Amazon is down. Outages happen even at the top sites.

Quoted: Http/1.1 Service Unavailable

I've been waiting for something like this.

Quoted: Amazon DevPay removes the pain of having to create or manage your own order pipeline or billing system. It allows you to quickly sign up customers, automatically meter their usage of AWS services, have Amazon bill them based on pricing you set, and collect payments.

Quoted: However, it is also an extremely simple piece of software: all of the logic is client-side, there is no security model, failover, backup mechanisms, or persistence (albeit the last one is in the roadmap). But that hasn't stopped the developers from deploying it in all kinds of environments, and here are a few best practices suggested by Brian:

This is a very handy tool, especially in the datacenter. I set it up to give me quick access to all our frontends and database machines. All the active connections are accessible via a tabbed interface.

Quoted: Windows only Connect to and manage multiple remote desktop connections mdash supporting RDP VNC SSH and Telnet protocols mdash in a friendly tabbed interface with free open source

Looks very cool -- potentially better than the 'for pay' product (ServersCheck) that we are using now.

Quoted: ZABBIX is an enterprise-class open source distributed monitoring solution for networks and applications.

Not rocket science, but helpful nonetheless. We used to run into minor problems until we implemented some of the techniques (primarily the session based approach) below.

Quoted: MySQL Replication is asynchronous which causes problems if you would like to use MySQL Slave as it can contain stale data.

Quoted: Each time the DNS server "rotates" the order of the IP addresses in its responses, implementing the DNS "round-robin" load balancing (client applications usually use the first address in the DNS server response, and use other addresses only if an attempt to establish a TCP/IP connection with the first address fails).

Good list of all the datacenter jargon.

Quoted: Amazon used the following principles of distributed system design to meet S3 requirements: * Decentralization: Use fully decentralized techniques to remove scaling bottlenecks and single ...

Quoted: In multicast mode, a single IP address can be used to represent multiple MAC addresses. Most switches and routers are multicast compatible, simply requiring each ...