21,471 reputation
12449
bio website ripple.com
location Oakland, CA
age 44
visits member for 3 years, 2 months
seen 1 hour ago

I am Chief Cryptographer at Ripple Labs and one of the architects of the Ripple payment system.


Dec
11
comment How does hostname relate to IP address on a server with multiple public IPs?
Why are you trying to separate the different names to different IPs? You've started your question with a proposed solution without telling us what problem you're trying to solve. You won't get good answers that way.
Dec
9
comment Bandwidth efficient software RAID
It depends completely on the type of data you're storing and the usage patterns.
Dec
9
answered Number of logical processors per VM?
Dec
9
answered Bandwidth efficient software RAID
Dec
7
comment Is it possible for a TCP connection to remain open when the client has disconnected?
Most likely, keepalives are not enabled. Some piece of code has to enable them. It sounds like the application is just plain broken if it doesn't even enable keepalives and has no timeout/reap mechanism. What protocol are we talking about? (HTTP? SMTP? FTP?)
Dec
7
comment Is it possible for a TCP connection to remain open when the client has disconnected?
@Rilindo: In practice, and in this particular case, you have an application making calls to the TCP stack. The protocol on top of TCP (HTTP, POP, or whatever) typically specifies how to do this, because the designers of those protocols knew that TCP couldn't do this itself.
Dec
7
revised Is it possible for a TCP connection to remain open when the client has disconnected?
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Dec
7
answered Is it possible for a TCP connection to remain open when the client has disconnected?
Dec
7
comment sql server use of memory
The clue that you need more memory is excessive disk I/O. You can't really tell from memory utilization because that will only tell you if it is using the memory, not whether it needs to use the memory.
Dec
7
comment Does TIME_WAIT affect dynamic ports?
Are these inbound connections or outbound connections?
Dec
6
comment When does a browser send HTTP payload separately from the HTTP request?
It's random and unpredictable. Because nothing is supposed to care, no special effort is made to make it one way or the other way. (It can depend on how the client is coded, whether the client gets to keep the CPU while it's processing the entire request, whether a proxy is used, the MTU of the smallest link on the path, whether active bandwidth management devices are being used, and who knows what else.) It's not that the software "sucks", it's simply not an HTTP server, and so it cannot be accessed with an HTTP client.
Dec
6
revised When does a browser send HTTP payload separately from the HTTP request?
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Dec
6
revised When does a browser send HTTP payload separately from the HTTP request?
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Dec
6
answered When does a browser send HTTP payload separately from the HTTP request?
Dec
5
answered If I am using SSH for a SOCKS proxy, do DNS connections go through it?
Dec
5
comment In Wireless Networks, What is IV?
It's sent in the clear over the wire, but it does encrypt because it is part of the key. The point is to encrypt each packet with a different key.
Dec
5
answered In Wireless Networks, What is IV?
Dec
2
comment Ways to estimate which network destination result is shorter/faster network path?
If you definition of "faster" is the time it takes to reply to a custom database request, then time that. That's how you'll know which one is faster. (If you have cooperation with the other end, ask them how to tell. Perhaps they'll even offer you a specific query for that purpose.)
Dec
2
answered How do I prevent accidental rm -rf /*?
Dec
2
answered Can't get past “HELO” command with my Exchange Server despite setting Receive Connector to trust it?