08-19-2011
It means what it says. It can't find that host name.
The server itself may still be fine, but for some reason you can't look up it's domain name. Perhaps you're having problems with your DNS server, perhaps someone forgot to add a line to /etc/hosts, or perhaps it just expired. Which one applies to you depends on your DNS setup.
6 More Discussions You Might Find Interesting
1. IP Networking
I just moved a dedicated server, which included moving to a new subnet, and new IP address. Now my server is not reconnecting - I've tried ifconfig, altering the etc/hosts file with the new ip address, with no luck. (5 Replies)
Discussion started by: esmerika
5 Replies
2. Emergency UNIX and Linux Support
Hi guys.
I am gonna buy a dedicated server and make it a public mirror for some distributions.
but how much RAM, Hard Disk, Band Width, ... will suffice? It will be a mirror for CentOS and Ubuntu both. (3 Replies)
Discussion started by: majid.merkava
3 Replies
3. UNIX for Advanced & Expert Users
Hi,
Any one please suggest me the best mysql, apache settings for the given below scenario.
My Server config:
Intel(R) Xeon(R) CPU E5504 @ 2.00GHz
8GB RAM
300GB HDD
Website:
It's a famous wordpress blog
Mysql DB size: 235MB
Expectations:
Server should be handle 600+ concurrent... (0 Replies)
Discussion started by: chandranjoy
0 Replies
4. Emergency UNIX and Linux Support
Hi all,
I installed centos 5, with LAMP.
httpd is working fine, ssh, ftp all working ok.
But, when I try to use mysql its not,
when I give the command
mysql
I get
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) (4 Replies)
Discussion started by: lawstudent
4 Replies
5. Ubuntu
hi,
I am newbie and I think I am trying to bit off more than I could chew in this field. I would like to know if virtualization with Vmware Citrix on a dedicated server under ubuntu 64bit is simple.
I looked up in the board with keyword "virtualization, vmware, dedicated" but replied threads are... (2 Replies)
Discussion started by: baris35
2 Replies
6. UNIX for Dummies Questions & Answers
Hi there,
I have a dedicated server that sends mail with own smtp (obviously).
On this server I have a web platform for music artists that allows entries for each enrollment and sends confirmation e-mails and so on ...
Now I have purchased a service smtp (like those of smtp.com) because I... (3 Replies)
Discussion started by: colorsthink
3 Replies
LEARN ABOUT DEBIAN
testmxlookup
TESTMXLOOKUP(1) Double Precision, Inc. TESTMXLOOKUP(1)
NAME
testmxlookup - Look up mail relays for a domain
SYNOPSIS
testmxlookup [@ip-address] [--dnssec] [--udpsize n] {domain}
DESCRIPTION
testmxlookup lists the names and IP addresses of mail relays that receive mail for the domain. This is useful in diagnosing mail delivery
problems.
testmxlookup sends a DNS MX query for the specified domain, followed by A/AAAA queries, if needed. testmxlookup lists the hostname and the
IP address of every mail relay, and its MX priority.
DIAGNOSTICS
The error message "Hard error" indicates that the domain does not exist, or does not have any mail relays. The error message "Soft error"
indicates a temporary error condition (usually a network failure of some sorts, or the local DNS server is down).
OPTIONS
@ip-address
Specify the DNS server's IP address, where to send the DNS query to, overriding the default DNS server addresses read from
/etc/resolv.conf.
"ip-address" must be a literal, numeric, IP address.
--dnssec
Enable the DNSSEC extension. If the DNS server has DNSSEC enabled, and the specified domain's DNS records are signed, the list of IP
addresses is suffixed by "(DNSSEC)", indicating a signed response.
This is a diagnostic option. Older DNS servers may respond with an error, to a DNSSEC query.
--udpsize n
Specify that n is the largest UDP packet size that the DNS server may send. This option is only valid together with "--dnssec". If
"--dnssec" always returns an error, try "--udpsize 512" (the default setting is 1280 bytes, which is adequate for Ethernet, but other
kinds of networks may impose lower limits).
SEE ALSO
courier(8)[1], RFC 1035[2].
AUTHOR
Sam Varshavchik
Author
NOTES
1. courier(8)
[set $man.base.url.for.relative.links]/courier.html
2. RFC 1035
http://www.rfc-editor.org/rfc/rfc1035.txt
Courier Mail Server 11/18/2011 TESTMXLOOKUP(1)