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PeerGuardian entry - what is it?
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<blockquote data-quote="ggeobc" data-source="post: 1318929" data-attributes="member: 220601"><p>I don't pretend to be any kind of expert, I'm far from it, but this is what this dummy has found out:</p><p></p><p>A bogon is a bogus IP address, and an informal name for an IP packet on the public Internet that claims to be from an area of the IP address space reserved, but not yet allocated or delegated by the Internet Assigned Numbers Authority (IANA) or a delegated Regional Internet Registry (RIR). The areas of unallocated address space are called the bogon space.</p><p></p><p>Many ISPs and <u><strong>end-user firewalls filter and block bogons</strong></u>, because they have no legitimate use, and usually are the result of accidental or malicious misconfiguration. Bogons can be filtered by using router ACLs, or by BGP blackholing.</p><p></p><p>Examples: (from PG's block list)</p><p></p><p>(http) tcp4 'Safari Webpage Preview Fetcher (573)' (Valueclick.com Karl Keyton:Ads, Spyware, Bogon, etc)</p><p></p><p>Sun Oct 30 2011 18:47:07.473 PDT -Blck- local:0 -> 74.121.176.40:80 (http) tcp4 'Safari Webpage Preview Fetcher (573)' (Kontera Technologies Inc:Ads, Spyware, Bogon, etc)</p><p></p><p>Sun Oct 30 2011 19:03:28.427 PDT -Blck- local:5353 (mdns) -> 224.0.0.251:5353 (mdns) udp4 'mDNSResponder (25)' (Bogon:Ads, Spyware, Bogon, etc)</p><p></p><p>As you can see, several entries in PG's block list are from the Safari webpage preview fetcher. PG isn't filtering out all of Safari's work as I am getting top sites listed such as CNN, E-bay,etc., these would all have ip's registered with IANA. The entries PG is blocking would be companies that may be new and are not yet listed with IANA, in other words, bogons.</p><p></p><p>Conclusion: PG is doing it's job, protecting my MacBook from unauthorized attempts to access my computer which would be done by using bogus ip's, among other methods. It may be a little too good, in that it is also blocking the mDNSResponder which, in my opinion, it should not be doing as it was designed for Mac users. I could care less about torrents, I am using PG to prevent intruders from hacking into my Mac and prevent spyware from probing my Mac as I do on-line banking and shop on-line as well.</p><p></p><p>I don't believe it is designed to be used on a network, it is meant to be used on a single Mac connected to the Internet, probably why bobtomay was having problems with it, you were using it on a network, right?</p><p></p><p>I am not religious about PG. If anyone knows of anything better then please, tell us about it. I am mostly concerned with protecting my Mac from unwanted intruders.</p></blockquote><p></p>
[QUOTE="ggeobc, post: 1318929, member: 220601"] I don't pretend to be any kind of expert, I'm far from it, but this is what this dummy has found out: A bogon is a bogus IP address, and an informal name for an IP packet on the public Internet that claims to be from an area of the IP address space reserved, but not yet allocated or delegated by the Internet Assigned Numbers Authority (IANA) or a delegated Regional Internet Registry (RIR). The areas of unallocated address space are called the bogon space. Many ISPs and [U][B]end-user firewalls filter and block bogons[/B][/U], because they have no legitimate use, and usually are the result of accidental or malicious misconfiguration. Bogons can be filtered by using router ACLs, or by BGP blackholing. Examples: (from PG's block list) (http) tcp4 'Safari Webpage Preview Fetcher (573)' (Valueclick.com Karl Keyton:Ads, Spyware, Bogon, etc) Sun Oct 30 2011 18:47:07.473 PDT -Blck- local:0 -> 74.121.176.40:80 (http) tcp4 'Safari Webpage Preview Fetcher (573)' (Kontera Technologies Inc:Ads, Spyware, Bogon, etc) Sun Oct 30 2011 19:03:28.427 PDT -Blck- local:5353 (mdns) -> 224.0.0.251:5353 (mdns) udp4 'mDNSResponder (25)' (Bogon:Ads, Spyware, Bogon, etc) As you can see, several entries in PG's block list are from the Safari webpage preview fetcher. PG isn't filtering out all of Safari's work as I am getting top sites listed such as CNN, E-bay,etc., these would all have ip's registered with IANA. The entries PG is blocking would be companies that may be new and are not yet listed with IANA, in other words, bogons. Conclusion: PG is doing it's job, protecting my MacBook from unauthorized attempts to access my computer which would be done by using bogus ip's, among other methods. It may be a little too good, in that it is also blocking the mDNSResponder which, in my opinion, it should not be doing as it was designed for Mac users. I could care less about torrents, I am using PG to prevent intruders from hacking into my Mac and prevent spyware from probing my Mac as I do on-line banking and shop on-line as well. I don't believe it is designed to be used on a network, it is meant to be used on a single Mac connected to the Internet, probably why bobtomay was having problems with it, you were using it on a network, right? I am not religious about PG. If anyone knows of anything better then please, tell us about it. I am mostly concerned with protecting my Mac from unwanted intruders. [/QUOTE]
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PeerGuardian entry - what is it?
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