Thursday, November 17, 2005

MP3 Ripper - FreeRIP

FreeRIP
FreeRip is a freeware application that lets you save audio CD tracks to Wav or MP3 or Ogg Vorbis audio files. FreeRIP is also an audio file converter since it can convert and encode from WMA, MP3, Ogg Vorbis, Wav files to Ogg Vorbis, MP3 or Wav.

FreeRIP is a CD ripper, this means that it can record digital audio tracks directly from audio CD to files on your hard drive (this process is known as "ripping"). You can save tracks as CD quality WAV files or encode them to Ogg Vorbis or MP3 compressed audio format.

freedb CD database, and ID3 Tagging (Version 1 and 2) are supported. FreeRIP automatically downloads album and song titles from freedb Internet databases and stores them in the MP3 and Ogg Vorbis files themselves.

There are even tutorials available in (currently) four languages.

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tcptraceroute

DAG: tcptraceroute RPM packages for Red Hat/Fedora
tcptraceroute is a traceroute implementation using TCP packets.

The more traditional traceroute sends out either UDP or ICMP ECHO packets with a TTL of one, and increments the TTL until the destination has been reached. By printing the gateways that generate ICMP time exceeded messages along the way, it is able to determine the path packets are taking to reach the destination.

The problem is that with the widespread use of firewalls on the modern Internet, many of the packets that traceroute sends out end up being filtered, making it impossible to completely trace the path to the destination. However, in many cases, these firewalls will permit inbound TCP packets to specific ports that hosts sitting behind the firewall are listening for connections on. By sending out TCP SYN packets instead of UDP or ICMP ECHO packets, tcptraceroute is able to bypass the most common firewall filters.

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