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Published on 2010-04-10T14:34:39Z
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2010/04/10
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What is the maximum packet size for a TCP connection or how can i get the maximum packet size?
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Hey,
Recently I had a web developer come to me and ask why he was receiving connection errors in his app that was accessing a sql database.
So, I went through my normal trouble shooting steps to isolate or reproduce the issue. I discovered that if I connected to the database using Query Analyzer…
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i don't know how to open a specific port (rtmp=1935) on my CentOS server using Plesk or itables.
I created new rules for port 1935 i/o using Plesk/Modules/Firewall but this doesn't work. Nmap scanning tells me this :
1935/tcp filtered rtmp
.
So i decided to have look at my iptable using SSH (iptables…
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On one of my servers when I type netstat -n I get a huge output, something like 400 entries for httpd. The bandwidth on the server isn't high, so I'm confused as to what's causing it. I'm suspecting an attack, but not sure.
Intermittently, the web server will stop responding. When this happens…
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(Why can/How are) blocked IPs (get/getting) through my iptables?
Hello and thanks for your consideration...
I have configured iptables and included (below) output from the command "iptables --line-numbers -n -L" yet IP addresses (like 31.41.219.180) from IP blocks I have already blocked are getting…
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I'm trying to adjust my iptables firewall to increase the security of my server, and I found something a bit problematic here : I have to set INPUT policy to ACCEPT and, in addition, to have a rule saying iptables -I INPUT -i eth0 -j ACCEPT.
Here comes my script (launched manually for tests) :
#…
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Is it possible to change the connection type in Windows 7? I have a OpenVPN connection which is identified as "unidentified network" and I do not want to apply certain rules to all unidentified networks in the firewall.
How does one conquer this?
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nm-applet seems to have disappeared from my system. I am running 12.10. Here's what I get when I check my package manager logs:
? ~ grep network-manager /var/log/dpkg.log
2012-10-06 10:37:08 upgrade network-manager-gnome:amd64 0.9.6.2-0ubuntu5 0.9.6.2-0ubuntu6
2012-10-06 10:37:08…
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It's been a long time since last I added something here, but having some conversations this last week, I got inspired to update things.
I've been spending a lot of time with Ops Center for managing and installing systems these days. So, I suspect a number of my upcoming posts will be in…
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Neural Networks
· I recently read a book Introduction to Neural Networks for C# , by Jeff Heaton. http://www.amazon.com/Introduction-Neural-Networks-C-2nd/dp/1604390093/ref=sr_1_2?ie=UTF8&s=books&qid=1296821004&sr=8-2-spell. Not the 1st ANN book I've perused, but a nice revision…
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Some time ago nearly all workstations in our team (Windows XP SP2) exhibited intermittend but frequent delays when accessing shares on the network. Typically the first access to a share which hadn't been accessed for some time resulted in a nearly frozen workstation for up to 30 seconds. Then everything…
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