Associate Packet: Fill & Download for Free

Generally yes, but it depends on who you're hiding from. Also, it must be noted that it is easy to give away your identity if not done correctly.Let me expand. You can first see my answer here How does Tor work? to give us a baseline understanding. Now keep in mind that the two points you need to consider are the entry and exit points as those could be intercepted by the ISP of the entry node (you) or the ISP of the exit node. Also keep in mind that powerful nations often work closely with the ISPs of the world and may (most likely are) be intercepting this traffic.Also, let's consider Traffic Analysis. If a powerful organization such as the NSA can sniff both the entry and exit nodes, it is entirely possible to associate packets-in with packets-out and thereby link your exit node with your true IP address. It isn't simple, it isn't 100%, but it is proven to be possible.See this paper from Columbia for the gory details:http://www.cs.columbia.edu/~sc2516/papers/septis_paper.pdfAlso see this news bit for a real world flavor:http://www.zdnet.com/article/beyond-silk-road-2-0-over-400-dark-web-tor-sites-seized-by-fbi/So if you're going to do illegal things that would normally attract the attention of the FBI, then TOR isn't a safe bet. If your adversary is a private investigator or you're just a privacy fanatic, then TOR will work.

Path MTU Discovery (PMTUD) is defined in RFC 1191: Page on Ietf.The goal of PMTUD is to figure out the largest possible packet size that can be sent from the source to the destination. For large data transfers, this would be the most efficient way of sending the data.PMTUD works by sending packets of varying sizes with the Don't Fragment (DF) bit set in the IP header. This tells the routers along the path to discard the packet if they discover a link that can't handle the packet. The routers are also supposed to send back an ICMP error message saying that they've discarded the packet. The source would get these ICMP errors and realize that the associated packet was too large and back down the packet size.Unfortunately, since PMTUD was first defined, the Internet has become a harsher place. Many people have used ICMP packets for Denial of Service (DoS) attacks. As a result, many people block all incoming ICMP packets. This break PMTUD because the source can no longer get timely feedback. The source does see its packets get lost and can time out when they are not acknowledged, but this greatly increases the penalty for using PMTUD and can actually make data transfers slower than if PMTUD was not in use.This issue was not addressed in the design of IPv6, but should be addressed in the next version when the world is ready for that.

It was evening, around 5 pm. My wife and kids were sitting in the drawing room. Kids were getting bored and wife was sipping some tea.I secretly took my car keys, went outside, opened its boot, took out a packet of Corn nachos among other edibles I have secretly kept there.I entered the house slowly, walked to the drawing room and gave them the packet.‘It wasn't in the house, where did you get this from?’ Asked my wife in joy and surprise, while the kids started snatching it from her hands.‘Magic, ’ I laughed.After that the kids and their mother munched on the chips as if given some luxury treat.This lockdown and the associated deprivation has taught us the relevance of smallest of pleasures in life.Thanks for the question, Intiaj Islam.