zrm

138 ms·

721.
by zrm 8y ago
> The problem is that you can perfectly fail at implementing a firewall without breaking access to google.com, whereas broken NAT will mean no google for you. Broken NAT: iptables -t nat -A POSTROUTING -o outside0 -j MASQUERADE ipt
722.
by zrm 8y ago
This is true of IPv4 ICMP as well. Same PMTU issues, but many IPv4 implementations fallback to allowing in-path packet fragmentation by the routers (which IPv6 discontinued), which is less visible breakage but still inefficient/problem
723.
by zrm 8y ago
Are you aware of any YouTube-equivalent? Something that allows you to search user-generated/submitted content and content feeds and has a builtin player to display them.
724.
by zrm 8y ago
The solution to that may be to separate the hosting from the discovery. If the hosting is anonymous and censorship-resistant then you'll get every type of content, but for anybody to use it they would first have to find it. Then you ha
725.
Bisected: The Unfortunate Reason Linux 4.20 Is Running Slower(phoronix.com)
227 points by zrm 8y ago|104 comments
726.
by zrm 8y ago
There would be an upper limit, but where is it? Maybe something less exotic than liquid nitrogen (like water cooling), though who knows without trying it. Maybe even a solid air cooler could do it, or at least get within a few percent of it
727.
by zrm 8y ago
> If the cooling system can "take the heat", then the CPU should run as fast as it can. The issue is what happens to benchmarks, because removing the power limit makes the limit thermal, which makes performance proportional to
728.
by zrm 8y ago
> Looking forward to these chips but always have concerns for AMDs ability to execute consistently. Opteron, the original 'Sledgehammer' series was way ahead of Intel because Intel just couldn't bring themselves to put 64
729.
by zrm 8y ago
The first HT processors had smaller caches and that was before operating systems had SMT-aware schedulers. The place where SMT really seems to benefit is in particular applications that can use arbitrarily many threads. This also points to
730.
by zrm 8y ago
It should be possible to do the same thing on anything that supports CPU frequency scaling. Tell the OS that the core the browser is running on should only run at the lowest supported frequency. Or only allow it to run at higher frequency i
731.
by zrm 8y ago
> FTP also interacts badly with firewalls and network administrators (both the competent and not competent versions of them). Passive mode FTP works fine with firewalls that allow outgoing connections. Even active mode can work using som
732.
by zrm 8y ago
> The most reasonable "update" to FTP would be to formally replace it with HTTP, because FTP is an awful protocol --- maybe the worst one in common use --- that deserved to die off decades ago. The biggest problem with FTP[S] i
733.
by zrm 8y ago
> How do they know that you can be trusted, and aren't just another spammer/phisher? That's not it, not all of the time anyway. Over the summer I discovered a third party mail server with a missing DNS entry. It was like t
734.
by zrm 8y ago
> True, the GPU is the ultimate SIMD processor. But in many cases, the SIMD task is too fast to go to the GPU. In particular, the Base64 encoder was encoding 20GB/s, while PCIe can only transport 15.6GB/s!! The CPU is done befo
735.
by zrm 8y ago
Most network protocols like TCP/IP are royalty-free open standards. They have a monopoly in the sense that IPX et al are dead and gone, but that's not the same thing as having a single company in control of them.
736.
by zrm 8y ago
It isn't the upstream forcing the upgrade. It isn't forced at all. You can keep using your old equipment as long as you want. But there would come a point that enough people are using the new protocol that recipients start auto-bl
737.
by zrm 8y ago
> The problem with SS7 is that you extend your SMTP analogy, there is no way to implement the equivalent of SPF, DKIM and DMARC for verification of incoming traffic without breaking SS7-to-SS7 links between the vast majority of installed
738.
by zrm 8y ago
> I'm afraid I still don't follow; Rust also has C-style pointers, they just require one to use the `unsafe` keyword to dereference. I can't think of any C code that can't be expressed in Rust in this way. What I mean
739.
by zrm 8y ago
The day will come when the compilers that do things like that will be righteously categorized as malware.
740.
by zrm 8y ago
If the code is removed entirely then what memory is being improperly accessed?
741.
by zrm 8y ago
> If only we could guarantee immediate segfaults. It should be possible to create a malloc implementation that does that by making the minimum allocation size a page and then not reusing virtual addresses for new allocations. Then once a
742.
by zrm 8y ago
The issue isn't the equivalent of Rust code in C, it's C code without an equivalent in Rust. Rust should prevent the typical UAF bug in C, but if the programmer unwisely insists on using the same pattern in which they fail to trac
743.
by zrm 8y ago
> The symptoms are changed, but no less dangerous. Potentially even more dangerous. Having the program segfault immediately is much preferable to, say, Heartbleed.
744.
by zrm 8y ago
Are you sure that last one isn't the newspaper website itself? They're notorious for that and it would be surprising if you could actually push enough traffic (maybe ~1Gbps sustained?) through a Tor circuit to max out even one cor
745.
by zrm 8y ago
2015: https://news.ycombinator.com/item?id=9001576
746.
Internet Giants Shouldn't Decide Who to Silence But Let Users Decide Who to Hear(techdirt.com)
3 points by zrm 8y ago|0 comments
747.
by zrm 8y ago
The only available E5-2620 with that number of cores per socket is Broadwell.
748.
by zrm 8y ago
> Requiring payments destroys the anonymity though, that's why I don't like it. Isn't that what all of this Bitcoin and Ethereum is supposed to be good for? > Actually, my system can be adapted to email but you have to
749.
by zrm 8y ago
Would this work to deice heat pumps in winter? There are obviously some factors working against it (low temperature, shorter days), but maybe with enough surface area?
750.
by zrm 8y ago
> I'm not sure anything else could be immune to abuse to the same extent though. There are multiple solutions that work if you design the system that way from the outset (which is the same issue yours has). One was suggested above.

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