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Tag: network

Internet/Network Tools/Open Source Tools

Quick Premier on migration to Curl for a socket programmer

Posted on August 3, 2017 by Vishal Jain

libcurl is quite powerful and allows many widely used protocols. In this post I discuss how a simple socket programmer could find his way using libcurl.

Network Tools

AgentX Tutorial using Net-SNMP – Simple Scalars

Posted on January 14, 2017 by Vishal Jain

smilint, mib2c with mib2c.scalar.conf were used to create simple agentx agent to work with net-snmp.

Debugging Tools/Internet/Network Tools/Unix Admin

Net-SNMP configuration for non-root AgentX application

Posted on January 9, 2017 by Vishal Jain

By using a TCP Socket one can allow a non-root AgentX application/agent to connect to Net-SNMP masteragent. But this should be used for development purpose only...

Network Tools/Unix Admin

Capture local network traffic for multi-homed host

Posted on August 21, 2016 by Vishal Jain

If both end-points of a socket are on local system, network traffic will be seen on loopback interface even if applications are using non-loopback interface (e....

Internet/Network Tools/Unix Admin

vpn : Split Tunnel Concept

Posted on July 4, 2012 by Vishal Jain

Split tunnel allows user to access local network resources and divert Internet traffic away from tunnel while still remain connected to company vpn. Specific ne...

Hardware/Internet/Network Tools

Rename network interface on ubuntu

Posted on May 27, 2012 by Vishal Jain

/etc/udev/rules.d/70-persistent-net.rules defines the name for network interfaces.

Debugging Tools/Network Tools/Open Source Tools/Unix Admin

snmp : find network information of a system centrally

Posted on August 6, 2011 by Vishal Jain

Using snmpwalk on interface table (1.3.6.1.2.1.4.20.1.1 and 1.3.6.1.2.1.4.20.1.3) one can retrieve network information of a system centrally.

php/Unix Admin

php : find if IP address is in Network range

Posted on June 11, 2011 by Vishal Jain

Using pear Net_IPv4 one can find if a given IP address is in provided Network range or on the subnet.

Perl/Unix Admin

perl : find if IP address is in Network range

Posted on June 10, 2011 by Vishal Jain

Using NetAddr::IP one can find if a given IP address is in provided Network range or on the subnet.

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