bzcat /var/log/messages.* | grep 'from=<' | sed -e 's/.*msgid=<\(.*\)>.*/\1/g' > who_send_mail.txt\(.*\)El resultat es recupera via:
\1
Es mostren els missatges amb l'etiqueta de comentaris unix. Mostrar tots els missatges
Es mostren els missatges amb l'etiqueta de comentaris unix. Mostrar tots els missatges
divendres, 17 d’agost del 2012
Com saber qui envia mail
Com saber qui envia mail via analisis de /var/log/messages
El resultat es recupera via:
El resultat es recupera via:
dimarts, 1 de març del 2011
Enabling High Performance Data Transfers
System Specific Notes for System Administrators (and Privileged Users)
These notes are intended to help users and system administrators maximize TCP/IP performance on their computer systems. They summarize all of the end-system (computer system) network tuning issues including a tutorial on TCP tuning, easy configuration checks for non-experts, and a repository of operating system specific instructions for getting the best possible network performance on these platforms
These notes are intended to help users and system administrators maximize TCP/IP performance on their computer systems. They summarize all of the end-system (computer system) network tuning issues including a tutorial on TCP tuning, easy configuration checks for non-experts, and a repository of operating system specific instructions for getting the best possible network performance on these platforms
This material is currently under active revision. Please send any suggestions, additions or corrections to us at nettune@psc.edu so we can keep the information here as up-to-date as possible.
- Introduction
- Tutorial
- Bandwidth*Delay Products (BDP)
- Buffers
- Computing the BDP
- High Performance Networking Options
- Maximum Buffer Sizes on the host
- Socket Buffers sizes
- Negotiating TCP Large Windows options (RFC1323)
- TCP Selective Acknowledgments (SACK, RFC2018)
- Path MTU
- Using Web Based Network Diagnostic Servers
- Quick Link: NPAD Pathdiag end system and last mile diagnostics at PSC
- Quick Link: NPAD Documentation and additional servers.
- Quick Link: SYN Test Server
- Quick Link: ORNL Bandwidth Tester
- Quick Link: ANL Network Diagnostic Tool
- Quick Link: NPAD Pathdiag end system and last mile diagnostics at PSC
- Detailed Procedures for System tuning and Raising network limits for:
- Acknowledgments
dijous, 23 de setembre del 2010
UNIX tips: Learn 10 good UNIX usage habits
Adopt 10 good habits that improve your UNIX® command line efficiency -- and break away from bad usage patterns in the process. This article takes you step-by-step through several good, but too often neglected, techniques for command-line operations. Learn about common errors and how to overcome them, so you can learn exactly why these UNIX habits are worth picking up.
Subscriure's a:
Missatges (Atom)