ZaphodB
  • Member for 12 years, 8 months
  • Last seen more than a week ago
How to use another IP-address for outgoing traffic?
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4 votes

Most networking related tools like ping will have an option to select the source IP they will use for outgoing connections, so for example with ping you can use ping -I IP-B. For all traffic to use ...

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What does 3Ware's tw_cli mean by a "DEGRADED" disk vs "ECC-ERROR"?
4 votes

I have never experienced a physical drive (p0) to go into status DEGRADED, however you might be able to get back the ECC-ERROR drive or even the DEGRADED drive by removing them via /c0 p1 remove and ...

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PowerDNS, updating serial
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4 votes

Alex and Roland, with the gmysql backend or any other RDBMS backend you do not need to issue any reload commands, PowerDNS will know the zone has changed by looking at the serial value in the ...

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LACP - Load Balancing Network 2Gbit Ubuntu
3 votes

The following configuration works for me. The essential part is bond-xmit-hash-policy layer3+4 which controls the interface hashing policy for transmit packets. https://www.kernel.org/doc/...

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PowerDNS Split Horizon Resolver
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3 votes

Neither PowerDNS Server nor Recursor support the split-horizon setups in the way BIND does. You can work around it by for example running Lua code in your recursor that directly provides the answers ...

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PowerDNS Master Slave Transfer method
3 votes

Documentation says "Native replication is the default, unless other operation is specifically configured." ( http://doc.powerdns.com/html/replication.html ) By Native it is referring to a replication ...

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I've inherited a rat's nest of cabling. What now?
3 votes

I think nobody mentioned this yet: I would ask my boss whether we could get a full new round of equipment to replace the old installation in new racks. Depending on its age that might even be cost ...

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FOSS DNS Server with API?
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3 votes

I have not tried any of them but there are some FOSS API around for PowerDNS. http://doc.powerdns.com/ http://kennethkalmer.github.com/powerdns-on-rails/ https://github.com/devel/PowerDNS-API#...

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Get all DNS records on remote server?
3 votes

Try Zonetransfer on unix shell: $ dig axfr sld.tld. @nameserver get a list of nameservers delegated for your zone: $ dig soa sld.tld. +trace

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DNS: how to get local server to superimpose results over authoritative server?
Accepted answer
2 votes

Actually if i had to do it i would use a Lua Script with the recursor that mangles with the data on postresolve. Hoever i really do recommend something different: Simply use a seperate authoritative ...

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Tracking DNS queries in PowerDNS
2 votes

As for the the pipe backend question: All backends are exhausted for queries in the order that they are given in the launch statement. As soon as a backend responds with data matching the query all ...

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Is there a difference between @ and * when using BIND?
2 votes

In addition to what Bill Weiss said i would like to point out that * means "all possible subdomains/labels except those already present", this means that i can have $ORIGIN EXAMPLE.NET. a IN A 1.2.3....

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Most resilient form of (private) DNS clustering?
2 votes

I run an internal BGP anycast recursive DNS Cluster on two Linux Virtual Server (IPVS) Loadbalancers and it works like a charm. The basic setup is described here: great: sorry, new users aren't ...

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Monitoring PowerDNS
1 votes

In addition to gather PowerDNS statistics via Munin and Collectd Plugins for example you can have them exported automatically to Graphite or just use PowerDNS "Graphing as a Service".

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PowerDNS second view
1 votes

PowerDNS Server does not support BIND9-style DNS "views". While the geobackend can be used to provide some of its functionality it is generally advised to split internal and external DNS resource ...

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Can PowerDNS resolve non standard TLDs?
1 votes

Technically you can add any domain names that you like to the PowerDNS authoritative server and it will serve those records. However as non-standard TLDs are not delegated in DNS by the root ...

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Why is this iptables file line failing in CentOS 6
1 votes

In general it pays to add rules via iptables and then dump them to a file with iptables-save in case you want to use to load them again via iptables-restore for example when your system restarts ...

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How can I make a high available tomcat cluster with no single point of failure?
1 votes

You can use a cluster of two machines that can each run a tomcat instance behind apache. http://www.linux-ha.org/doc/users-guide/users-guide.html I would suggest a simple failover design where both ...

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powerdns with mysql backend : Unable to connect to database: Access denied for user
1 votes

Well if PowerDNS says it is unable to connect that's usually just it. Did you grant it permission in mysql and issue "flush privileges;"? Do you have this for all backend instances (default with ...

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how to resolve all externally unresolved DNS queries?
1 votes

On Debian apt-get install pdns-recursor will probably provide what you want. The recursor will bind to 127.0.0.1 and only listen there by default so you will be fine regarding protection against the ...

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Dig returns "status: REFUSED" for external queries?
1 votes

NOERROR when it is not accompanied by a resource record (RR) means that there is no such record, so when you get a NOERROR response and no 'record' upon setting "version" to "none" then it is working ...

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cannot ping link-local address from other subnet when defaut gateway route is seted
0 votes

Your Firewall does not seem to know about the network 192.168.1.6 is in icmp redirects are not accepted. Try adding a route to 192.168.1.0/24 (presumably) dev eth0 on raspi which should make testcase-...

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PowerDNS, returns SOA record only
0 votes

You did not specify which PowerDNS backend you used. The @ syntax as mentioned by several people here does only work with the bind backend that uses BIND-style zonefiles. If you used for example ...

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Why is Perl Cgiwrap Sock refusing connection to nginx?
0 votes

I haven't experience the Connection refused yet but my guess would be that the nginx process does not have the user rights to write to /var/run/nginx/cgiwrap-dispatch.sock, check the file permissions ...

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Powerdns not using packetcache
0 votes

I am not sure what your benchmark tests for but if you have packet cache hits and a packet cache size of 0 that might imply that all of the queries so far were for non existent records i.e. those that ...

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IPvsadm not equally balancing on wlc scheduler
0 votes

Judging by your number of connections it is probably not an issue for you but you might get uneven distribution with least connections if one of the real servers is slower responding than the others, ...

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Enterprise Redirection Services?
0 votes

You can google for GSLB aka Global Server Loadbalancing which is the DNS 'Trickery' Option and also what akamai and wikipedia use. Look at http://wiki.powerdns.com/trac/browser/trunk/pdns/modules/...

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DNS something is wrong?
0 votes

with an empty cache a server will do something quite similar to what the output of dig a www.google.com +trace will show you. Additionally ping does make a reverse (PTR) record lookup to show you ...

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Desert Island Tools?
0 votes

lsof ps ls vi ip

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How to know if a DNS update is taking too long?
0 votes

What happens when you transfer domains between registrars is up to regulations for the TLD or Registry, it might just be that your new registrar is not in possession of the old DNS records anymore and ...

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