Wednesday, March 30, 2016

Fix cURL CURLOPT_TIMEOUT_MS bug

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cURL is a very useful library written in C which allows you to do a lot of network jobs like calling HTTP REST API, etc. Recently, I need ...

How to add timeout to an XMLRPC-C client

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XMLRPC-C is very efficient if you need a remote process call protocol. I happen to need to add timeout limit to an XMLRPC client based on...
Thursday, May 28, 2015

How to test the network bandwidth between two machines on Linux

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1. Install iperf on Ubuntu: sudo apt-get install iperf on Centos: sudo yum install -y iperf 2.On one machine (haha.google.com) iper...
Monday, April 27, 2015

How to figure out segmentation fault (segfault)

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Well, sometime we do meet segfaults on Linux/Unix systems. We definitely do not like them, as they are hard to debug. (1) What is segfault...
Tuesday, April 21, 2015

How to monitor network traffics on Ubuntu

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(1) Wireshark: shows network packages sudo apt-get install wireshark sudo wireshark (2) tcptrack: shows traffic per IP and port numb...
Monday, February 9, 2015

How to use Junos Pulse VPN client on Ubuntu 12.04

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Junos Pulse is a VPN client made by Juniper. It is widely used in companies. However, as far as I know, there is no released versions for Ub...
6 comments:
Tuesday, October 7, 2014

How to add default network search domain on Ubuntu 12.04

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Why? you can use ping p1.google.com if you added google.com to the default search domain, you only need to do ping p1. This is especially...