I know, cosmic rays sound so much cooler, but it's far more likely he has some crappy memory and/or his memory refresh timings are too high.
DRAM memory cells have to be refreshed pretty often (anywhere from 7.8usec-12usec), otherwise they become unreliable. If his BIOS has the memory timings set to something obscurely long, it may be there are specific rows/cells on his DRAM modules that are too weak to read after bleeding off a bit of charge. Changing the refresh timing would likely improve the situation, causing the memory to refresh it's state more often.
I'll cut you some slack: 1,2,3 and 5 are certainly valid points for why virtualization/hypervisors. 4 is completely non-sense. Virtual hosting or aliased IP's is far more manageable than one VM per site. The only exception might be if you need customer isolation, but even that can be accomplished without virtualization.
My main value out of hypervisors is the detachment from hardware dependencies. If I can upgrade server hardware without affecting my "servers", by effectively just reallocating or migrating a VM to another host, my job as an admin is remarkably easier. Additionally, much of the HA and resource optimization (memory dedupe and such) abilities of hypervisors nowadays make it significantly more effective to run more apps with less hardware, while still being able to provide redundancy and availability.
I don't think many security-minded folks would enable PermitRootLogin for sshd without-password on a public system. Though if they have access to the VPS filesystem, nothing would stop them from doing it themselves.
Did you register as the site admin? -- Most search engines require registering and authorizing to yield better search indexing. All the major indexes use this: google webmaster, yahoo, and bing. Sure, you can wait for a crawler to pick it up -- but it can take a while for it to find a new domain. You are better off going through the proper channels.
capex vs opex, but still, I see that same problem happening so often it's ridiculous. Servlet engine vs fully enterprise app server.. it's like a sledge hammer on a thumbtack.
I also started looking up past winners, Johns explanation/justification code was brilliant. I had no idea such evilness could be so cleverly concealed.
This has been done to a degree. Not with a C&C style bot that I know of, but back in the self-proliferating worm/virus days, one of the big nasty virii had come out, and someone wrote the "anti-virus" that basically infected using the same exploit, and started trying to "infect" the virus host with the cleanup virus, then self-destructing. It had some flaws and turned out to be just as aggressive as the original bot, which caused yet additional DoS's on providers and hosts. The name of the virus and the cleanup "virus" escape me at the moment though.
It really depends on the size of the company. I'd wager most larger companies track licenses and products as assets. For the Small to medium sized business, it all to often gets overlooked due to a lack of resources to track, and a lack of upper management backing to spend dollars on something they didn't previously pay for.
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I know, cosmic rays sound so much cooler, but it's far more likely he has some crappy memory and/or his memory refresh timings are too high.
DRAM memory cells have to be refreshed pretty often (anywhere from 7.8usec-12usec), otherwise they become unreliable. If his BIOS has the memory timings set to something obscurely long, it may be there are specific rows/cells on his DRAM modules that are too weak to read after bleeding off a bit of charge. Changing the refresh timing would likely improve the situation, causing the memory to refresh it's state more often.
Sadly, I'm not sure this comment warranted a troll rating..
I'll cut you some slack: 1,2,3 and 5 are certainly valid points for why virtualization/hypervisors. 4 is completely non-sense. Virtual hosting or aliased IP's is far more manageable than one VM per site. The only exception might be if you need customer isolation, but even that can be accomplished without virtualization.
My main value out of hypervisors is the detachment from hardware dependencies. If I can upgrade server hardware without affecting my "servers", by effectively just reallocating or migrating a VM to another host, my job as an admin is remarkably easier. Additionally, much of the HA and resource optimization (memory dedupe and such) abilities of hypervisors nowadays make it significantly more effective to run more apps with less hardware, while still being able to provide redundancy and availability.
No.
Presumably, read mail real fast.
I'm a big fan of tarpitting SSH connections myself. It dramatically cuts down on the repeated ssh attempts, and keeps my logs much cleaner.
Basically, an iptables rule:
-A INPUTCHAIN -m state --state NEW -m recent -p tcp --dport 22 --update --seconds 30 --hitcount 4 --rttl --name SSH -j DROP
I don't think many security-minded folks would enable PermitRootLogin for sshd without-password on a public system. Though if they have access to the VPS filesystem, nothing would stop them from doing it themselves.
Movements do not reflect "science" in it's politicized state.
Movements only reflect popular ideas in the community.
The lack of research in one particular direction is merely an observation without merit.
Did you register as the site admin? -- Most search engines require registering and authorizing to yield better search indexing. All the major indexes use this: google webmaster, yahoo, and bing. Sure, you can wait for a crawler to pick it up -- but it can take a while for it to find a new domain. You are better off going through the proper channels.
It could certainly open a whole new advertising avenue channel.
That's an old bar trick. It has to do with the co2 being released on pressure change. Nothing like the science these folks have described.
Were you watching E! ? Office Space just ended, and I was thinking the same thing!
Replicas stored across multiple servers -- if one is corrupted or unavailable requiring fsck, who cares? Ask the next server in line for the data.
Actually, they could. It's not like you pay anything for it.
not to mention the integrated camera for recording video or stills.. it's an interesting proposition for sure
capex vs opex, but still, I see that same problem happening so often it's ridiculous. Servlet engine vs fully enterprise app server.. it's like a sledge hammer on a thumbtack.
I also started looking up past winners, Johns explanation/justification code was brilliant. I had no idea such evilness could be so cleverly concealed.
This has been done to a degree. Not with a C&C style bot that I know of, but back in the self-proliferating worm/virus days, one of the big nasty virii had come out, and someone wrote the "anti-virus" that basically infected using the same exploit, and started trying to "infect" the virus host with the cleanup virus, then self-destructing. It had some flaws and turned out to be just as aggressive as the original bot, which caused yet additional DoS's on providers and hosts. The name of the virus and the cleanup "virus" escape me at the moment though.
Most people attribute the headaches from red wines to the oak, but I'm pretty sure nobody has quite nailed down the problem..
It really depends on the size of the company. I'd wager most larger companies track licenses and products as assets. For the Small to medium sized business, it all to often gets overlooked due to a lack of resources to track, and a lack of upper management backing to spend dollars on something they didn't previously pay for.
I'll keep an eye out for Doc Brown and his Delorean
The SEC is overwhelmed with work -- so you can imagine that building a case against >6 people took them some time..
I found this exchange totally amusing...
Sounds exactly like Diablo and it's multiplayer/open option.. it was diluted with hacks and cloning and such..
Why not just mkfs.ext3 -N someAmountOfInodes?