Re: NS ROOT queries to root servers

2018-01-19 Thread Tony Finch
Medina, Antonio wrote: > > We have noticed that each query forwarded towards root servers creates > an extra NS ROOT query. This is due to a long-standing bug which was recently fixed. You need change number 4770 - see https://source.isc.org/cgi-bin/gitweb.cgi?p=bind9.git;a=blob;f=CHANGES;hb=v9_9

Update ACLs dynamically

2018-01-19 Thread Anvar Kuchkartaev via bind-users
Hello I would like to know if it is possible to add or remove IP addresses to bind acl list without service restart?Anvar Kuchkartaev an...@aegisnet.eu  ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bi

Re: Update ACLs dynamically

2018-01-19 Thread Anand Buddhdev
Hi Anvar, Yes, you can change ACLs in named.conf, and then run "rndc reconfig" which will pick up the changes. You don't need to restart BIND. Regards, Anand On 19/01/2018 14:48, Anvar Kuchkartaev via bind-users wrote: > Hello I would like to know if it is possible to add or remove IP addresses

Re: intermittent SERVFAIL for high visible domains such as *.google.com

2018-01-19 Thread Brian J. Murrell
On Thu, 2018-01-18 at 17:46 +, Tony Finch wrote: > Brian J. Murrell wrote: > > On Thu, 2018-01-18 at 15:41 +, Tony Finch wrote: > > > > > > The default is 10 minutes - try reducing it and see if the outage > > > becomes shorter. > > > > If it does, what is that telling me? > > My hypothes

Re: intermittent SERVFAIL for high visible domains such as *.google.com

2018-01-19 Thread Tony Finch
Brian J. Murrell wrote: > > Am I interpreting this correctly? If so, why would these queries come > back with responses with no answers? Those responses look like referrals from the root servers to the .com servers; I would expect you to see `named` repeating the queries as it follows the iterat

Re: intermittent SERVFAIL for high visible domains such as *.google.com

2018-01-19 Thread Brian J. Murrell
On Fri, 2018-01-19 at 14:54 +, Tony Finch wrote: > > Those responses look like referrals from the root servers to the .com > servers; Ahhh. Right. That makes sense. > I would expect you to see `named` repeating the queries as it > follows the iterative resolution algorithm. Indeed. I wil

Re: intermittent SERVFAIL for high visible domains such as *.google.com

2018-01-19 Thread Tony Finch
Brian J. Murrell wrote: > > So, between that initial: > > 19-Jan-2018 09:06:18.893 resquery 0x7f1010f3bd90 (fctx > 0x7f1010f23d90(www.google.com/A)): response > > is just the referrals to .com for that query and the referrals to .com > for the subsequent ns[1-4].google.com queries before we get t

Re: intermittent SERVFAIL for high visible domains such as *.google.com

2018-01-19 Thread Brian J. Murrell
On Fri, 2018-01-19 at 15:22 +, Tony Finch wrote: > > You don't have any weird middleboxes between your resolver and the > Internet, do you? I don't believe so. Not entirely sure what "weird middleboxes" refers to in this context though. And by resolver are you referring to my BIND9 server o

9.11 can't validate sss.gov

2018-01-19 Thread Timothy A. Holtzen
I've run into an odd problem.  On the same host with nearly identical configurations.  Bind 9.10.6 can resolve and DNSSEC validate sss.gov but Bind 9.11.2 cannot.  If I turn off DNSSEC validation 9.11.2 resolves it just fine.  According to http://dnsviz.net/d/sss.gov/dnssec/ it looks like the the d

Re: 9.11 can't validate sss.gov

2018-01-19 Thread Tony Finch
Timothy A. Holtzen wrote: > I've run into an odd problem.  On the same host with nearly identical > configurations.  Bind 9.10.6 can resolve and DNSSEC validate sss.gov but > Bind 9.11.2 cannot. Ah, this is because sss.gov is hosted on Qwest's DNS servers that have broken EDNS logic which is inc

Re: Update ACLs dynamically

2018-01-19 Thread Anvar Kuchkartaev via bind-users
But if you have more than 1000 client ip addresses which dynamically added and removed to acl will rndc reconfig not take too much performance? Anvar Kuchkartaev  an...@aegisnet.eu    Original Message   From: Anand Buddhdev Sent: viernes, 19 de enero de 2018 14:53 To: Anvar Kuchkartaev; bind-user

Re: Update ACLs dynamically

2018-01-19 Thread Matus UHLAR - fantomas
On 19.01.18 19:26, Anvar Kuchkartaev via bind-users wrote: But if you have more than 1000 client ip addresses which dynamically added and removed to acl will rndc reconfig not take too much performance? yes, it will. If you have that much clients, either authentize them via TSIG or let them us

Re: [ASK] Block Malware Generate Random Subdomain, Domain and TLD

2018-01-19 Thread Syaifudin
Hi Daniel thank you very much for your answer. i want ask much more but my english not good so once again thank you very much. -- Sent from: http://bind-users-forum.2342410.n4.nabble.com/ ___ Please visit https://lists.isc.org/mailman/listinfo/bind-u

Re: 9.11 can't validate sss.gov

2018-01-19 Thread Mark Andrews
Yes, qwest were informed years ago that there severs are broken. Report this to the .gov site operators. The servers return BADVERS to the queries which was never part of the EDNS spec and is a invention of the servers developers. FORMERR was permissible by STD13 but this was tightened when th

Re: [ASK] Block Malware Generate Random Subdomain, Domain and TLD

2018-01-19 Thread Josh Kuo
You might want to check out the free service offered by Quad Nine (9.9.9.9), they use RPZ in the backend to filter out known malicious domain names. I do not know if they can filter out malware-related names. On Sat, Jan 20, 2018 at 7:02 AM Syaifudin wrote: > Hi Daniel > > thank you very much fo

Re: [ASK] Block Malware Generate Random Subdomain, Domain and TLD

2018-01-19 Thread Syaifudin JW
As i know RPZ is usefull for random subdomain. So we can respon it localy. But if request with random sub domain, random domain and random tld its imposible to use RPZ. Dns server will check to root server. For now i still use iptables with regex to block that request so request not to dns but drop

No more idea about loging...?

2018-01-19 Thread Pierre Couderc
On 01/18/2018 05:48 PM, Pierre Couderc wrote: On 01/18/2018 01:01 PM, Anand Buddhdev wrote: I don't know what the function "isc_file_isplainfile" checks for, but perhaps the executable bits on the file are causing the failure. Log files shouldn't be executable, so you normally need mode 0644