In order to upgrade an existing ESX/ESXi server to ESXi 4.1 server you need to either need to be at the local console or have remote access over an appropriate lights-out management card. For our purposes, we'll assume the latter is the case. To properly upgrade the system, you need to fulfill the prerequisite steps as well as perform the actual migration steps...

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There have been a couple instances where customers have complained about poor performance or high Memory utilization, after looking at the vSphere console we discovered Memory limits or CAPs limiting a servers Memory. Here are the steps you can take to view if your Client's server has a memory limit 1. Login to vSphere in any data center including Cloud (note Cloud is...

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In order to perform enable SNMP from ESXi you need to ensure you load the VMware CLI tools onto the vSphere/vCenter box so that you can execute the commands listed below. Please note you can download these bunaries from VMware directly at the following URL: http://www.vmware.com You will need to register if you haven't used their site before to get at the download...

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By default there is no SSH capabilities enabled by ESXi server as the console is locked down by default. However, VMware conveniently allowed a limited backdoor that can be enabled via the Remote CLI or on the console of the box if you have access. You basically once you have logged into the service console enable the following options: Enable Local Tech Support...

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1.) Create a local user on the server. In our example we will use user: mand1. 2.) Make the user a member of the local administrators group on the server. 3.) Login in with this user and customize the profile. (for example the start menu). 4.) Logoff and login again with an administrator account. 5.) Create a share on your file server. For...

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DNS configuration For DNS this assumes that an Active Directory forest is installed and configured to support this installation. As such you will need to ensure that the DNS suffix is referenced accordingly for internal names versus what may be used externally.If you are stuck into a DNS split brain configuration, you MUST ensure the records match accordingly for the access levels you...

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The following excerpt describes how to perform a SSL certificate conversion if you have a given format and need to move it over to another format. For example if you want to go from IIS to Apache or from P7B to .pem. The original link appears below if you wanted more information on the subject (as well as to give credit to the...

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SSL and Redirects In OOD, you have two options for SSL: install the SSL Cert into the web server and configure appropriately or off-load the SSL encryption to the load balancers. This page presents methods to accomplish both. SSL in Web Server In this scenario, the SSL Cert is installed on the web server and the web server has full SSL capabilities (server-side...

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Open this URL :https://www.secure128.com/signin.aspx Under Returning Customers, fill out Email and Password from above doc. In My Portal section, under Functions, click Order History. Under section Order Console Filters, check box called Domain, type your Domain name, click Search. Under Console Details section, click red button Details. Scroll down to middle of page for section Certificate Signing Request. Copy the entire contents of...

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These instructions were developed using IIS 6.0 on Windows 2003 Server SP1 and OpenSSL 0.9.5a. Export your SSL Certificate from IIS: Open 'Internet Information Services' from 'Administrative Tools' on your Start menu. Right-click on your website and select 'Properties'. Choose the 'Directory Security' tab and click on 'View Certificate'. Choose the 'Details' tab, and click 'Copy To File'. Click 'Next' and choose 'Yes,...

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Save the CA signed certificate to a text file with a .cer extension. For example: signed-certificate.cer. Include the Begin Certificate and End Certificate lines when you save the file. For example: ---BEGIN CERTIFICATE--- MIIFPDCCBCSgAwIBAgIQdc/+38qo3f3bZwozWEiUVjANBgkqhkiG9w0BAQUFADCB vDELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL DTE0MDcwNzAwMDAwMFoXDTE1MDcwODIzNTk1OVowejAYELMAkGA1UEBhMCVVMxEzAR ---END CERTIFICATE--- Double-click on the new file that you created and a Certificate dialog box opens Click on the Certification Path tab. Look at the tree-like structure...

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What is DKIM? DomainKeys Identified Mail (DKIM) is a method for associating a domain name to an email message, thereby allowing a person, role, or organization to claim some responsibility for the message. The association is set up by means of a digital signature which can be validated by recipients. Responsibility is claimed by a signer by adding a DKIM-Signature: field to the...

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When submitting mail by using sendmail as a mail submission program, sendmail copies all messages to "/var/spool/clientmqueue" first. Later, another sendmail process, the sendmail mail transfer agent (MTA) copies the messages from /var/spool/clientmqueue to /var/spool/mqueue and sends them to their destination. /var/spool/clientmqueue is thus the holding area used by the MSP (Mail Submission Protocol) sendmail instance before it injects the messages into the...

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When sending emails through sendmail - whether it's a standalone server, or a relay server, the system sometimes wont expose itself to the outside world as being from a valid FQDN. Actually, the default for sendmail is to expose itself based upon best guess, which typically is by hostname. Because hostnames are essential to our environment (the ood.ops name) - I strongly suggest...

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When sending emails through sendmail - whether it's a standalone server, or a relay server, the system sometimes wont expose itself to the outside world as being from a valid FQDN. Actually, the default for sendmail is to expose itself based upon best guess, which typically is by hostname. Because hostnames are essential to our environment (the ood.ops name) - I strongly suggest...

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Installing and running sendmail Sendmail distribution consists of 3 rpm packages: sendmail - Truly necessary to send and receive email sendmail-cf -- Includes configuration macros and other  files that can help reconfigure sendmail installation sendmail-doc -- contains documentation file  Installing using yum yum install sendmail yum install sendmail-cf Installing using rpm rpm --Uhv sendmail* Starting sendmail  # /etc/init.d/sendmail start Basic Sendmail Configuration Most...

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