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Complete Oracle VM Upgrade from 3.3.3 to 3.4.2

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Oracle VM Upgrade This document covers the steps to upgrade OVM environment from 3.3.3 to 3.4.2 (upgrade in one step without any incremental upgrades). This includes OVM manager server OS upgrade as well. Before proceeding to follow this document, check the compatibility of upgrade from current version to latest in Oracle documentation since it keeps on changing for each new version. Upgrade Overview: From a high level, the steps to upgrade Oracle VM are as follows: 1. Download required ISO from Oracle Edelivery 2. Backup OVM manager (OVMM)  and Oracle VM servers (OVS) 3. Upgrade OVMM to latest with runinstaller script 4. Reinstall OS on OVMM to latest version from ISO 5. Reinstall OVM manager with UUID and runinstaller script 6. Upgrade OVS via OVMM GUI one by one. 1. Download all necessary ISO from Edelivery Download following ISO from Edelivery at https://edelivery.oracle.com/ a) Oracle VM Server 3.4.2 for x86 ISO b) ...

Active Directory SSO login in Linux

To Enable Active Directory SSO login in Linux server, configure mod_auth_ntlm_winbind module with apache and PHP. It is possible in Linux: http://adldap.sourceforge.net/faq.php Setup: RHEL, CentOS 6 and 7 server Active Directory admin user logins and authenticated browser Step 1. Install ntp and synchronize clocks service ntpd start #and keep in sync chkconfig ntpd on #after reboot as well Step 2. Update system and install required software # yum update # yum install mc vim httpd php svn httpd-devel make autoconf gcc ntp krb5-workstation samba-common authconfig samba-winbind - In centos install additional package required : samba-winbind-clients Step 3. Connect to active directory # authconfig --enableshadow --enablemd5 --passalgo=md5 --krb5kdc=DC.domain.com --krb5realm=domain.com --smbservers=DC.domain.com --smbworkgroup=domain --enablewinbind --enablewinbindauth --smbsecurity=ads --smbrealm=domain.com --smbidmapuid="16777216-...