I do not allow people to use Telnet on servers that I manage, because usernames and passwords are transmitted over the network as clear text. As concerned about security as people are, I am surprised at peoples’ insistence on using FTP. FTP, a network protocol that also transmits password information as clear text, continues to [...]
It seemed that I would be unable to persuade an ISP technical support representative to change their server configuration, while talking with him at 4am. Setting up a 301 redirect between a domain with a www subdomain and a domain without a subdomain is pretty easy. I usually do something like the following when setting [...]
The Linux Programmer’s Manual states, “ldd prints the shared libraries required by each program or shared library specified on the command line.” This tool is useful when setting up a chrooted shell environment. It is also useful when creating custom boot CDs, which may include programs that dynamically link to shared libraries.
All things mechanical will fail. A lack of sound disaster recovery procedures should keep a knowledgeable IT administrator awake at night. Measures to prevent data loss are needed by many recovery scenarios and are a worthwhile vehicle to discuss the overall need to practice disaster recovery procedures. Data backups are a key component of disaster [...]
A data center in Downtown Los Angeles may boast about the multiple backup power generators they possess, but is it enough to deal with power problems that span the whole city for multiple days? Although problem scenarios may seem farfetched when an information architecture is functioning normally, problems do occur as exemplified by the extended [...]