resolvconf override provides a shared library to be used as an LD_PRELOAD to override the nameservers listed in /etc/resolv.conf on glibc-based systems (eg. most Linux distributions). Usage ----- To use the Google DNS in place of the ones mentioned in /etc/resolv.conf you would run: LD_PRELOAD=/usr/lib64/libresolvconf-override.so NAMESERVER1=8.8.8.8 NAMESERVER2=8.8.4.4 myapplication Invalid nameserver names passed as arguments are ignored. Technical details ----------------- The shared library overrides the gethostbyname(), getaddrinfo() and res_init() system calls. It does not support IPv6, and might be lacking particular system calls overrides for all applications to work as expected. License ------- This code is under the same license as the glibc itself (GNU Lesser General Public License v 2.1) See the glibc license for details: http://www.gnu.org/software/libc/manual/html_mono/libc.html#Copying Copyright --------- Copyright Bastien Nocera <hadess@hadess.net> 2013