pdnsd安装

注意，仅供参考！

###包的下载界面
https://archlinux.org/packages/extra/x86_64/pdnsd/

###包的下载链接
https://archlinux.thaller.ws/extra/os/x86_64/pdnsd-1.2.9.a-14-x86_64.pkg.tar.zst

#########具体安装执行步骤#########

cp usr/bin/* /usr/bin/

cp usr/lib/systemd/system/pdnsd.service /usr/lib/systemd/system/

###CentOS
cp usr/lib/tmpfiles.d/pdnsd.conf /usr/lib/tmpfiles.d/

###Ubuntu
cp usr/lib/sysusers.d/pdnsd.conf /usr/lib/sysusers.d/


mkdir /usr/share/doc/pdnsd/
cp usr/share/doc/pdnsd/pdnsd.conf /usr/share/doc/pdnsd/pdnsd.conf

cp usr/share/doc/pdnsd/pdnsd.conf /etc

mkdir /var/cache/pdnsd/

###############################


/etc/pdnsd.conf文件里的内容：
###############################
global {
        perm_cache=1024;
        cache_dir="/var/cache/pdnsd";
        run_as="root";
        server_ip = ens192;  # Use eth0 here if you want to allow other
                                # machines on your network to query pdnsd.
        status_ctl = on;
                           # but may make pdnsd less efficient, unfortunately.
        query_method=tcp_only;
        min_ttl=15m;       # Retain cached entries at least 15 minutes.
        max_ttl=1w;        # One week.
        timeout=10;        # Global timeout option (10 seconds).
        neg_domain_pol=on;
        udpbufsize=1024;   # Upper limit on the size of UDP messages.
}
server {
        label= "myisp";
        ip = 114.114.114.114;  # Put your ISP's DNS-server address(es) here.
                           # This may be necessary if you are behind some
                           # kind of firewall and cannot receive replies
                           # from outside name servers.
        timeout=4;         # Server timeout; this may be much shorter
                           # that the global timeout option.
        uptest=if;         # Test if the network interface is active.
        interface=ens192;    # The name of the interface to check.
        interval=10m;      # Check every 10 minutes.
        purge_cache=off;   # Keep stale cache entries in case the ISP's
                           # DNS servers go offline.
        edns_query=yes;    # Use EDNS for outgoing queries to allow UDP messages
                           # larger than 512 bytes. May cause trouble with some
                           # legacy systems.
}
###############################


systemctl start pdnsd.service