Re: Queries regarding forwarders

2018-10-24 Thread Grant Taylor via bind-users
On 08/09/2018 01:01 AM, Lee wrote: it does, so you have to flag your local zones as rpz-passthru. Thank you again Lee. You gave me exactly what I needed and wanted to know. I finally got around to configuring my RPZ to filter IPv4 Special-Purpose Address Registry as per IANA's definition.

Re: Question about visibility

2018-10-24 Thread Dave Warren
On 2018-10-24 07:24, Timothy Metzinger wrote: There's no security in obscurity.  Automated port scanners will sweep your system in a couple of seconds. There is *limited* security in obscurity but it's a valid layer. Obviously insufficient as an only layer... As a trivial example, I get

Re: Question about visibility

2018-10-24 Thread Grant Taylor via bind-users
On 10/24/2018 07:24 AM, Timothy Metzinger wrote: There's no security in obscurity. Obscurity by itself is not security. Obscurity can be one many layers of security. Automated port scanners will sweep your system in a couple of seconds. Yes, automated scanners can scan all the ports on a

Re: Question about visibility

2018-10-24 Thread Grant Taylor via bind-users
On 10/24/2018 06:15 AM, G.W. Haywood via bind-users wrote: A server on a non-standard port is often neglected.  Its security may be less well maintained than one that is intentionally public. Why and how do you make that correlation? Are you implying that some people think that because

RE: Question about visibility

2018-10-24 Thread John W. Blue
I agree on using non-standard ports as well. Moving SSH to a non-standard port is a perfect example of how to actually ID bad actors. It follows that any host connecting to 22 is clearly traffic that needs to be dropped and blocked. And if that host is blocked then any other connections it

Re: resolve - send query via specific network device

2018-10-24 Thread Grant Taylor via bind-users
On 10/24/2018 03:58 AM, Matus UHLAR - fantomas wrote: It uses routing tables to decide this, so you can force it to use alternative route. It's also possible to use the routing table to specify which source IP is used for a given route. This is handy to specify the source IP to use if you

Re: Question about visibility

2018-10-24 Thread Paul Kosinski
Maybe port scanners will find open ports pretty quickly, but I've found that using non-standard ports is helpful in reducing traffic, at least. For example, SSH on port 22 gets lots of SYNs but moving it elsewhere, and making 22 totally unresponsive discourages most such attempts. This increases

Re: Question about visibility

2018-10-24 Thread Timothy Metzinger
There's no security in obscurity. Automated port scanners will sweep your system in a couple of seconds. Tim Metzinger From: bind-users on behalf of G.W. Haywood via bind-users Sent: Wednesday, October 24, 2018 12:15:10 PM To: bind-users@lists.isc.org Subject: Re: Question about visibility

Re: Question about visibility

2018-10-24 Thread G.W. Haywood via bind-users
Hi there, On Wed, 24 Oct 2018, Hardy, Andrew wrote: Further to the original post, as well as not creating a DNS record and "possibly" adding robot.txt with appropriate content, as discussed, I presume that if I run the http server on a personally selected unprivileged port then it is very

Re: Question about visibility

2018-10-24 Thread Hardy, Andrew
Further to the original post, as well as not creating a DNS record and "possibly" adding robot.txt with appropriate content, as discussed, I presume that if I run the http server on a personally selected unprivileged port then it is very "unlikely" the site pages will be indexed/discovered/etc

Re: Understanding TTL in "rndc dumpdb"-output

2018-10-24 Thread Michał Kępień
> I've checked the serve-stale status, which is currently off. > # rndc serve-stale status > _default: off (stale-answer-ttl=1 max-stale-ttl=604800) > _bind: off (stale-answer-ttl=1 max-stale-ttl=604800) > > Is this a normal behavior, that in the "rndc dumpdb" nevertheless the TTL in > the form

Re: resolve - send query via specific network device

2018-10-24 Thread Tony Finch
Stern, Eli wrote: > Using the client side of Bind in a similar manner to the "resolve" > sample (resolve.c). > > How does one force the queries to be sent via a specific network device? Look at the -b option in `lib/sample/resolve.c`. Tony. -- f.anthony.n.finchhttp://dotat.at/ Rockall,

Re: resolve - send query via specific network device

2018-10-24 Thread Matus UHLAR - fantomas
On 24.10.18 09:47, Stern, Eli wrote: Using the client side of Bind in a similar manner to the "resolve" sample (resolve.c). How does one force the queries to be sent via a specific network device? E.g. using the "bind()" system call or ioctl(SO_BINDTODEVICE)? you can only configure outgoing

resolve - send query via specific network device

2018-10-24 Thread Stern, Eli
Using the client side of Bind in a similar manner to the "resolve" sample (resolve.c). How does one force the queries to be sent via a specific network device? E.g. using the "bind()" system call or ioctl(SO_BINDTODEVICE)? OS: Linux.