Install Node JS https://nodejs.org/en/download/ if you have already node js installed or after installing open node command prompt window by typing node( on windows machine) in start. Type following command to install css purge tool npm install css-purge -g After the tool is installed, Open the folder where node command prompt window is open and … Read more
There is this: http://www.idotpc.com/thestore/pc/viewPrd.asp?idproduct=918 It only supports one SD card, but many motherboards have built-in RAID 1 support. I’ve had some experience with flash drives and ESXi, and mirroring is definitely to be recommended.
There is a really great, albeit quite technical “Best Practices” document that may prove useful when combating your sysadmin. http://www.cisco.com/web/about/security/intelligence/dns-bcp.html If he/she doesn’t recognize the validity of articles written by Cisco, then you might as well stop arguing with the sysadmin – go up a level of management. Many other “Best Practices” document recommend separating … Read more
map exists to simplify operations on lists and for historical reasons (see What’s the point of map in Haskell, when there is fmap?). You might ask why we need a separate map function. Why not just do away with the current list-only map function, and rename fmap to map instead? Well, that’s a good question. … Read more
The solution I use, and can be easily implemented with VPS, is the following: DNS is round-robin’ed (sp?) to 6 different valid IP addresses. I have 3 load balancers with identical configuration and using corosync/pacemaker to distribute the 6 ip adresses evenly (so each machine gets 2 adresses). Each of the load balancers has a … Read more
You need 2 servers and a load balancer. Here’s in steps: Turn all traffic on Server 2 Deploy on Server 1 Test Server 1 Turn all traffic on Server 1 Deploy on Server 2 Test Server 2 Turn traffic on both servers Thing is, even in this case you will still have application restarts and … Read more
First, let’s address the question in the title. Is it possible to have a secondary managed DNS provider to quickly delegate to “Quick” and “delegation” do not belong in the same sentence together when we’re talking about the delegation for the top of the domain. The nameservers operated by the top level domain (TLD) registries … Read more
Don’t worry, RAID isn’t used throughout the business world because of groupthink! The chance of decent RAID controllers failing is far, far lower than the chance of a disk failure. I don’t recall ever seeing a RAID controller fail in real life, while I’ve seen many a disk die, both in the office and datacenter. … Read more
Answers to this may vary. But I actually work in warehousing and logistics environments, and I’ll typically plan new server rooms to have a high capacity central UPS (6kVA or more), usually an online (double-conversion) model. Devices of this tier have UPS management interfaces, so it makes sense to tie those in to SNMP and … Read more
If one of the multiple hard disks in my volume were to go down would I lose all my data or would I just lose the data that was stored on that individual disk? No you will lose data stored on whole LVM Also, if I were to just lose the data on the individual … Read more