New csf v7.73

Changes:

• Fix for temporary denies allowing duplicate IP/Port blocks/allows
• Speedup csf –grep [ip] when searching IPSET sets. Note: This does mean that partial IP queries will no longer match IPSET entries
• Added new options LF_IPSET_HASHSIZE and LF_IPSET_MAXELEM to allow for larger ipset sets
• Added option HOST as the location of the “host” binary for DNS TXT record lookups
• Modified X_ARF report to include the abuse contact for a reported IP address where found in the Abusix Contact DB
• Added new option X_ARF_ABUSE. This option allows for automatic sending of X_ARF reports to the IP addresses abuse contact. See csf.conf for warnings about using this option
• Added binary location checking in csf and issue warnings if incorrect, not installed or not executable