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SuSE: bind (SUSE-SA:2008:033)

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Special Forums Cybersecurity Security Advisories (RSS) SuSE: bind (SUSE-SA:2008:033)
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Old 07-11-2008
SuSE: bind (SUSE-SA:2008:033)
LinuxSecurity.com: The new version of bind uses a random transaction-ID (TRXID) and a random UDP source-port for DNS queries to address DNS cache poisoning attacks possible because of the "birthday paradox" and an attack discovered by Dan Kaminsky. Unfortunately we do not have details about Kaminsky's attack and have to trust the statement that a random UDP source-port is sufficient to stop it.

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curlopt_dns_interface

CURLOPT_DNS_INTERFACE(3)				     curl_easy_setopt options					  CURLOPT_DNS_INTERFACE(3)

NAME

       CURLOPT_DNS_INTERFACE - set interface to speak DNS over

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DNS_INTERFACE, char *ifname);

DESCRIPTION

       Pass a char * as parameter. Set the name of the network interface that the DNS resolver should bind to. This must be an interface name (not
       an address). Set this option to NULL to use the default setting (don't bind to a specific interface).

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL

PROTOCOLS

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.33.0. This option also requires that libcurl was built with a resolver backend that supports this operation. The c-ares  backend
       is the only such one.

RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_NOT_BUILT_IN if support was disabled at compile-time.

SEE ALSO

       CURLOPT_DNS_SERVERS(3), CURLOPT_DNS_LOCAL_IP4(3),

libcurl 7.54.0							 December 21, 2016					  CURLOPT_DNS_INTERFACE(3)