Our FAQ section is updated in last few days with new howtos:
- Linux Network IP Accounting – I need to know how much data are transmitted on my ppp0 network or eth0 Internet links? How do I set IP accounting by address such as 188.8.131.52 and 184.108.40.206? How do I set IP accounting per Apache virtual domain? How do I set accounting by service port (http, smtp) and protocol (tcp, udp, icmp)? How do I record how much traffic each of the clients computer is using?
- Linux / UNIX: DNS Lookup Command – How do I perform dns lookup under Linux or UNIX or OS X operating systems without using 3rd party web sites for troubleshooting DNS usage?
- Linux: Find Out Which Process Is Listening Upon a Port – How do I find out running processes were associated with each open port? How do I find out what process has open tcp port 111 or udp port 7000 under Linux?
- Google Apps Domain Create SPF Records For BIND or Djbdns – I work for a small business and outsourced our email hosting to Google. However, I noticed that spammers are using our From: First Last to send their spam messages. All bounced messages come to our catch only account. How do I stop this? How do I validate our domain using SPF? How do I configure a SPF for Google Apps domain using BIND 9 or djbdns?
Mac Os X: Mount NFS Share / Set an NFS Client – How do I access my enterprise NAS server by mounting NFS filesystem onto my Mac OS X based system using GUI and command line based tools?
- Explains: echo Command (echo $â€stringâ€) Double-quoted String Preceded By a Dollar Sign – I noticed that many shell scripts in /etc/init.d/ directory use the following syntax – echo $”Usage $prog start|stop|reload|restart”. Why a double-quoted string preceded by a dollar sign ($â€stringâ€) using the echo command under Linux / UNIX bash scripts?
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