Scenario: I wanted to transfer a /data folder from one server to another on Centos 6. Source is 10.0.43.2. Destination is 10.0.43.1 First of all we need to check rsync and xinetd are installed and working on the DESTINATION (receiving) server. To find out if the packages are installed type this: yum list installed Note: Read More…
Month: January 2013
Add a New Disk to Centos 6 with a Volume Group
Scenario: I wanted to add a new disk to my Centos 6 installation with its own LVM (Logical Volume Manager). The new disk is 25G and is listed as/dev/sdb. It will mounted on the /data directory. As always please make sure you have everything backed up before attempting this. Use fdisk -l to get the Read More…
Error in fstab. Server doesnt boot
We’ve all probably done it at some point (or maybe this is your first time and you are frantically searching the web to find a fix). Ok, so i made a typo in the fstab when mounting a new drive. The server doesn’t reload properly and you’ve had to run to the server room in Read More…
Splitting IP addresses when using DIRECT external network connection in vCloud Director 5.1 ?
I wanted to split a /24 subnet into 4 IP chunks per orgVDC. Using the new sub-allocation feature in vShield Edge you can configure this so one OrgVDC can only use a specific allocated range. However, what if you have an orgVDC that has a direct internet connection (eg connecting to the Internet directly without using Read More…
Determining your gateway when using DHCP
Scenario: I have a Centos 6.x VM which gets an IP address via DHCP. I could not get any external access so I wanted to start troubleshooting. The first step was making sure I had the correct gateway and could ping it. route -n This should display The IP address highlighted in red is the Read More…
Creating a site-to-site VPN from Sonicwall to vShield Edge in vCloud Director
I have an organisation in vCloud Director (called Jordansphere). I wanted to connect a VPN from this organisation to a remote site . The remote site uses a Sonicwall. In this setup I have used FQDN as the LocalID and PeerID and 3DES with a shared secret. Here are the steps. Create VPN Read More…