A couple of days prior I upgraded from 5.6 latest updates to 6. Everything worked fine except horde which I was expecting and is documented elsewhere.
On the day we lost connection the server worked fine for the first 5 hours of the work day and then suddenly no http.
I was very busy but I cleared the squid cache and restarted it, and generally poked and proded. My server had httpd - and I was looking for a clue using lynx. I found that squid was complaining of having no input - I cant remember the exact message but it was saying that the input side to squid was timing out. I dont recall wether masq was running or not but I restarted it. I also restarted squid and it would die with errors in the log about a signal 6. Googling for this using lynx proved more than I could take after a long working day.
After about 3 days and work pressures, late one nite I backed up and put on 601-01 and we have been fine since.
Yes I took the cowards way out - I needed that damn server working NOW! Just like my clients do
