Sometimes there are users who wonder about when name resolutions/DNS queries are done, so let's add that for completeness. Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxx> --- ip6tables.8.in | 10 ++++++---- iptables.8.in | 8 +++++--- 2 files changed, 11 insertions(+), 7 deletions(-) diff --git a/ip6tables.8.in b/ip6tables.8.in index 66d8543..5688133 100644 --- a/ip6tables.8.in +++ b/ip6tables.8.in @@ -240,10 +240,12 @@ option is omitted. .TP [\fB!\fP] \fB\-s\fP, \fB\-\-source\fP \fIaddress\fP[\fB/\fP\fImask\fP] Source specification. -\fIAddress\fP can be either a hostname (please note that specifying -any name to be resolved with a remote query such as DNS is a really bad idea), -a network IPv6 address (with \fB/\fP\fImask\fP), or a plain IPv6 address. -(the network name isn't supported now). +\fIAddress\fP can be either be a hostname, +a network IP address (with \fB/\fP\fImask\fP), or a plain IP address. +Names will be resolved once only, before the rule is submitted to the kernel. +Please note that specifying any name to be resolved with a remote query such as +DNS is a really bad idea. +(Resolving network names is not supported at this time.) The \fImask\fP is a plain number, specifying the number of 1's at the left side of the network mask. A "!" argument before the address specification inverts the sense of diff --git a/iptables.8.in b/iptables.8.in index 928f46a..d29deb2 100644 --- a/iptables.8.in +++ b/iptables.8.in @@ -239,9 +239,11 @@ option is omitted. .TP [\fB!\fP] \fB\-s\fP, \fB\-\-source\fP \fIaddress\fP[\fB/\fP\fImask\fP][\fB,\fP\fI...\fP] Source specification. \fIAddress\fP -can be either a network name, a hostname (please note that specifying -any name to be resolved with a remote query such as DNS is a really bad idea), -a network IP address (with \fB/\fP\fImask\fP), or a plain IP address. +can be either a network name, a hostname, a network IP address (with +\fB/\fP\fImask\fP), or a plain IP address. Hostnames will +be resolved once only, before the rule is submitted to the kernel. +Please note that specifying any name to be resolved with a remote query such as +DNS is a really bad idea. The \fImask\fP can be either a network mask or a plain number, specifying the number of 1's at the left side of the network mask. -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
