resolvconf.conf

resolvconf.conf is the configuration file for resolvconf(8). The resolvconf.conf file is a shell script that is sourced by resolvconf(8), meaning that resolvconf.conf must contain valid shell commands. Listed below are the standard resolvconf.conf variables that may be set.

After updating this file, you may wish to run resolvconf -u to apply the new configuration.

interface_order

These interfaces will always be processed first. If unset, defaults to the following:-

lo lo[0-9]*

dynamic_order

These interfaces will be processed next, unless they have a metric. If unset, defaults to the following:-

tap[0-9]* tun[0-9]* vpn vpn[0-9]* ppp[0-9]* ippp[0-9]*

search_domains

Prepend search domains to the dynamically generated list.

search_domains_append

Append search domains to the dynamically generated list.

domain_blacklist

A list of domains to be removed from consideration. To remove a domain, you can use foo.* To remove a sub domain, you can use *.bar

name_servers

Prepend name servers to the dynamically generated list. You should set this to 127.0.0.1 if you use a local name server other than libc.

name_servers_append

Append name servers to the dynamically generated list.

name_server_blacklist

A list of name servers to be removed from consideration. The default is 0.0.0.0 as some faulty routers send it via DHCP. To remove a block, you can use 192.168.*

private_interfaces

These interfaces name servers will only be queried for the domains listed in their resolv.conf. Useful for VPN domains. This is equivalent to the resolvconf -p option.

state_dir

Override the default state directory of /run/resolvconf. This should not be changed once resolvconf is in use unless the old directory is copied to the new one.

The following variables affect resolv.conf(5) directly:-

resolv_conf

Defaults to /etc/resolv.conf if not set.

resolv_conf_options

A list of libc resolver options, as specified in resolv.conf(5).

resolv_conf_passthrough

When set to YES the latest resolv.conf is written to resolv_conf without any alteration.

resolv_conf_sortlist

A libc resolver sortlist, as specified in resolv.conf(5).

resolv_conf_local_only

If a local nameserver is configured then the default is just to specify that and ignore all other entries as they will be configured for the local nameserver. Set this to YES to list them instead, if you need working DNS and the local nameserver stops functioning at the expense of duplicated server queries.

openresolv ships with subscribers for the name servers dnsmasq(8), named(8), pdnsd(8) and unbound(8). Each subscriber can create configuration files which should be included in in the subscribers main configuration file.

dnsmasq_conf

This file tells dnsmasq which nameservers to use for specific domains.

dnsmasq_resolv

This file tells dnsmasq which nameservers to use for global lookups.

Example resolvconf.conf for dnsmasq:

nameservers=127.0.0.1

dnsmasq_conf=/etc/dnsmasq-conf.conf

dnsmasq_resolv=/etc/dnsmasq-resolv.conf

Example dnsmasq.conf:

listen-address=127.0.0.1

conf-file=/etc/dnsmasq-conf.conf

resolv-file=/etc/dnsmasq-resolv.conf

named_options

Include this file in the named options block. This file tells named which nameservers to use for global lookups.

named_zones

Include this file in the named global scope, after the options block. This file tells named which nameservers to use for specific domains.

Example resolvconf.conf for named:

nameservers=127.0.0.1

named_options=/etc/named-options.conf

named_zones=/etc/named-zones.conf

Example named.conf:

options {

listen-on { 127.0.0.1; };

include /etc/named-options.conf

;

};

include /etc/named-zones.conf

;

pdnsd_conf

This is the main pdnsd configuration file which we modify to add our forward domains to. If this variable is not set then we rely on the pdnsd configuration file setup to read pdnsd_resolv as documented below.

pdnsd_resolv

This file tells pdnsd about global nameservers. If this variable is not set then it's written to pdnsd_conf.

Example resolvconf.conf for pdnsd:

nameservers=127.0.0.1

pdnsd_conf=/etc/pdnsd.conf

# pdnsd_resolv=/etc/pdnsd-resolv.conf

Example pdnsd.conf:

global {

server_ip = 127.0.0.1;

status_ctl = on;

}

server {

# A server definition is required, even if emtpy.

label="empty";

proxy_only=on;

# file="/etc/pdnsd-resolv.conf";

}

unbound_conf

This file tells unbound about specific and global nameservers.

Example resolvconf.conf for unbound:

nameservers=127.0.0.1

unbound_conf=/etc/unbound-resolvconf.conf

Example unbound.conf:

include: /etc/unbound-resolvconf.conf

resolv.conf(5) and resolvconf(8).

Roy Marples ⟨roy@marples.name⟩

Please report them to http://roy.marples.name/projects/openresolv