- Host Name to IP Address
- For a given host name this utility will use DNS to look up the IP address. If an IP address is found, an attempt will be made to locate the country in which the IP address was allocated.
- IP Address to Host Name
- For a given IP address this utility will interrogate the machine using that IP address to find out its host name. If the given IP address, an attempt will be made to locate the country in which the IP address was allocated.
- Flushing DNS tables in Windows
- Windows does not always honour the time-to-live (TTL) for DNS records. This can mean that a host than has moved from on server to another is not found as Windows continues to keep the DNS information about the old IP address of the host name. To force Windows to refresh its host name to IP address tables, the Windows DNS tables need to be flushed.
- What is an ?net?
- Find out the difference between an Internet, Intranet and Extranet.
- Uptime
- See how long a LINUX computer has been running since it was last booted.
- Find
- Find files on a LINUX computer
- Job Control
- Useful commands and techniques to control LINUX jobs
- Lastlog
- List last login time for all users on a LINUX system
- Wtmp
- List login and logouts of various users on a LINUX system
- Crontab and %
- How to use % in a crontab entry and for it to be used as the text character % and not a new line character
- Convert Base64 Encoded Data
- Convert Base64 Encoded data to ASCII and vice versa. Also convert Base64 Encoded data to EBCDIC
- RSS
- Syndication of data from a web site
- Encryption
- Understanding how modern encryption and decryption works
- MSIE Download text file
- How to get around the problem with MSIE downloading, and not viewing, plain text files
- ISO 9001
- An overview of the ISO 9001 quality management systems standard
- Contracts
- An overview of which party’s terms and conditions applies to a contract
- Calendar
- Show a calendar for any year from 1 AD to 9999 AD with interesting information about Julian and Gregorian calendars
- qpsmtpd
- Details of some useful qpsmtpd plugins
- Yahoo! Delays E-mail
- Details on why Yahoo! can delay e-mails to its customers
- Other E-mail delays
- An explanation of why some emails take a long time to be delivered
- Obfuscate E-mail Address
- How to hide an e-mail address, on a web page, from spam robots that harvest e-mail addresses
- Short URLs
- Convert a long URL into a much shorter URL so that it does not wrap in an e-mail message
- Dreamweaver Problems
- Some easily solved Dreamweaver problems
- Generate a QR Code
- Generate a bar code that can be read by a mobile phone with a QR Code reader app
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