similar to: how do I find out which nameserver returns a DNS query?

Hi all, I see centos 3.5Beta in the beta.centos.org. Is this the next release of version 3 ? Strangely, 3.4 is not the final release of version 3 ? Thx Ceg Ryan

Hello List, I am facing a probelm whereby my Samba4 internal DNS does not resolve external addresses: # host www.google.com Host www.google.com not found: 3(NXDOMAIN) The answer is immediate - so there's no timeout issue here. Internal resolution as described in the wiki to test the Samba AD DNS functions like host -t SRV _kerberos._udp.samba.mydomain.com host -t SRV

Hello everyone - I run bind version 9.8.2 on CentOS 6.5. The daily logwatch run sends me the following items. Are any of these a real problem? ============ checkhints: extra NS 'A.ROOT-SERVERS.NET' in hints: 170 Time(s) checkhints: extra NS 'B.ROOT-SERVERS.NET' in hints: 170 Time(s) checkhints: extra NS 'C.ROOT-SERVERS.NET' in hints: 170 Time(s)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hey, I am trying to get spf working and it just doesn't want to take. On my Tiny/DJB server it was easy. Anyway here is my entry. $ORIGIN net. itadmins 14400 IN SOA ns1.itadmins.net. hostmaster.itadmins.net. ( 2012102201 16384 2048 1048576 2560 ) 14400 IN A 178.15.51.221 14400 IN

------------ Original Message ------------ > Date: Saturday, July 01, 2017 10:57:42 +0100 > From: Pete Biggs <pete at biggs.org.uk> > Subject: Re: [CentOS] Physically moving a mail server vs. cached DNS > > On Sat, 2017-07-01 at 11:37 +0200, Nicolas Kovacs wrote: >> Le 01/07/2017 ? 11:00, Pete Biggs a ?crit : >> > That is controlled by the TTL (time to live)

I am having a mail server problem where the mail to one domain is being sent to the wrong server. When I use "dig masonc.com mx", I get ;; ANSWER SECTION: masonc.com. 86400 IN MX 5 mail.masonc.com. ;; AUTHORITY SECTION: masonc.com. 86400 IN NS ns1.picadoo.com. masonc.com. 86400 IN NS ns2.picadoo.com. ;;

We upgraded to NSD 3.2.9 (from 3.2.8) because we encountered the problem "Fix denial of existence response for empty non-terminal that looks like a NSEC3-only domain (but has data below it)." (a nasty problem with DNSSEC). But we now have IXFR issues. On one name server, NSD 3.2.9 works fine, zones are IXFRed and work. On another name server, with much more zones (and big ones), we

Hey all, For the last 8 months I have been running a postfix / mail scanner setup based on Johnny Hughes' excellent tutorial. For the firs 7 months I have had no issues. This past month I have been having instances where the user gets an smtp error while trying to send email. Restarting the postfix service is all it takes to resolve this issue. The problem is that it has begun to occur

It looks like someone pooched a domain transfer, and the whois entry for centos.org is missing its NS records. I've sent an email to the whois tech contact @redhat, but I'm sending this to the list to hopefully bring it to someone else's attention, as well. Hopefully it gets gets out before my mailserver expires its DNS cache for centos.org. Expect centos.org to be offline for a bit

On 6/17/2014 9:36 PM, Devin Reade wrote: > It looks like someone pooched a domain transfer, and the whois entry > for centos.org is missing its NS records. I've sent an email to the > whois tech contact @redhat, but I'm sending this to the list to hopefully > bring it to someone else's attention, as well. > > Hopefully it gets gets out before my mailserver expires

Dear All I have a CentOS 6.3 machine. I am trying to setup DNS BIND setup in that machine. It is having a static global IP. I have done lot of reading , google search and tried all possible option, but still not able to resolve the issue. My named.conf looks as below. * * * // named.conf // // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS // server as a caching only

Hi, I have a problematic CentOS XEN server and hope someone could point me in the right direction to optimize it a bit. The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can take, 1U chassis) on an Intel motherboard with a 1TB SATA HDD. dom0 is set to 512MB limit with a few small XEM VM's running: root at zaxen01:[~]$ xm list Name ID

https://bugzilla.mindrot.org/show_bug.cgi?id=1667 Summary: sshd slow connect with 'UseDNS yes' Product: Portable OpenSSH Version: 5.2p1 Platform: All OS/Version: Linux Status: NEW Severity: major Priority: P2 Component: sshd AssignedTo: unassigned-bugs at mindrot.org ReportedBy:

Samba organizers might want to look into this: [ns1:~] dig 150.73.70.66.relays.osirusoft.com ; <<>> DiG 9.2.2 <<>> 150.73.70.66.relays.osirusoft.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28005 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 13 ;; QUESTION SECTION:

On Fri, 27 Aug 2010, Vagrant Cascadian wrote: > > ipconfig apparently assumes that the dhcp server's ip address is the > nameserver when dhcp gives it no nameservers, dhcp gives the nameserver > 0.0.0.0, or the nameservers are not ip addresses (i.e. ns1.example.org). > while these scenarios are probably not extremely common, i'm not sure > this is a good default with no

I'm a bit baffled by this and I'm looking for ideas... background: two DNS servers (ns1 & ns2)(64bit CentOS 5.8) one email server (64bit CentOS 5.8 & postfix 2.3.3) one nagios server (64bit CentOS 5.8 & nagios 3.3.1) situation: - all servers configured to use both DNS servers for lookups - ns1 server down for hardware problem - nagios alerts that smtp on email server taking

All: I'm posting this to FreeBSD-security (rather than FreeBSD-net) because the problems I'm seeing appear to have been caused by spyware, and because they constitute a possible avenue for denial of service on FreeBSD machines with default installs of the operating system. Several of the FreeBSD machines on our network began to act strangely during the past week. Some have started to

For the last few days I can not resolve voip-info.org from many DNS servers. It does resolve with some DNS servers but I suspect it may be related more to caching. Using the host command: host -a voip-info.org 130.179.16.23 Trying "voip-info.org" Using domain server: Name: 130.179.16.23 Address: 130.179.16.23#53 Aliases: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR,

Hello, I cannot call my server over the internet with SIP anymore. Even when I do a maximum logging on my firewall, I don't see packets coming from outside. I've tried it from an ekiga.net account and an sip2sip.info account. What could be wrong? I would expect incoming traffic on port 5060 UDP... The account is "paul at vandervlis.nl". This should connect trought DNS to the

I'm not sure why this started, but apparently I'm having a DNS problem. Yesterday mail started bouncing with this error: 450 Unable to find obrien-pifer.com I think the messages eventually get delivered, but not sure. I guess I'll see if this one makes the list. I checked my domain using http://www.checkdns.net/ and it gives me a couple warnings. One is that there's no MX