Then no, not really. If you're still running, good job. I'd recommend asking on The Comms Room though, as they would know more. I thought you meant for a home user
redirecting the packets back to requesting host. will help destroy the requesting or attacking body am i right ? they will be flooded by there own traffic
but deniel of service attack comes when you block some ip or server or ip's to access your service and your firewall is still receiving the requests and those requests are held some where in our network because we are not doing anything with them.. so why not just let them free and redirect those packets back.. as that huge traffic will probabbly flood the requesting body and in a few minutes the attacker will be down
forexample my datacenter is facebook its so huge it can redirect traffic back.. I am 100% sure the attacker will never have bigger capacity servers or network than facebook... they can counter attack and put that shit down..
but i really want to consult some specialist on this
also, the huge botnets that execute most DDoSes have computers that originate from around the world, many dozens of them, so even if you managed to take 50% of them offline (which would be quite an accomplishment) by reverse DDoSing them, the remaining ones are still hitting you
also, by filling your pipe with inbound traffic, your capacity for outbound traffic is greatly diminished, since pegging an ethernet controller pegs it in both directions
for instance, a 1 Gbps ethernet controller whose incoming queue is absolutely saturated isn't going to be generating a lot of outbound traffic no matter how hard you try
the only way to defeat DDoS is to have more bandwidth as "armor" than the opponent can push their way through
Ironically, the best solution to handling DDOSes isn't technical, you figure out who's doing it, and you smack him on the nose with a newspaper arrest him. Assuming you know who it is, and the place he's in is willing to co-operate.
getting their ISPs to null route them is "fair" in the sense that their computer is compromised and needs to be disinfected, but attacking them back would violate many laws
I understand your fully @allquixotic but my question is if i have dynamic security system. i havre recived certain amount of flood before i get so slow that i will not be able to redirect back the packet.. i will start redirectiing the packets back to that attackers server so if he puts so much packets on my server he will have same amount on his server eventually he will be down at some point..
@YousafEhsan OK, so, let's assume for the sake of argument that if you start receiving a lot of traffic from a given host, you try to generate just as much traffic in the return direction in an attempt to take them offline
@YousafEhsan: If you're datacenter sized, you call up your upstream provider, and tell them to nullroute anything from those IP address ranges temporarily
if you are "scared" of DDoS, pay to have your service/website put behind a provider that defends against DDoS... let the provider take care of mitigating the DDoS for you; it's their job and you're paying them to do it
they'll certainly do a better job than you're likely to if you think "reflecting" attacks (whatever the hell that means) is going to do you any good (hint: it's not)
I've found stubhub to be pretty terrible -- they get DDoS'ed by their own legitimate customers several times per year when there are popular / good deals on American sports
@YousafEhsan the real prevention is two-pronged: (1) raise the standard of application security on the internet by making vulnerable innocents patch their software so they don't have gaping security holes that the bad actors can exploit; and (2) find people who have performed DDoSes in the past and put them in jail and take away their computers and houses
strange that they'd ship you a 2 x 4GB configuration -- usually it's cheaper for them to ship you 4 x 2GB because of the lower cost of less-dense sticks
I need to get to bios. Unfortunately, I enabled fast boot, which allows me to really quickly boot up Ubuntu. But it is too fast. I can't access bios, it's that fast.
I am in csm boot mode, as I originally had windows 8 on my computer, and I have to be in that mode to boot anything but windo...
Troubleshooting questions are bad!
We are a Question & Answer site, not a forum. You mentioned becoming a clone of Wikipedia, which is basically exactly what we should be. (Obviously, we don't want to be an exact clone, but we want to be an encyclopedia of problems and solutions to these problem...
@Seth he still didn't state exactly what make and model his computer/laptop is, which is easily the most important thing to state when you are talking about extremely hardware-specific stuff like the BIOS
basically he asked "tell me what kind of engine is in my car" without saying whether it's a Ford or a Honda or a GM or a Geely or a Fiat or a Chevy or..., let alone the actual model
also, whatever solution we come up with is likely going to be localized to this specific hardware
I really don't like the question, as it's more noise than signal, but it would be useful if the question were something like, "Is there a general-purpose way to force a computer to reboot straight into the BIOS from Ubuntu?" (or replace "Ubuntu" with something like "GNU/Linux" to be less localized)
@Seth well, feel free to clean it up if you want; if you want to make it into something that would fit on the good side of the bright line that Oliver laid out in his answer I posted above, feel free to migrate it
it's got to fit into one of two categories: either a very general question where we can create high-quality answers with a lot of "is X? then do Y" steps to help people narrow it down -- that's one type of good question -- or, a very specific question with lots of evidence, including the user's exact make and model and what they're trying to do
right now it's a "I have this problem, help!" which is neither prompting a general guide, nor directly answerable, so it's a bad question as currently written
(note that "I have this problem, help!" questions can be good if the problem description is so full of detail and narrows it down so much that we can literally put our finger on the answer -- but the way this question currently sits, it would require extensive back and forth in the comments to get it to that point, which is where the "Troubleshooting questions are bad!" in Oli's post originates from)
basically, some significant proportion of SU questions devolve into user-on-user tech support forum (ugh) type questions, where a guy posts his immediate problem with a tiny bit of detail about his specs (or none whatsoever) and then we spend 3 days going back and forth in the comments extracting information with pliers, like pulling teeth, and that's a really bad format for Q&A
and we're trying not to have that because it degrades the quality of the site
In parallel computing, an embarrassingly parallel workload, or embarrassingly parallel problem, is one for which little or no effort is required to separate the problem into a number of parallel tasks. This is often the case where there exists no dependency (or communication) between those parallel tasks.
Embarrassingly parallel problems (also called "pleasingly parallel problems") tend to require little or no communication of results between tasks, and are thus different from distributed computing problems that require communication between tasks, especially communication of intermedia...
@DragonLord as opposed to regular laptop upgrades? I've never seen a consumer laptop that was difficult to add more RAM to. Except a certain ASUS modelnumberhere**X**. The X stood for "SMD Mounted RAM only."
the worst-maintainable consumer laptops are the non-laptop category: Surface Pro, and other similar "ultrabook" form factor devices, are built with internal density similar to smartphones, where every millimeter is accounted for, things are glued together, you need special tools, etc
@Bob Give n' take, nice that someone did that, right after i disabled everything that wanted to much of my info :-)
I was reading how they removed programs from the store that "mess with other apps" like destroying the ads by stopping the data flow, etc. For $2-$5 for apps, seems that people , Heck even my cheapskate self will buy an app that 1) works 2) isnt full of bugs 3) works a week later.
laziness vs. effort required to put on coat, zip coat, grab keys, go out to the stairs, go up the stairs, exit the building, open car, grab phone, walk back inside, go down stairs, swipe badge, enter work area, unzip coat, take off coat, plug in phone
I was already considering it as lost and gone for good, but the guys from the "central" (actually just a dozen of suspicious looking guys with walkie talkies in front of a bus stop) were so kind in contacting the original driver and giving it back to me; in the end I gave them some money for the beer and couldn't stop thinking about how underground transportation is more honest than official politicians
Nah, there were at least three or four "underground" companies operating where I work
Although only two operate on the route I use.
And they could just as well say "no sir, haven't seen it, sorry" and I'd still have to take the van every day, because it's 20min trip vs 60~90min trip
I had originally said I had lost "a book", and since it's in a leather casing, I thought "well maybe they just didn't open it and assumed it was a cheap book", but in the next day the same driver said "be careful to not forget your tablet", so he was actually honest
I am still looking for a decent anti-theft app (well, actually a post-theft device finder app). So far I have only tested Prey, it didn't work when I had just forgot my phone at work.
It's almost noon and I'm struggling to get off bed. I should probably get up and wash the ton of dishes piling up on the sink, gotta be a semi-decent husband at least sometimes.
The General Answer
(Independent of what make/model computer you have)
Here's how you can answer this question for yourself, without having to ask it on SuperUser:
Write down your laptop make and model.
Google Search for "Make Model teardown" or "Make Model maintenance manual" or "Make Model r...
This is a troubleshooting question, which is likely to involve a lot of back and forth in the comments. Instead, come on over to chat and we'll extract the information we need from you, like pulling teeth with pliers. Don't worry, we won't use any novocaine on you first, to ensure maximum pain sensation >:) — allquixotic1 min ago
@DrakaSAN I've used this before; it's basically gparted for windows, except proprietary freeware... I've used it before and I don't think it has any spyware, but it's proprietary so you never know ;p
The problem is that the SGIII (as with most Android 4 devices) does not connect as a USB Mass Storage device (Google dropped support for USBMS in Android 4). It connects as an MTP device instead and Windows does not see MTP devices as a mass storage devices, so as indicated by worwig, you don't get a device to connect to. That is why I've had to use resort to using webdav.
Barney
Furthermore, this gentlement who answered your question here is using humor (superuser.com/questions/240794/…), making fun of the HP wireless assistant, yet you did not feel the need to correct his post? That is called a double standard my friend. You need to stay out of my posts or I will file a complaint. It isn't fair to pick on newbies. — gogogadgetinternet32 mins ago
There should really be a feature on SU to hide questions from people with less than X rep points. Sometimes I hop on here during lunch to answer a quick few questions and it would help to weed out those who most likely haven't learned how to ask good questions.
So I'm going to a wedding today, where the bride would rather the photographer stay out of the amateur video they've asked me to shoot more than him getting the best shots they've paid him to get.
There seems to be a deluge of questions by folks with rep of 1-10. Many of these questions are "homework" or questions that are annoying to me "please read my 500 line script and tell me whats wrong with it" Is there any way to filter questions by reputation?
I tried asking this in the Arqade SE, but they suggested this SE was better. My current version of Google Earth runs poorly and I'm not sure why. Often when exploring around it stutters terribly. If I launch the flight sim, my framerate is out of control. I never had this problem before. My PC ha...
@Sathya You don't have laptop with wireless network? Anyhow, try creating portable Wi-Fi hotspot on smartphone and connecting with laptop to it. Then use any FTP file transfer program and be amazed at speed improvement.
I'm starting to get a small group of followers in my town for it, and hearing that people on SU also like it... Makes me feel good! Like I'm giving back or something
@MichaelFrank they're trying to be more universal, you know, just in case you might care about files on other peoples' PCs
Windows 9 will have the following structure in Windows Explorer: Universe Instance #5789900246 --> Milky Way Galaxy --> Local Cluster --> Solar System --> Earth --> New Zealand --> Your Town --> Your Neighborhood --> Your Street --> Your House --> This PC
And there was this brief moment when Explorer pops open the "This folder is too large for your recycle bin and will be permanently deleted. Are you sure?" and I pressed Hell yeah, I'm sure
An auk is a bird of the family Alcidae in the order Charadriiformes. Extant auks range in size from the Least Auklet, at 85 g (3 oz) and 15 cm (6 in), to the Thick-billed Murre, at and 45 cm (18 in). They are good swimmers and divers, but their walking appears clumsy. Modern auks can fly (except for the recently extinct Great Auk). Due to their short wings, auks have to flap their wings very quickly in order to fly.
Auks are superficially similar to penguins having black-and-white colours, upright posture and some of their habits. Nevertheless they are not clo...
Just a random question: does anyone know of any hardware device (other than a full computer) that I can plug in a serial DB-9 connection, and have just the keyboard and monitor outputs, so I plug in a keyboard/monitor?
Well, I know where most of my visits are coming from!
And 100% of the mobile users use ANDROID! There is hope afterall :P