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12247
bio website ripple.com
location Oakland, CA
age 44
visits member for 2 years, 11 months
seen 25 mins ago

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


May
21
awarded  Good Answer
May
20
awarded  Nice Answer
May
20
comment How can I find my peak bandwidth usage over a period of time?
@TecBrat Those statistics won't help you. Knowing how much bandwidth you used won't tell you how much you needed. (For example, your backups might spike to a very high value just because there's lots of bandwidth between the backup machine and this machine. But the backup performance might be perfectly adequate with 1/10th the bandwidth.) You need to figure out what you need, not what you're using.
May
20
comment Why drop caches in Linux?
@ivcode Then you should find and fix the problem with that server rather than trying to avoid the conditions that cause it. If my car stalled every time I made a sharp right turn, avoiding sharp right turns is a lousy fix.
May
20
answered Why drop caches in Linux?
May
19
answered How to explain to users the difference between Xeon and i7/Consumer CPU
May
14
answered configure single /32 ip address to FreeBSD server
May
14
comment configure single /32 ip address to FreeBSD server
Are you bridging to the VM or routing to it?
May
14
comment configure single /32 ip address to FreeBSD server
Did they assign you a /32 that is already routed on an Ethernet network with some other netmask? Or are they just routing a /32 to you and the machine already has an IP address? In what sense is that IP address associated with a particular physical Ethernet interface? You need to understand how this is supposed to work to configure it correctly. There are multiple possibilities. (A /32 primary makes no sense for Ethernet. What other machine could you ever talk to? No other IP would be on that network.)
May
13
comment The permission to run 'ls' is denied
You're probably going to have to boot from rescue media and fix enough permission to make the system manageable.
May
11
comment Why does the size of a backup differ from Windows Server Backup's snap-in and what's actually on disk?
The only 100% guaranteed way to tell what you have in a backup is to restore it.
May
11
comment Why does the size of a backup differ from Windows Server Backup's snap-in and what's actually on disk?
You probably have a lot of small files. A file with only 3 bytes of data in it still takes up an entire allocation unit in the filesystem ... but not in the backup.
May
11
comment OpenSSL returns different SSL certificate to that shown by Chrome
@Geoffrey I agree. It's the command in the OP that doesn't support SNI.
May
11
comment OpenSSL returns different SSL certificate to that shown by Chrome
I didn't say s_client didn't support CLI. I said the s_client command (in the OP) doesn't.
May
11
answered OpenSSL returns different SSL certificate to that shown by Chrome
May
10
comment CNAME domain nslookup refused
You would have to create a local zone for ir that made domain1.ir a CNAME for domain1.com. But that would cut off access to all other .ir domains. Most likely, you are trying to do something that isn't sensible. See this question for more info. Without NS records, how would nameservers know where to go to get the CNAME record? But with a CNAME record, how can you also have a NS records? (Think about what CNAME means.)
May
10
comment CNAME domain nslookup refused
Sorry, I don't understand your question. You pasted an example zone filled with the necessary SOA and NS records.
May
10
answered CNAME domain nslookup refused
Apr
25
comment How to autoban IPs that request URLs with a .php extension?
This is very bad. This makes it easy for anyone to get anyone else banned from your site just by directing them to retrieve a link. An embedded image would do it.
Apr
24
answered High iowait despite small amount of write/read