22,398 reputation
12451
bio website ripplelabs.com
location Oakland, California
age 45
visits member for 3 years, 7 months
seen 1 hour ago

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


Apr
3
comment PTR Record for host in VLSM subnet
You would look in the reverse zone for CNAME records. If there are none, ask the person who manages that block to put them in for you.
Apr
3
comment PTR Record for host in VLSM subnet
You have to ask the person who transferred control of that block to you. There's more than one way to do it. See RFC 2317 for the basic method. They use a CNAME to a name inside a zone they delegate to you.
Apr
3
comment Should You Continue Polling Socket For Readiness After An EAGAIN or EWOULDBLOCK Error?
Okay, so what operation returns EWOULDBLOCK? I think what you're missing is this: If a read operations returns EWOULDBLOCK, you don't want to try to read again until you get another epoll read hit.
Apr
3
comment Should You Continue Polling Socket For Readiness After An EAGAIN or EWOULDBLOCK Error?
Can you clarify exactly what's happening? Are you getting an epoll read hit or write hit? What operation is returning EAGAIN/EWOULDBLOCK?
Apr
3
comment How to bridge multiple wireless access points (and internet entry points) into one network
You have double NAT. The "modems" are actually routers, and the "bridge" is actually a router too. It's time to totally rethink the layout so that you're using two modems and one router. You have three LANs, for some reason.
Apr
2
comment VMware - Broadcom 1000Gbps NIC does not link at 100Mbps to a Cisco switch port
What NIC does the server have?
Apr
2
comment Is it possible to cross-connect two AUI ports without transceivers?
You can slide the switch to the crossed position and connect an end node to the ninth port. I think.
Apr
2
comment How can I tell what updates will be made via yum update?
You can also use yum shell, which will even let you tweak what will be done before it's done. From the shell, update will create an update transaction. Then you can use transaction commands like ts list to view it, ts solve to include any dependencies, and finally ts run to execute it.
Apr
2
revised Is it possible to cross-connect two AUI ports without transceivers?
added 5 characters in body
Apr
2
answered Is it possible to cross-connect two AUI ports without transceivers?
Apr
1
comment High load on X3220 Quad Core Linux Apache server
If you only have a single server that runs both MySQL and the web servers, there's no reason the MySQL port needs to be accessible from the Internet.
Apr
1
comment DDoS false IP attack
Figure out what it is about the attack that's allow that traffic rate to cause high CPU usage and fix it.
Mar
31
comment How to fix customer display pole that displays garbage?
Are you sure the serial port is also set to 9600,O,8,1? Odd parity is unusual. Are you sure the pole is supposed to be set to 9600,O,8,1? Again, odd parity is very unusual and a parity mismatch could cause this kind of problem.
Mar
30
comment Can an internet connection be more robust when connecting through a VPN?
The classic example where it would help is if the stream source has two Internet connections, one of which is overloaded. If your path takes the bad connection, a VPN to an intermediary whose path from the stream source takes the good connection can make a big difference. Of course, in the more likely case that the problem is your link, and you only have one, it won't help.
Mar
30
revised SSL Certificate by GeoTrust not working
deleted 52 characters in body
Mar
30
comment Can an internet connection be more robust when connecting through a VPN?
A VPN to a network with a better connection to the streaming source network could help.
Mar
30
answered Can a switch consume bandwidth?
Mar
30
answered SSL Certificate by GeoTrust not working
Mar
29
comment LACP Total Speed
It depends on the exact LACP algorithm each end uses. Layer 3 devices typically use IP addresses in their hash rather than, or in addition to, MAC addreses. (For precisely this reason.) For example, Linux's LACP driver uses the last two octets of the source and destination IP addresses in addition to the MAC addresses.
Mar
28
comment Laptop being assigned IPv4 address out of router's DHCP range
The problem isn't the laptop, it's the rogue DHCP server.