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What are the disadvantages of using persistent connection in PDO
... other PHP database interface that does persistent connections: if your script terminates unexpectedly in the middle of database operations, the next request that gets the left over connection will pick up where the dead script left off. The connection is held open at the process manager level (Apa...
Set up DNS based URL forwarding in Amazon Route53 [closed]
...
Open the settings for "Edit Redirection Rules".
Paste the following XML snippet in it's entirety.
<RoutingRules>
<RoutingRule>
<Redirect>
<Protocol>https</Protocol>
<HostName>myaccount.signin.aws.amazon.com</HostName>
<ReplaceKey...
Alternative to google finance api [closed]
... csv...can you grab data as JSON instead?
– bouncingHippo
Nov 19 '12 at 16:39
3
Worth noting that...
How do BitTorrent magnet links work?
... maps torrents (identified by infohashes) to lists of peers (identified by IP address and ports) who are participating in a swarm for that torrent (uploading/downloading data or metadata).
The first time a client joins the DHT network it generates a random 160-bit ID from the same space as infohash...
What does Docker add to lxc-tools (the userspace LXC tools)?
...rface, design philosophy and documentation. By contrast, the lxc helper scripts focus on containers as lightweight machines - basically servers that boot faster and need less ram. We think there's more to containers than just that.
Automatic build. Docker includes a tool for developers to automatica...
MPICH vs OpenMPI
...of both MPICH and Open-MPI are working on shared-memory, Ethernet (via TCP/IP), Mellanox InfiniBand, Intel Omni Path, and likely other networks. Open-MPI also supports both of these networks and others natively (i.e. without OFI in the middle).
In the past, a common complaint about MPICH is that i...
What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
...ready a JSON library. Again, as with most wheel-reinventing protocol description systems, Avro is also not standardized.
Personally, despite my love/hate relationship with it, I'd probably use ASN.1 for most RPC and message transmission purposes, although it doesn't really have an RPC stack (you'd...
Do login forms need tokens against CSRF attacks?
... for privacy violations like that. Perhaps, but to quote the section in Wikipedia's CSRF article:
Login CSRF makes various novel attacks possible; for instance, an
attacker can later log in to the site with his legitimate credentials
and view private information like activity history that ha...
Differences between socket.io and websockets
... browser:
WebSocket Client
WebSocket client example using vanilla JavaScript:
var l = document.getElementById('l');
var log = function (m) {
var i = document.createElement('li');
i.innerText = new Date().toISOString()+' '+m;
l.appendChild(i);
}
log('opening websocket connection');
var...
How should I choose an authentication library for CodeIgniter? [closed]
...)
Uses potentially unsafe md5 hashing
Failed login attempts only stored by IP, not by username - unsafe!
Autologin key not hashed in the database - practically as unsafe as storing passwords in cleartext!
Role system is a complete mess: is_admin function with hard-coded role names, is_role a complet...