Hi Amos Yes the problems seems to be gone and it could be the reason thanks for explaining. regards, Bilal
---------------------------------------- > Date: Mon, 31 May 2010 20:32:43 +1200 > From: [email protected] > To: [email protected] > Subject: Re: [squid-users] Youtube -An error occured, please try again later > > GIGO . wrote: >> Hi henrik, >> >> Right now i don't have my access.log. (will share it with you after the >> weekend) However let me tell you that after setting the negative_ttl to 0. >> Apparently the problem was resolved. But i need to be sure about it. >> >> Do you think that this had resolved the problem? > > Quite probably. > > negative_ttl forces Squid to cache and provide ALL clients with the 4xx > or 5xx error page for a certain length of time. Even if it was only a > temporary issue due to a single client request failure. It's a manually > added DoS vulnerability to every Squid which uses it. > > It's rarely useful nowdays even for its original purpose of reducing 404 > flooding of backend servers. > > Amos > -- > Please be using > Current Stable Squid 2.7.STABLE9 or 3.1.3 > _________________________________________________________________ Hotmail: Free, trusted and rich email service. https://signup.live.com/signup.aspx?id=60969
