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Epoch dates for the start and end of the year/month/day Convert seconds to days, hours and minutes What is epoch time? The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (in ISO 8601: 1970-01-01T00:00:00Z). Literally speaking the epoch is Unix time 0 (midnight 1-1-1970), but 'epoch' is often used as a synonym for 'Unix time'. Many Unix systems store epoch dates as a signed 32-bit integer, which might cause problems on January 19, 2038 (known as the Year 2038 problem or Y2038).
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VULNERABILITIES IN UNIX
Information provided by the Sans Institute:
http://www.sans.org
The ten most commonly exploited UNIX vulnerabilities?
Poor system administration practices
Reusable/poor passwords
Flawed SUID programs (e.g., rdist, binmail)
HTTP servers and CGI application vulnerabilities
Default "+" entries in the /etc/hosts.equiv file
NFS/NIS vulverabilities sendmail program bugs
Buffer overruns (e.g., gets(), syslog())
SUID shell scripts
