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Monday, July 4, 2011. HOW TO AVOID] kernel: possible SYN flooding on port 80. Sending cookies. Sometime back, one of the servers I work on, frequently faced an outage of web services. On investigating, I found that it had something creeping up in it's logs. Something which read -. Kernel: possible SYN flooding on port 80. Sending cookies. It looked like a Denial of service attack. It was evident that I needed to beef up security! Avoiding a DDOS attack on a web server. Then I followed these quick steps -.

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Monday, July 4, 2011. HOW TO AVOID] kernel: possible SYN flooding on port 80. Sending cookies. Sometime back, one of the servers I work on, frequently faced an outage of web services. On investigating, I found that it had something creeping up in it's logs. Something which read -. Kernel: possible SYN flooding on port 80. Sending cookies. It looked like a Denial of service attack. It was evident that I needed to beef up security! Avoiding a DDOS attack on a web server. Then I followed these quick steps -.

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a Technical Life | tech.srinaths.com Reviews

https://tech.srinaths.com

Monday, July 4, 2011. HOW TO AVOID] kernel: possible SYN flooding on port 80. Sending cookies. Sometime back, one of the servers I work on, frequently faced an outage of web services. On investigating, I found that it had something creeping up in it's logs. Something which read -. Kernel: possible SYN flooding on port 80. Sending cookies. It looked like a Denial of service attack. It was evident that I needed to beef up security! Avoiding a DDOS attack on a web server. Then I followed these quick steps -.

INTERNAL PAGES

tech.srinaths.com

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a Technical Life: March 2010

http://tech.srinaths.com/2010_03_01_archive.html

Sunday, March 21, 2010. Clearing saved conversations from Empathy IM. Empathy IM is the current default IM client in GNome. Every time you sign in and open a chat window, it shows all your previous conversations in the same window above. Doing a. Will only temporarily clear the screen. When you reopen the window, it reappears. It stores all the conversations as text files (xml with .log extensions). The Empathy logs are stored in the following folder,. Sunday, March 14, 2010. I am used to compiling(almos...

2

a Technical Life: December 2010

http://tech.srinaths.com/2010_12_01_archive.html

Sunday, December 5, 2010. Runlevel links at boot time with chkconfig. Generally after every server setup, we need to place a few services on startup. Depending on the operating system, I have tried quite a few techniques right from manually placing scripts in init.d. To the ease of update-rc.d. On ubuntu). However, today I would like to showcase another tool - chkconfig. Just for the fact that it has some real clean representation,. A chkconfig - list. Sample output on a CentOS installation:. Haldaemon 0...

3

a Technical Life: October 2010

http://tech.srinaths.com/2010_10_01_archive.html

Friday, October 15, 2010. Recently on a fresh installation of CentOS 5, I was setting up mysql. My troubles started after changing mysql's datadir from the default( /var/lib/mysql. All attempts of starting mysqld. Failed. A quick look in mysql's log showed complaints about Err no. 13. This was clearly an issue of file permissions. Even chmod / chown could not help. I could not start mysqld. However, If I changed the datadir back to the default ( /var/lib/mysql. Things worked just fine. Thats it. SELi...

4

a Technical Life: Clearing saved conversations from Empathy IM

http://tech.srinaths.com/2010/03/clearing-saved-conversations-from.html

Sunday, March 21, 2010. Clearing saved conversations from Empathy IM. Empathy IM is the current default IM client in GNome. Every time you sign in and open a chat window, it shows all your previous conversations in the same window above. Doing a. Will only temporarily clear the screen. When you reopen the window, it reappears. It stores all the conversations as text files (xml with .log extensions). The Empathy logs are stored in the following folder,. Subscribe to: Post Comments (Atom).

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a Technical Life: apache2: bad user name ${APACHE_RUN_USER}

http://tech.srinaths.com/2010/03/apache2-bad-user-name-apacherunuser.html

Sunday, March 14, 2010. Apache2: bad user name ${APACHE RUN USER}. I am used to compiling(almost always) the apache 2 server on linux. However, this time when I set up my new ubuntu machine, I decided to try the mighty apt-get/package manager. After installation I tried browsing to http:/ localhost/. And was quite happy to see the server running. Sometime later, I felt the need to restart apache. When I tried to restart using the. Ps -ef grep apache". Showed me the process running as. Apache2: bad user n...

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tech.srinaths.com

a Technical Life

Monday, July 4, 2011. HOW TO AVOID] kernel: possible SYN flooding on port 80. Sending cookies. Sometime back, one of the servers I work on, frequently faced an outage of web services. On investigating, I found that it had something creeping up in it's logs. Something which read -. Kernel: possible SYN flooding on port 80. Sending cookies. It looked like a Denial of service attack. It was evident that I needed to beef up security! Avoiding a DDOS attack on a web server. Then I followed these quick steps -.

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