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Diffstat (limited to '')
| -rw-r--r-- | man7/hostname.7 | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/man7/hostname.7 b/man7/hostname.7 index 60940ba..58d00d1 100644 --- a/man7/hostname.7 +++ b/man7/hostname.7 @@ -8,14 +8,14 @@ .\" .\" 2008-06-11, mtk, Taken from FreeBSD 6.2 and modified for Linux. .\" -.TH hostname 7 2022-10-30 "Linux man-pages 6.05.01" +.TH hostname 7 2023-11-11 "Linux man-pages 6.7" .SH NAME hostname \- hostname resolution description .SH DESCRIPTION Hostnames are domains, where a domain is a hierarchical, dot-separated list of subdomains; for example, the machine "monet", in the "example" subdomain of the "com" domain would be represented as "monet.example.com". -.PP +.P Each element of the hostname must be from 1 to 63 characters long and the entire hostname, including the dots, can be at most 253 characters long. Valid characters for hostnames are @@ -30,24 +30,24 @@ to .IR 9 , and the hyphen (\-). A hostname may not start with a hyphen. -.PP +.P Hostnames are often used with network client and server programs, which must generally translate the name to an address for use. (This task is generally performed by either .BR getaddrinfo (3) or the obsolete .BR gethostbyname (3).) -.PP +.P Hostnames are resolved by the NSS framework in glibc according to the .B hosts configuration in -.BR nsswitch.conf . +.BR nsswitch.conf (5). The DNS-based name resolver (in the .B dns NSS service module) resolves them in the following fashion. -.PP +.P If the name consists of a single component, that is, contains no dot, and if the environment variable .B HOSTALIASES @@ -60,11 +60,11 @@ to be substituted for that alias. If a case-insensitive match is found between the hostname to be resolved and the first field of a line in the file, the substituted name is looked up with no further processing. -.PP +.P If the input name ends with a trailing dot, the trailing dot is removed, and the remaining name is looked up with no further processing. -.PP +.P If the input name does not end with a trailing dot, it is looked up by searching through a list of domains until a match is found. The default search list includes first the local domain, @@ -84,11 +84,11 @@ by a system-wide configuration file (see .BR resolver (5), .BR mailaddr (7), .BR named (8) -.PP +.P .UR http://www.ietf.org\:/rfc\:/rfc1123.txt IETF RFC\ 1123 .UE -.PP +.P .UR http://www.ietf.org\:/rfc\:/rfc1178.txt IETF RFC\ 1178 .UE |