alter_domain (7)     - (unknown subject)
avahi-browse-domains (1) - Browse for mDNS/DNS-SD services using the Avahi da...
bind_textdomain_codeset (3) - set encoding of message translations
bindtextdomain (3)   - set directory containing message catalogs
crda (8)             - send to the kernel a wireless regulatory domain for a ...
create_domain (7)    - (unknown subject)
dnsdomainname (1)    - show the system's DNS domain name
domainname (1)       - show or set the system's NIS/YP domain name
drop_domain (7)      - (unknown subject)
getdomainname (2)    - get/set domain name
idn (1)              - Internationalized Domain Names command line tool
IO::Socket::INET (3pm) - Object interface for AF_INET domain sockets
IO::Socket::INET6 (3pm) - Object interface for AF_INET|AF_INET6 domain sockets
IO::Socket::UNIX (3pm) - Object interface for AF_UNIX domain sockets
ldns-mx (1)          - print out the mx record(s) for a domain
ldns-nsec3-hash (1)  - print out the NSEC3 hash for a domain name
ldns_dname_is_subdomain (3) - (unknown subject)
Mail::DKIM (3pm)     - Signs/verifies Internet mail with DKIM/DomainKey signa...
Mail::DKIM::AuthorDomainPolicy (3pm) - represents an Author Domain Signing Pr...
Mail::DKIM::DkPolicy (3pm) - represents a DomainKeys Sender Signing Policy re...
Mail::DKIM::DkSignature (3pm) - represents a DomainKeys-Signature header
Mail::SpamAssassin::Util::RegistrarBo... (3pm) - domain delegation rules
named (8)            - Internet domain name server
Net::Domain (3pm)    - Attempt to evaluate the current host's internet name a...
nfs4_uid_to_name (3) - ID mapping routines used for NFSv4
nisdomainname (1)    - show or set the system's NIS/YP domain name
perlapollo (1)       - Perl version 5 on Apollo DomainOS
personality (2)      - set the process execution domain
res_querydomain (3)  - resolver routines
setdomainname (2)    - get/set domain name
setregdomain (1)     - set regulatory domain based on timezone
sys_un.h (0p)        - definitions for UNIX domain sockets
textdomain (3)       - set domain for future gettext() calls
un.h (0p)            - definitions for UNIX domain sockets
ypdomainname (1)     - show or set the system's NIS/YP domain name