installer/scenarios.d/satellite-answers.yaml \
   /etc/foreman-installer/scenarios.d/my-answer-file.yaml

2. To view all of the configurable options, enter the satellite-installer --scenario satellite --help command.
3. Open your copy of the answer file, edit the values to suit your environment, and save the file.

4. Open the /etc/foreman-installer/scenarios.d/satellite.yaml file and edit the answer file entry to point to your custom answer file.

   :answer_file: /etc/foreman-installer/scenarios.d/my-answer-file.yaml

5. Run the satellite-installer script.

   # satellite-installer --scenario satellite

6. Unmount the ISO images.

   # umount /media/sat6
   # umount /media/rhel7-server

Procedure

1. Navigate to the Red Hat Customer Portal at https://access.redhat.com/ and log in.
2. In the upper left of the window, click Downloads.
3. To the right of Red Hat Enterprise Linux 7, click Versions 7 and below.
4. From the Version list, select the required version of the Red Hat Enterprise Linux 7, for example 7.7.
5. In the Download Red Hat Enterprise Linux window, locate the binary DVD version of the ISO image, for example, Red Hat Enterprise Linux 7.7 Binary DVD, and click Download Now.
6. When the download completes, copy the ISO image to Satellite Server.

7. On Satellite Server, create a mount point and temporarily mount the ISO image at that location:

   # mkdir /mnt/iso
   # mount -o loop rhel-binary-dvd.iso /mnt/iso

8. Create Kickstart directories:

   # mkdir --parents \
   /var/www/html/pub/sat-import/content/dist/rhel/server/7/7.7/x86_64/kickstart/

9. Copy the kickstart files from the ISO image:

   # cp -a /mnt/iso/* /var/www/html/pub/sat-import/content/dist/rhel/server/7/7.7/x86_64/kickstart/

10. Add the following entries to the listing files:

    To the /var/www/html/pub/sat-import/content/dist/rhel/server/7/listing file, append the version number with a new line. For example, for the RHEL 7.7 ISO, append 7.7.

    To the /var/www/html/pub/sat-import/content/dist/rhel/server/7/7.7/listing file, append the architecture with a new line. For example, x86_64.

    To the /var/www/html/pub/sat-import/content/dist/rhel/server/7/7.7/x86_64/listing file, append kickstart with a new line.

11. Copy the .treeinfo files from the ISO image:

    # cp /mnt/iso/.treeinfo \
    /var/www/html/pub/sat-import/content/dist/rhel/server/7/7.7/x86_64/kickstart/treeinfo

12. If you do not plan to use the mounted binary DVD ISO image, unmount and remove the directory:

    # umount /mnt/iso
    # rmdir /mnt/iso

13. In the Satellite web UI, enable the Kickstart repositories.

Procedure

1. Navigate to the Red Hat Customer Portal at https://access.redhat.com/ and log in.
2. In the upper left of the window, click Downloads.
3. Click Red Hat Enterprise Linux 8.
4. In the Download Red Hat Enterprise Linux window, locate the binary DVD version of the ISO image, for example, Red Hat Enterprise Linux 8.1 Binary DVD, and click Download Now.
5. When the download completes, copy the ISO image to Satellite Server.

6. On Satellite Server, create a mount point and temporarily mount the ISO image at that location:

   # mkdir /mnt/iso
   # mount -o loop rhel-binary-dvd.iso /mnt/iso

7. Create directories for Red Hat Enterprise Linux 8 AppStream and BaseOS Kickstart repositories:

   # mkdir --parents \
   /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/kickstart
   
   # mkdir --parents \
    /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/kickstart

8. Copy the kickstart files from the ISO image:

   # cp -a /mnt/iso/AppStream/* \
   /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/kickstart
   
   # cp -a /mnt/iso/BaseOS/* /mnt/iso/images/ \
   /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/kickstart

   Note that for BaseOS, you must also copy the contents of the /mnt/iso/images/ directory.

9. Add the following entries to the listing files:

   To the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/listing file, append kickstart with a new line.

   To the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/listing file, append kickstart with a new line:

   To the /var/www/html/pub/sat-import/content/dist/rhel8/listing file, append the version number with a new line. For example, for the RHEL 8.1 binary ISO, append 8.1.

10. Copy the .treeinfo files from the ISO image:

    # cp /mnt/iso/.treeinfo \
    /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/kickstart/treeinfo
    
    # cp /mnt/iso/.treeinfo \
    /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/kickstart/treeinfo

11. Open the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/kickstart/treeinfo file for editing.

12. In the [general] section, make the following changes:

    • Change packagedir = AppStream/Packages to packagedir = Packages
    • Change repository = AppStream to repository = .
    • Change variant = AppStream to variant = BaseOS
    • Change variants = AppStream,BaseOS to variants = BaseOS
13. In the [tree] section, change variants = AppStream,BaseOS to variants = BaseOS.

14. In the [variant-BaseOS] section, make the following changes:

    • Change packages = BaseOS/Packages to packages = Packages
    • Change repository = BaseOS to repository = .
15. Delete the [media] and [variant-AppStream] sections.
16. Save and close the file.

17. Verify that the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/baseos/kickstart/treeinfo file has the following format:

    [checksums]
    images/efiboot.img = sha256:9ad9beee4c906cd05d227a1be7a499c8d2f20b3891c79831325844c845262bb6
    images/install.img = sha256:e246bf4aedfff3bb54ae9012f959597cdab7387aadb3a504f841bdc2c35fe75e
    images/pxeboot/initrd.img = sha256:a66e3c158f02840b19c372136a522177a2ab4bd91cb7269fb5bfdaaf7452efef
    images/pxeboot/vmlinuz = sha256:789028335b64ddad343f61f2abfdc9819ed8e9dfad4df43a2694c0a0ba780d16
    
    [general]
    ; WARNING.0 = This section provides compatibility with pre-productmd treeinfos.
    ; WARNING.1 = Read productmd documentation for details about new format.
    arch = x86_64
    family = Red Hat Enterprise Linux
    name = Red Hat Enterprise Linux 8.1.0
    packagedir = Packages
    platforms = x86_64,xen
    repository = .
    timestamp = 1571146127
    variant = BaseOS
    variants = BaseOS
    version = 8.1.0
    
    [header]
    type = productmd.treeinfo
    version = 1.2
    
    [images-x86_64]
    efiboot.img = images/efiboot.img
    initrd = images/pxeboot/initrd.img
    kernel = images/pxeboot/vmlinuz
    
    [images-xen]
    initrd = images/pxeboot/initrd.img
    kernel = images/pxeboot/vmlinuz
    
    [release]
    name = Red Hat Enterprise Linux
    short = RHEL
    version = 8.1.0
    
    [stage2]
    mainimage = images/install.img
    
    [tree]
    arch = x86_64
    build_timestamp = 1571146127
    platforms = x86_64,xen
    variants = BaseOS
    
    [variant-BaseOS]
    id = BaseOS
    name = BaseOS
    packages = Packages
    repository = .
    type = variant
    uid = BaseOS

18. Open the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/kickstart/treeinfo file for editing.

19. In the [general] section, make the following changes:

    • Change packagedir = AppStream/Packages to packagedir = Packages
    • Change repository = AppStream to repository = .
    • Change variants = AppStream,BaseOS to variants = AppStream
20. In the [tree] section, change variants = AppStream,BaseOS to variants = AppStream

21. In the [variant-AppStream] section, make the following changes:

    • Change packages = AppStream/Packages to packages = Packages
    • Change repository = AppStream to repository = .
22. Delete the following sections from the file: [checksums], [images-x86_64], [images-xen], [media], [stage2], [variant-BaseOS].
23. Save and close the file.

24. Verify that the /var/www/html/pub/sat-import/content/dist/rhel8/8.1/x86_64/appstream/kickstart/treeinfo file has the following format:

    [general]
    ; WARNING.0 = This section provides compatibility with pre-productmd treeinfos.
    ; WARNING.1 = Read productmd documentation for details about new format.
    arch = x86_64
    family = Red Hat Enterprise Linux
    name = Red Hat Enterprise Linux 8.1.0
    packagedir = Packages
    platforms = x86_64,xen
    repository = .
    timestamp = 1571146127
    variant = AppStream
    variants = AppStream
    version = 8.1.0
    
    [header]
    type = productmd.treeinfo
    version = 1.2
    
    [release]
    name = Red Hat Enterprise Linux
    short = RHEL
    version = 8.1.0
    
    [tree]
    arch = x86_64
    build_timestamp = 1571146127
    platforms = x86_64,xen
    variants = AppStream
    
    [variant-AppStream]
    id = AppStream
    name = AppStream
    packages = Packages
    repository = .
    type = variant
    uid = AppStream

25. If you do not plan to use the mounted binary DVD ISO image, unmount and remove the directory:

    # umount /mnt/iso
    # rmdir /mnt/iso

26. In the Satellite web UI, enable the Kickstart repositories.

1. To store all the source certificate files, create a directory that is accessible only to the root user.

   # mkdir /root/satellite_cert

2. Create a private key with which to sign the Certificate Signing Request (CSR).

   Note that the private key must be unencrypted. If you use a password-protected private key, remove the private key password.

   If you already have a private key for this Satellite Server, skip this step.

   # openssl genrsa -out /root/satellite_cert/satellite_cert_key.pem 4096

3. Create the /root/satellite_cert/openssl.cnf configuration file for the Certificate Signing Request (CSR) and include the following content:

   [ req ]
   req_extensions = v3_req
   distinguished_name = req_distinguished_name
   x509_extensions = usr_cert
   prompt = no
   
   [ req_distinguished_name ] 1
   C  = Country Name (2 letter code)
   ST = State or Province Name (full name)
   L  = Locality Name (eg, city)
   O  = Organization Name (eg, company)
   OU = The division of your organization handling the certificate
   CN = satellite.example.com 2
   
   [ v3_req ]
   basicConstraints = CA:FALSE
   keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
   extendedKeyUsage = serverAuth, clientAuth, codeSigning, emailProtection
   subjectAltName = @alt_names
   
   [ usr_cert ]
   basicConstraints=CA:FALSE
   nsCertType = client, server, email
   keyUsage = nonRepudiation, digitalSignature, keyEncipherment
   extendedKeyUsage = serverAuth, clientAuth, codeSigning, emailProtection
   nsComment = "OpenSSL Generated Certificate"
   subjectKeyIdentifier=hash
   authorityKeyIdentifier=keyid,issuer
   
   [ alt_names ]
   DNS.1 = satellite.example.com 3

   1

   In the [ req_distinguished_name ] section, enter information about your organization.

   2

   Set the certificate’s Common Name CN to match the fully qualified domain name (FQDN) of your Satellite Server. To confirm a FQDN, on that Satellite Server, enter the hostname -f command. This is required to ensure that the katello-certs-check command validates the certificate correctly.

   3

   Set the Subject Alternative Name (SAN) DNS.1 to match the fully qualified domain name (FQDN) of your server.

4. Generate the Certificate Signing Request (CSR):

   # openssl req -new \
   -key /root/satellite_cert/satellite_cert_key.pem \ 1
   -config /root/satellite_cert/openssl.cnf \ 2
   -out /root/satellite_cert/satellite_cert_csr.pem 3

   1

   Path to the private key.

   2

   Path to the configuration file.

   3

   Path to the CSR to generate.

5. Send the certificate signing request to the Certificate Authority. The same Certificate Authority must sign certificates for Satellite Server and Capsule Server.

   When you submit the request, specify the lifespan of the certificate. The method for sending the certificate request varies, so consult the Certificate Authority for the preferred method. In response to the request, you can expect to receive a Certificate Authority bundle and a signed certificate, in separate files.

1. Validate the custom SSL certificate input files. Note that for the katello-certs-check command to work correctly, Common Name (CN) in the certificate must match the FQDN of Satellite Server.

   # katello-certs-check \
   -c /root/satellite_cert/satellite_cert.pem \      1
   -k /root/satellite_cert/satellite_cert_key.pem \  2
   -b /root/satellite_cert/ca_cert_bundle.pem        3

   1

   Path to the Satellite Server certificate file that is signed by a Certificate Authority.

   2

   Path to the private key that was used to sign the Capsule Server certificate.

   3

   Path to the Certificate Authority bundle.

   If the command is successful, it returns two satellite-installer commands, one of which you must use to deploy a certificate to Satellite Server.

   Example output of katello-certs-check

   Validation succeeded.
   
   To install the Red Hat Satellite Server with the custom certificates, run:
   
     satellite-installer --scenario satellite \
       --certs-server-cert "/root/satellite_cert/satellite_cert.pem" \
       --certs-server-key "/root/satellite_cert/satellite_cert_key.pem" \
       --certs-server-ca-cert "/root/satellite_cert/ca_cert_bundle.pem"
   
   To update the certificates on a currently running Red Hat Satellite installation, run:
   
     satellite-installer --scenario satellite \
       --certs-server-cert "/root/satellite_cert/satellite_cert.pem" \
       --certs-server-key "/root/satellite_cert/satellite_cert_key.pem" \
       --certs-server-ca-cert "/root/satellite_cert/ca_cert_bundle.pem" \
       --certs-update-server --certs-update-server-ca

2. From the output of the katello-certs-check command, depending on your requirements, enter the satellite-installer command that installs a new Satellite with custom SSL certificates or updates certificates on a currently running Satellite.

   If you are unsure which command to run, you can verify that Satellite is installed by checking if the file /etc/foreman-installer/scenarios.d/.installed exists. If the file exists, run the second satellite-installer command that updates certificates.

   Important

   Do not delete the certificate archive file after you deploy the certificate. It is required, for example, when upgrading Satellite Server.

3. On a computer with network access to Satellite Server, navigate to the following URL: https://satellite.example.com.
4. In your browser, view the certificate details to verify the deployed certificate.

Procedure

1. Use the instructions in Attaching the Satellite Infrastructure Subscription to attach a Satellite subscription to your server.

2. Disable all repositories and enable only the following repositories:

   # subscription-manager repos --disable '*'
   # subscription-manager repos --enable=rhel-server-rhscl-7-rpms \
   --enable=rhel-7-server-rpms --enable=rhel-7-server-satellite-6.9-rpms

Procedure

1. To install MongoDB, enter the following command:

   # yum install rh-mongodb34 rh-mongodb34-syspaths

2. Start and enable the rh-mongodb34 service:

   # systemctl start rh-mongodb34-mongod
   # systemctl enable rh-mongodb34-mongod

3. Create a Pulp user on MongoDB for database pulp_database:

   # mongo pulp_database \
   --eval "db.createUser({user:'pulp',pwd:'pulp_password',roles:[{role:'dbOwner', db:'pulp_database'},{ role: 'readWrite', db: 'pulp_database'}]})"

4. In the /etc/opt/rh/rh-mongodb34/mongod.conf file, specify the bind IP:

   bindIp: your_mongodb_server_bind_IP,::1

5. Edit the /etc/opt/rh/rh-mongodb34/mongod.conf file to enable authentication in the security section:

   security:
     authorization: enabled

6. Restart the rh-mongodb34-mongod service:

   # systemctl restart rh-mongodb34-mongod

7. Open port 27017 for MongoDB:

   # firewall-cmd --add-port=27017/tcp
   # firewall-cmd --runtime-to-permanent

8. From Satellite Server, test that you can access the database. If the connection succeeds, the command returns 1.

   # scl enable rh-mongodb34 " mongo --host mongo.example.com \
   -u pulp -p pulp_password --port 27017 --eval 'ping:1' pulp_database"

Procedure

1. To install PostgreSQL, enter the following command:

   # yum install rh-postgresql12-postgresql-server \
   rh-postgresql12-syspaths \
   rh-postgresql12-postgresql-evr

2. To initialize PostgreSQL, enter the following command:

   # postgresql-setup initdb

3. Edit the /var/opt/rh/rh-postgresql12/lib/pgsql/data/postgresql.conf file:

   # vi /var/opt/rh/rh-postgresql12/lib/pgsql/data/postgresql.conf

4. Remove the # and edit to listen to inbound connections:

   listen_addresses = '*'

5. Edit the /var/opt/rh/rh-postgresql12/lib/pgsql/data/pg_hba.conf file:

   # vi /var/opt/rh/rh-postgresql12/lib/pgsql/data/pg_hba.conf

6. Add the following line to the file:

     host  all   all   Satellite_ip/24   md5

7. To start, and enable PostgreSQL service, enter the following commands:

   # systemctl start postgresql
   # systemctl enable postgresql

8. Open the postgresql port on the external PostgreSQL server:

   # firewall-cmd --add-service=postgresql
   # firewall-cmd --runtime-to-permanent

9. Switch to the postgres user and start the PostgreSQL client:

   $ su - postgres -c psql

10. Create three databases and dedicated roles: one for Satellite, one for Candlepin, and one for Pulp:

    CREATE USER "foreman" WITH PASSWORD 'Foreman_Password';
    CREATE USER "candlepin" WITH PASSWORD 'Candlepin_Password';
    CREATE USER "pulp" WITH PASSWORD 'Pulpcore_Password';
    CREATE DATABASE foreman OWNER foreman;
    CREATE DATABASE candlepin OWNER candlepin;
    CREATE DATABASE pulpcore OWNER pulp;

11. Exit the postgres user:

    # \q

12. From Satellite Server, test that you can access the database. If the connection succeeds, the commands return 1.

    # PGPASSWORD='Foreman_Password' psql -h postgres.example.com  -p 5432 -U foreman -d foreman -c "SELECT 1 as ping"
    # PGPASSWORD='Candlepin_Password' psql -h postgres.example.com -p 5432 -U candlepin -d candlepin -c "SELECT 1 as ping"
    # PGPASSWORD='Pulpcore_Password' psql -h postgres.example.com -p 5432 -U pulpcore -d pulpcore -c "SELECT 1 as ping"

Procedure

1. To configure the external databases for Satellite, enter the following command:

   satellite-installer --scenario satellite \
     --foreman-db-host postgres.example.com \
     --foreman-db-password Foreman_Password \
     --foreman-db-database foreman \
     --foreman-db-manage false \
     --katello-candlepin-db-host postgres.example.com \
     --katello-candlepin-db-name candlepin \
     --katello-candlepin-db-password Candlepin_Password \
     --katello-candlepin-manage-db false \
     --foreman-proxy-content-pulpcore-manage-postgresql false \
     --foreman-proxy-content-pulpcore-postgresql-host postgres.example.com \
     --foreman-proxy-content-pulpcore-postgresql-db-name pulpcore \
     --foreman-proxy-content-pulpcore-postgresql-password Pulpcore_Password \
     --katello-pulp-db-username pulp \
     --katello-pulp-db-password pulp_password \
     --katello-pulp-db-seeds mongo.example.com:27017 \
     --katello-pulp-db-name pulp_database

2. Verify the status of the databases:

   • For PostgreSQL, enter the following command:

     # satellite-maintain service status --only postgresql

   • For MongoDB, enter the following command:

     # satellite-maintain service status --only rh-mongodb34-mongod

Procedure

1. On a Red Hat Enterprise Linux Server server, install the ISC DHCP Service and Berkeley Internet Name Domain (BIND) packages:

   # yum install dhcp bind

2. Generate a security token:

   # dnssec-keygen -a HMAC-MD5 -b 512 -n HOST omapi_key

   As a result, a key pair that consists of two files is created in the current directory.

3. Copy the secret hash from the key:

   # cat Komapi_key.+*.private |grep ^Key|cut -d ' ' -f2

4. Edit the dhcpd configuration file for all of the subnets and add the key. The following is an example:

   # cat /etc/dhcp/dhcpd.conf
   default-lease-time 604800;
   max-lease-time 2592000;
   log-facility local7;
   
   subnet 192.168.38.0 netmask 255.255.255.0 {
   	range 192.168.38.10 192.168.38.100;
   	option routers 192.168.38.1;
   	option subnet-mask 255.255.255.0;
   	option domain-search "virtual.lan";
   	option domain-name "virtual.lan";
   	option domain-name-servers 8.8.8.8;
   }
   
   omapi-port 7911;
   key omapi_key {
   	algorithm HMAC-MD5;
   	secret "jNSE5YI3H1A8Oj/tkV4...A2ZOHb6zv315CkNAY7DMYYCj48Umw==";
   };
   omapi-key omapi_key;

   Note that the option routers value is the Satellite or Capsule IP address that you want to use with an external DHCP service.

5. Delete the two key files from the directory that they were created in.

6. On Satellite Server, define each subnet. Do not set DHCP Capsule for the defined Subnet yet.

   To prevent conflicts, set up the lease and reservation ranges separately. For example, if the lease range is 192.168.38.10 to 192.168.38.100, in the Satellite web UI define the reservation range as 192.168.38.101 to 192.168.38.250.

7. Configure the firewall for external access to the DHCP server:

   # firewall-cmd --add-service dhcp \
   && firewall-cmd --runtime-to-permanent

8. On Satellite Server, determine the UID and GID of the foreman user:

   # id -u foreman
   993
   # id -g foreman
   990

9. On the DHCP server, create the foreman user and group with the same IDs as determined in a previous step:

   # groupadd -g 990 foreman
   # useradd -u 993 -g 990 -s /sbin/nologin foreman

10. To ensure that the configuration files are accessible, restore the read and execute flags:

    # chmod o+rx /etc/dhcp/
    # chmod o+r /etc/dhcp/dhcpd.conf
    # chattr +i /etc/dhcp/ /etc/dhcp/dhcpd.conf

11. Start the DHCP service:

    # systemctl start dhcpd

12. Export the DHCP configuration and lease files using NFS:

    # yum install nfs-utils
    # systemctl enable rpcbind nfs-server
    # systemctl start rpcbind nfs-server nfs-lock nfs-idmapd

13. Create directories for the DHCP configuration and lease files that you want to export using NFS:

    # mkdir -p /exports/var/lib/dhcpd /exports/etc/dhcp

14. To create mount points for the created directories, add the following line to the /etc/fstab file:

    /var/lib/dhcpd /exports/var/lib/dhcpd none bind,auto 0 0
    /etc/dhcp /exports/etc/dhcp none bind,auto 0 0

15. Mount the file systems in /etc/fstab:

    # mount -a

16. Ensure the following lines are present in /etc/exports:

    /exports 192.168.38.1(rw,async,no_root_squash,fsid=0,no_subtree_check)
    
    /exports/etc/dhcp 192.168.38.1(ro,async,no_root_squash,no_subtree_check,nohide)
    
    /exports/var/lib/dhcpd 192.168.38.1(ro,async,no_root_squash,no_subtree_check,nohide)

    Note that the IP address that you enter is the Satellite or Capsule IP address that you want to use with an external DHCP service.

17. Reload the NFS server:

    # exportfs -rva

18. Configure the firewall for the DHCP omapi port 7911:

    # firewall-cmd --add-port="7911/tcp" \
    && firewall-cmd --runtime-to-permanent

19. Optional: Configure the firewall for external access to NFS. Clients are configured using NFSv3.

    # firewall-cmd --zone public --add-service mountd \
    && firewall-cmd --zone public --add-service rpc-bind \
    && firewall-cmd --zone public --add-service nfs \
    && firewall-cmd --runtime-to-permanent

Procedure

1. Install the nfs-utils utility:

   # yum install nfs-utils

2. Create the DHCP directories for NFS:

   # mkdir -p /mnt/nfs/etc/dhcp /mnt/nfs/var/lib/dhcpd

3. Change the file owner:

   # chown -R foreman-proxy /mnt/nfs

4. Verify communication with the NFS server and the Remote Procedure Call (RPC) communication paths:

   # showmount -e DHCP_Server_FQDN
   # rpcinfo -p DHCP_Server_FQDN

5. Add the following lines to the /etc/fstab file:

   DHCP_Server_FQDN:/exports/etc/dhcp /mnt/nfs/etc/dhcp nfs
   ro,vers=3,auto,nosharecache,context="system_u:object_r:dhcp_etc_t:s0" 0 0
   
   DHCP_Server_FQDN:/exports/var/lib/dhcpd /mnt/nfs/var/lib/dhcpd nfs
   ro,vers=3,auto,nosharecache,context="system_u:object_r:dhcpd_state_t:s0" 0 0

6. Mount the file systems on /etc/fstab:

   # mount -a

7. To verify that the foreman-proxy user can access the files that are shared over the network, display the DHCP configuration and lease files:

   # su foreman-proxy -s /bin/bash
   bash-4.2$ cat /mnt/nfs/etc/dhcp/dhcpd.conf
   bash-4.2$ cat /mnt/nfs/var/lib/dhcpd/dhcpd.leases
   bash-4.2$ exit

8. Enter the satellite-installer command to make the following persistent changes to the /etc/foreman-proxy/settings.d/dhcp.yml file:

   # satellite-installer --foreman-proxy-dhcp=true \
   --foreman-proxy-dhcp-provider=remote_isc \
   --foreman-proxy-plugin-dhcp-remote-isc-dhcp-config /mnt/nfs/etc/dhcp/dhcpd.conf \
   --foreman-proxy-plugin-dhcp-remote-isc-dhcp-leases /mnt/nfs/var/lib/dhcpd/dhcpd.leases \
   --foreman-proxy-plugin-dhcp-remote-isc-key-name=omapi_key \
   --foreman-proxy-plugin-dhcp-remote-isc-key-secret=jNSE5YI3H1A8Oj/tkV4...A2ZOHb6zv315CkNAY7DMYYCj48Umw== \
   --foreman-proxy-plugin-dhcp-remote-isc-omapi-port=7911 \
   --enable-foreman-proxy-plugin-dhcp-remote-isc \
   --foreman-proxy-dhcp-server=DHCP_Server_FQDN

9. Restart the foreman-proxy service:

   # systemctl restart foreman-proxy

10. Log in to the Satellite Server web UI.
11. Navigate to Infrastructure > Capsules, locate the Satellite Server, and from the list in the Actions column, select Refresh.
12. Associate the DHCP service with the appropriate subnets and domain.

Creating a Kerberos Principal on the IdM Server

1. Obtain a Kerberos ticket for the account obtained from the IdM administrator:

   # kinit idm_user

2. Create a new Kerberos principal for Satellite Server to use to authenticate on the IdM server.

   # ipa service-add satellite.example.com

Installing and Configuring the IdM Client

1. On the base operating system of either the Satellite or Capsule that is managing the DNS service for your deployment, install the ipa-client package:

   # satellite-maintain packages install ipa-client

2. Configure the IdM client by running the installation script and following the on-screen prompts:

   # ipa-client-install

3. Obtain a Kerberos ticket:

   # kinit admin

4. Remove any preexisting keytab:

   # rm /etc/foreman-proxy/dns.keytab

5. Obtain the keytab for this system:

   # ipa-getkeytab -p capsule/satellite.example.com@EXAMPLE.COM \
   -s idm1.example.com -k /etc/foreman-proxy/dns.keytab

   Note

   When adding a keytab to a standby system with the same host name as the original system in service, add the r option to prevent generating new credentials and rendering the credentials on the original system invalid.

6. For the dns.keytab file, set the group and owner to foreman-proxy:

   # chown foreman-proxy:foreman-proxy /etc/foreman-proxy/dns.keytab

7. Optional: To verify that the keytab file is valid, enter the following command:

   # kinit -kt /etc/foreman-proxy/dns.keytab \
   capsule/satellite.example.com@EXAMPLE.COM

Configuring DNS Zones in the IdM web UI

1. Create and configure the zone that you want to manage:

   1. Navigate to Network Services > DNS > DNS Zones.
   2. Select Add and enter the zone name. For example, example.com.
   3. Click Add and Edit.

   4. Click the Settings tab and in the BIND update policy box, add the following to the semi-colon separated list:

      grant capsule/047satellite.example.com@EXAMPLE.COM wildcard * ANY;

   5. Set Dynamic update to True.
   6. Enable Allow PTR sync.
   7. Click Save to save the changes.

2. Create and configure the reverse zone:

   1. Navigate to Network Services > DNS > DNS Zones.
   2. Click Add.
   3. Select Reverse zone IP network and add the network address in CIDR format to enable reverse lookups.
   4. Click Add and Edit.

   5. Click the Settings tab and in the BIND update policy box, add the following to the semi-colon separated list:

      grant capsule\047satellite.example.com@EXAMPLE.COM wildcard * ANY;

   6. Set Dynamic update to True.
   7. Click Save to save the changes.

Configuring the Satellite or Capsule Server that Manages the DNS Service for the Domain

1. Use the satellite-installer command to configure the Satellite or Capsule that manages the DNS Service for the domain:

   • On Satellite, enter the following command:

     satellite-installer --scenario satellite \
     --foreman-proxy-dns=true \
     --foreman-proxy-dns-managed=true \
     --foreman-proxy-dns-provider=nsupdate_gss \
     --foreman-proxy-dns-server="idm1.example.com" \
     --foreman-proxy-dns-tsig-principal="capsule/satellite.example.com@EXAMPLE.COM" \
     --foreman-proxy-dns-tsig-keytab=/etc/foreman-proxy/dns.keytab \
     --foreman-proxy-dns-reverse="55.168.192.in-addr.arpa" \
     --foreman-proxy-dns-zone=example.com \
     --foreman-proxy-dns-ttl=86400

   • On Capsule, enter the following command:

     satellite-installer --scenario capsule \
     --foreman-proxy-dns=true \
     --foreman-proxy-dns-managed=true \
     --foreman-proxy-dns-provider=nsupdate_gss \
     --foreman-proxy-dns-server="idm1.example.com" \
     --foreman-proxy-dns-tsig-principal="capsule/satellite.example.com@EXAMPLE.COM" \
     --foreman-proxy-dns-tsig-keytab=/etc/foreman-proxy/dns.keytab \
     --foreman-proxy-dns-reverse="55.168.192.in-addr.arpa" \
     --foreman-proxy-dns-zone=example.com \
     --foreman-proxy-dns-ttl=86400

2. Restart the Satellite or Capsule’s Proxy Service.

   # systemctl restart foreman-proxy

Updating the Configuration in the Satellite web UI

1. Navigate to Infrastructure > Capsules, locate the Satellite Server, and from the list in the Actions column, select Refresh.

2. Configure the domain:

   1. Navigate to Infrastructure > Domains and select the domain name.
   2. In the Domain tab, ensure DNS Capsule is set to the Capsule where the subnet is connected.

3. Configure the subnet:

   1. Navigate to Infrastructure > Subnets and select the subnet name.
   2. In the Subnet tab, set IPAM to None.
   3. In the Domains tab, select the domain that you want to manage using the IdM server.
   4. In the Capsules tab, ensure Reverse DNS Capsule is set to the Capsule where the subnet is connected.
   5. Click Submit to save the changes.

Enabling External Updates to the DNS Zone in the IdM Server

1. On the IdM Server, add the following to the top of the /etc/named.conf file:

   ########################################################################
   
   include "/etc/rndc.key";
   controls  {
   inet _IdM_Server_IP_Address_ port 953 allow { _Satellite_IP_Address_; } keys { "rndc-key"; };
   };
   ########################################################################

2. Reload the named service to make the changes take effect:

   # systemctl reload named

3. In the IdM web UI, navigate to Network Services > DNS > DNS Zones and click the name of the zone. In the Settings tab, apply the following changes:

   1. Add the following in the BIND update policy box:

      grant "rndc-key" zonesub ANY;

   2. Set Dynamic update to True.
   3. Click Update to save the changes.

4. Copy the /etc/rndc.key file from the IdM server to the base operating system of your Satellite Server. Enter the following command:

   # scp /etc/rndc.key root@satellite.example.com:/etc/rndc.key

5. To set the correct ownership, permissions, and SELinux context for the rndc.key file, enter the following command:

   # restorecon -v /etc/rndc.key
   # chown -v root:named /etc/rndc.key
   # chmod -v 640 /etc/rndc.key

6. Assign the foreman-proxy user to the named group manually. Normally, satellite-installer ensures that the foreman-proxy user belongs to the named UNIX group, however, in this scenario Satellite does not manage users and groups, therefore you need to assign the foreman-proxy user to the named group manually.

   # usermod -a -G named foreman-proxy

7. On Satellite Server, enter the following satellite-installer command to configure Satellite to use the external DNS server:

   # satellite-installer --scenario satellite \
   --foreman-proxy-dns=true \
   --foreman-proxy-dns-managed=false \
   --foreman-proxy-dns-provider=nsupdate \
   --foreman-proxy-dns-server="IdM_Server_IP_Address" \
   --foreman-proxy-keyfile=/etc/rndc.key \
   --foreman-proxy-dns-ttl=86400

Testing External Updates to the DNS Zone in the IdM Server

1. Install the bind-utils utility:

   # yum install bind-utils

2. Ensure that the key in the /etc/rndc.key file on Satellite Server is the same key file that is used on the IdM server:

   key "rndc-key" {
           algorithm hmac-md5;
           secret "secret-key==";
   };

3. On Satellite Server, create a test DNS entry for a host. For example, host test.example.com with an A record of 192.168.25.20 on the IdM server at 192.168.25.1.

   # echo -e "server 192.168.25.1\n \
   update add test.example.com 3600 IN A 192.168.25.20\n \
   send\n" | nsupdate -k /etc/rndc.key

4. On Satellite Server, test the DNS entry:

   # nslookup test.example.com 192.168.25.1
   Server:		192.168.25.1
   Address:	192.168.25.1#53
   
   Name:	test.example.com
   Address: 192.168.25.20

5. To view the entry in the IdM web UI, navigate to Network Services > DNS > DNS Zones. Click the name of the zone and search for the host by name.

6. If resolved successfully, remove the test DNS entry:

   # echo -e "server 192.168.25.1\n \
   update delete test.example.com 3600 IN A 192.168.25.20\n \
   send\n" | nsupdate -k /etc/rndc.key

7. Confirm that the DNS entry was removed:

   # nslookup test.example.com 192.168.25.1

   The above nslookup command fails and returns the SERVFAIL error message if the record was successfully deleted.

Updating the Configuration in the Satellite web UI

1. Navigate to Infrastructure > Capsules.
2. For each Capsule that you want to update, from the Actions list, select Refresh.

3. Configure the domain:

   1. Navigate to Infrastructure > Domains and click the domain name that you want to configure.
   2. In the Domain tab, set DNS Capsule to the Capsule where the subnet is connected.

4. Configure the subnet:

   1. Navigate to Infrastructure > Subnets and select the subnet name.
   2. In the Subnet tab, set IPAM to DHCP or Internal DB.
   3. In the Domains tab, select the domain that you want to manage using Satellite or Capsule.
   4. In the Capsules tab, set Reverse DNS Capsule to the Capsule where the subnet is connected.
   5. Click Submit to save the changes.