RHCE(RHEL7) Lab Step 4

2/28/2015

RHEL7: Set up a local repository for a lab. ­ CertDepot

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RHEL7: Set up a local repository for a lab. Last updated on November 30, 2014 (1,489 views) — No Comments ↓

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To be able to quickly deploy new VMs, you need a local repository.

MAR

13 Fri

Install the Apache package: # yum group install ‐y "Basic Web Server" Create the directories for the CentOS distribution and the updates:

6:00 pm ­ View Details  vanVugt: Free online class on SELinux issues 6:00 pm ­ View Details  vanVugt: Free online class on NFS­ Kerberos

MAR

6:00 pm ­ 20 View Details  Fri vanVugt: # cd /var/www/html Free # mkdir ‐p conf repo/CentOS/7 online class on # cd repo/CentOS/7 ACLs # mkdir ‐p centosplus/x86_64 extras/x86_64 os/x86_64 updates/x86_64

In the software requirements, it was specified to download the DVD version or the Everything version of the CentOS 7 http://www.certdepot.net/rhel7­set­local­repository­lab/

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2/28/2015

RHEL7: Set up a local repository for a lab. ­ CertDepot

distribution. It is now time to use it. Mount the previously downloaded iso and copy it into the right place:

APR

3 Fri

6:00 pm ­ View Details  vanVugt: Free online class on Apache

# mount ‐o loop CentOS‐7.0‐1406‐x86_64‐DVD.iso /mnt # cd /mnt # tar cvf ‐ . | (cd /var/www/html/repo/CentOS/7/os/x86_64; tar xvf ‐) APR 6:00 pm ­ View # cd /; umount /mnt Details 

10 Fri

In order to prepare the centosplus, extras and updates repositories, install the createrepo package:

APR

15 # yum install createrepo Prepare the centosplus, extras and updates repositories:

Wed

vanVugt: Free online class on troubleshooting 6:00 pm ­ View Details  vanVugt: Free online class on iSCSI

# cd /var/www/html/repo/CentOS/7/centosplus/x86_64; createrepo . APR 6:00 pm ­ # cd ../../extras/x86_64; createrepo . 24 View # cd ../../updates/x86_64; createrepo . Details  Fri vanVugt: Free online Go into the directory where the repository configuration is: class on remote logins # cd /etc/yum.repos.d Create the local.repo file and paste the following lines:

RHCSA6: Task of the day

[os] name=master ‐ Base baseurl=http://192.168.1.5/repo/CentOS/$releasever/os/$basearch/ gpgcheck=1 Allowed time: 10 gpgkey=file:///etc/pki/rpm‐gpg/RPM‐GPG‐KEY‐CentOS‐7 minutes.  Set up a default [updates] configuration HTTP name=master ‐ Updates server with SELinux in baseurl=http://192.168.1.5/repo/CentOS/$releasever/updates/$basearch/ Enforcing mode and gpgcheck=1 active iptables. gpgkey=file:///etc/pki/rpm‐gpg/RPM‐GPG‐KEY‐CentOS‐7 http://www.certdepot.net/rhel7­set­local­repository­lab/

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2/28/2015

RHEL7: Set up a local repository for a lab. ­ CertDepot

[extras] name=master ‐ Extras baseurl=http://192.168.1.5/repo/CentOS/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm‐gpg/RPM‐GPG‐KEY‐CentOS‐7 Allowed time: 15 minutes.  [centosplus] Set up a httpd virtual name=master ‐ CentosPlus server called "dummy" baseurl=http://192.168.1.5/repo/CentOS/$releasever/centosplus/$basearch/ with DocumentRoot gpgcheck=1 assigned to /opt. gpgkey=file:///etc/pki/rpm‐gpg/RPM‐GPG‐KEY‐CentOS‐7

RHCE6: Task of the day

Note: A yum update command will update the system with what the local Apache server’s got. Copy the local.repo file into the /var/www/html/conf directory to make it available to the new VMs: # cp local.repo /var/www/html/conf Assign the SELinux attributes to the files: # restorecon ‐R /var/www/html

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Activate the Apache server at boot and start it:

# systemctl enable httpd && systemctl start httpd

Add the Apache service to the firewall configuration:

# firewall‐cmd ‐‐permanent ‐‐add‐service=http success Reload the firewall configuration: # firewall‐cmd ‐‐reload http://www.certdepot.net/rhel7­set­local­repository­lab/

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2/28/2015

RHEL7: Set up a local repository for a lab. ­ CertDepot

success Clean up the yum configuration:

# yum clean all Check the yum configuration:

# yum repolist all Loaded plugins: fastestmirror, langpacks

Red Hat Enterprise Linux systems as virtual guests. RHEL7 RHCSA Exam objectives RHEL7: Update the kernel package appropriately to ensure a

bootable system. centosplus                                            | 2.9 kB     00:00 RHEL7: Locate, extras                                                | 2.9 kB     00:00 read, and use os                                                    | 3.6 kB     00:00 system updates                                               | 2.9 kB     00:00 documentation (1/2): os/7/x86_64/group_gz                             | 157 kB   00:00 including man, (2/2): os/7/x86_64/primary_db                           | 4.9 MB   00:00 info, and files in Loading mirror speeds from cached hostfile /usr/share/doc. repo id                        repo name                       status RHEL7: How to centosplus/7/x86_64            master ‐ CentosPlus             enabled:     0 deal with HTTPD extras/7/x86_64                master ‐ Extras                 enabled:     0 SELinux policy. os/7/x86_64                    master ‐ Base                   enabled: 8,465 SELINUX: Use updates/7/x86_64               master ‐ Updates                enabled:     0 boolean settings repolist: 8,465 to modify system SELinux settings. SELINUX: Finally, you need an extra step to regularly update your lab local repository. Create a Bash script called /root/rsync.sh and paste the following lines (where mirror.ovh.net/ftp.centos.org/7/ is the url of a close CentOS repository): #!/bin/bash

Diagnose and address routine SELinux policy violations. RHEL7: How to install a Nginx & PHP service.

/usr/bin/rsync ‐av ‐‐delete ‐‐delete‐excluded ‐‐exclude "local" ‐‐exclude "isos" ‐‐exclu

Give the execution permissions: # chmod u+x /root/rsync.sh

Recent Comments mfsid on RHEL6

Put this script into the root crontab (# crontab ­e): http://www.certdepot.net/rhel7­set­local­repository­lab/

LFCS Exam 4/7

2/28/2015

RHEL7: Set up a local repository for a lab. ­ CertDepot

00 02 * * * /root/rsync.sh Note: The first synchronization will last a while but, after, it will be quick. After synchronization, you will get this kind of result: # yum repolist all Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile

objectives CertDepot on Final call for RHCSA 6 & RHCE 6 exams. konrad on Final call for RHCSA 6 & RHCE 6 exams. CertDepot on

Website news. CertDepot on repo id                          repo name                        status RHEL7 RHCSA centosplus/7/x86_64              master ‐ CentosPlus              enabled:    70 Exam objectives extras/7/x86_64                  master ‐ Extras                  enabled:    44 os/7/x86_64                      master ‐ Base                    enabled: 8,465 updates/7/x86_64                 master ‐ Updates                 enabled:   866 repolist: 9,445

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