Blog @ Oneiric Systems, LLC

Oneiric expands to New York

April 3rd, 2012 | Blog | Oneiric Systems | No comments

We have expanded our datacenter footprint to now include New York. With our presence in New York, we have the ability to better service our east coast based customers and connect to Europe with lower latency.

We provide IP service out of our New York POP, located in the 111 8th datacenter with Equinix. Services include metro ethernet, point-to-point service as well as global connectivity to our Los Angeles and European customers.

CloudMac – OS X Server DNS TTL Modification

November 28th, 2011 | Blog,Technology | davidgreen | No comments

Posted by CloudMac.net

For some reasons, you may want to modify the TTL (Time to Live) of a DNS Server.

The default TTL is 10800 seconds (3 hours). To modify the TTL, edit the following file on your OS X DNS Server and replace $TTL 10800 with the $TTL value you desire. Please note using a TTL value of 0 (zero) is not supported by some systems and is not advised.

The DNS cache on the client systems may need to be flushed to honor the new TTL. This is done on OS X by using the “dscacheutil -flush” command.

vi /var/named/zones/db.cloudmac.net.zone.apple

Here is an example config file:

dns1:~ root# cat /var/named/zones/db.cloudmac.net.zone.apple
 ;GUID=D521C96D-AA85-4438-A1BC-8B1D7987DCD0
 ;selfResolvingHostname=0

$TTL 300
cloudmac.net. IN SOA dns.cloudmac.net. netopps.cloudmac.net. (
     2011112804    ;Serial
     86400         ;Refresh
     3600          ;Retry
     604800        ;Expire
     345600        ;Negative caching TTL
 ) 

cloudmac.net. IN  NS dns.cloudmac.net.
dns1 IN  A 10.22.100.30
mail IN  A 10.22.100.31
cloudmac.net. IN  MX 0 mail.cloudmac.net.
dns1:~ root#

Run the dig command to confirm the TTL information reflects what you entered:

dns1:~ root# dig mail.cloudmac.net @10.22.100.30

; <<>> DiG 9.6-ESV-R4-P3 <<>> mail.cloudmac.net @10.22.100.30
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 983
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;mail.cloudmac.net.        IN    A

;; ANSWER SECTION:
mail.cloudmac.net.    300    IN    A    10.22.100.31

;; AUTHORITY SECTION:
cloudmac.net.        300    IN    NS    dns1.cloudmac.net.

;; ADDITIONAL SECTION:
dns1.cloudmac.net.    300    IN    A    10.22.100.30

;; Query time: 1 msec
;; SERVER: 10.22.100.30#53(10.22.100.30)
;; WHEN: Mon Nov 28 16:47:32 2011
;; MSG SIZE  rcvd: 85

dns1:~ root#

More info is available by following the links below:

Time to live (TTL) – Wikipedia.com

DNS Round Robin – Wikipedia.com

dscacheutil – developer.apple.com

Hitachi Data Systems Announces Acquisition of BlueArc

September 7th, 2011 | Technology | davidgreen | No comments

Hitachi Data Systems Corporation (HDS), a wholly owned subsidiary of Hitachi, Ltd. (NYSE: HIT / TSE: 6501), today announced a significant milestone in its strategy to give customers seamless access to all data, content and information with the acquisition of BlueArc Corporation, a leader in scalable, high performance network storage. Building upon a successful 5 year OEM partnership, Hitachi Data Systems and BlueArc will give customers the unmatched combination of Hitachi enterprise-class quality, reliability and support with innovative, highly scalable, high performance BlueArc network attached storage (NAS).

http://bluearc.com/storage-news/press-releases/110907-Hitachi-Data-Systems-Announces-Acquisition-of-BlueArc.shtml