Nick O'Neil's questions

Greetings,

I have a list of 2 /24s worth of IP addresses in seperate text files. What I am interested in doing is finding a way to resolve the hosts of these IP addresses and filter out to display only the top level domain.

for example; 192.168.1.1 resolves to www.mywebsite.com

using shell scripting would it then be possible to filter out and append the result to a new file displaying 192.168.1.1 resolves to mywebsite.com

the reason for this is internally in the given /24s I am working with I have virtual machines such as web1-10 and mail-10 and i'd like to filter these matches to know only the domains I am running on my netblocks.

Thank you very much Team, I appreciate any assistance to help find a solution with this.

Best, Nick

Greetings Team,

I’d like to share a brainstorm with the experts about how to produce a 100% uptime and redundant VMware infrastructure.

What I am currently working with is 2 VMware controller servers and they are presented with 2 iSCSI targets which are actually Linux DRBD configured systems to act as SANS with real time replication of the data between the targets.

If a controller fails, things are fine, if a iSCSI target fails yet again ok, but what if… in the event of a disaster both iSCSI targets failed, something went terribly wrong.

Now all together I am not against the idea of totally ditching DRBD for a specific instance where 100% uptime really means what it serves but given the fact it’s working well, what would we recommend as a tertiary form of redundancy to provide an instant or if not instant fast as possible turn around recovery mode for the iSCSI targets to get the virtual machines back online.

I look forward to hearing responses, have a great day all.

Best, Nick