Debian: New PowerDNS packages reduce DNS spoofing risk


 
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Old 08-11-2008
Debian: New PowerDNS packages reduce DNS spoofing risk

LinuxSecurity.com: Brian Dowling discovered that the PowerDNS authoritative name server does not respond to DNS queries which contain certain characters, increasing the risk of successful DNS spoofing (CVE-2008-3337). This update changes PowerDNS to respond with SERVFAIL responses instead.

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avahi-dnsconfd.action(8)				      System Manager's Manual					  avahi-dnsconfd.action(8)

NAME
avahi-dnsconfd.action - avahi-dnsconfd action script SYNOPSIS
/etc/avahi/avahi-dnsconfd.action DESCRIPTION
avahi-dnsconfd.action is the action script that is called whenever a new unicast DNS server is found or removed by avahi-dnsconfd. The default script as shipped with avahi patches /etc/resolv.conf to reflect the changed unicast DNS server configuration. PARAMETERS
argv[1] Contains the character "+" if the DNS server is new, "-" when it shall be removed from the DNS server list. argv[2] The IP address of the DNS server. argv[3] Numerical network interface number this DNS server was found on. argv[4] Numerical protocol number this DNS server was found on. (usually 2 for IPv4 and 10 for IPv6) ENVIRONMENT
AVAHI_INTERFACE Contains the textual interface name the corresponds with argv[3]. (e.g. "eth0") AVAHI_INTERFACE_DNS_SERVERS Contains a list of all DNS servers that avahi-dnsconfd found on the interface $AVAHI_INTERFACE, separated by spaces. AVAHI_DNS_SERVERS Contains a list of all DNS server that avahi-dnsconfd found on all interfaces, separated by spaces. AUTHORS
The Avahi Developers <avahi (at) lists (dot) freedesktop (dot) org>; Avahi is available from http://avahi.org/ SEE ALSO
avahi-dnsconfd(8), avahi-daemon(8) COMMENTS
This man page was written using xml2man(1) by Oliver Kurth. Manuals User avahi-dnsconfd.action(8)