Package: isc-dhcp-server
Version: 4.3.5-3+b2
Severity: wishlist
Tags: upstream
DHCP clients often send hostnames with characters not allowed in DNS such as
spaces.
dhcp-eval should provide a way to rewrite those via hardcoded mechanism (e.g
translate all invalid characters to '-'), or patsubst/regex, or even by
evaluating stdout of execute()
Currently, the only option is something like this:
if not (option host-name ~~ "^[a-z0-9][a-z0-9\-]+[a-z0-9]$") {
set new_host-name = concat("host-", binary-to-ascii(16, 8, "",
substring(hardware, 1, 6)));
log(concat("invalid hostname: ", option host-name, " => ",
new_host-name));
ddns-hostname = new_host-name;
}
which obscures the real DHCP hostname completely.
-- System Information:
Debian Release: buster/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500,
'unstable'), (1, 'experimental-debug')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.14.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages isc-dhcp-server depends on:
ii debconf [debconf-2.0] 1.5.65
ii debianutils 4.8.3
ii libc6 2.25-5
ii libdns-export169 1:9.11.2+dfsg-5
ii libirs-export160 1:9.11.2+dfsg-5
ii libisc-export166 1:9.11.2+dfsg-5
ii lsb-base 9.20170808
Versions of packages isc-dhcp-server recommends:
ii isc-dhcp-common 4.3.5-3+b2
ii policycoreutils 2.7-1
Versions of packages isc-dhcp-server suggests:
pn isc-dhcp-server-ldap <none>
ii policykit-1 0.105-18
-- Configuration Files:
/etc/dhcp/dhcpd.conf changed [not included]
-- debconf information excluded
