Reasons For Slow Resolving - VPS
Apr 17, 2008
I've got a VPS account & when I connect to sites on the VPS, more often than not the browser times out. I click again & the site comes through.
I use Firefox & have tried in other browsers with similar results.
The VPS has 384mb dedicated RAM, with 512mb burstable - not much I know but...
I was wondering about possible reasons - could it be simply not enough RAM, could it be a bottleneck with the hosting company, could it be a problem in the setting up of the nameservers? What would seem more likely?
It's a shame as the tech support have been superb but it's too risky to use for reselling.
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Oct 29, 2008
well i purchased a new dedicated server it has 4gb ddr2 ram and quad core Q6600 cpu.
and on 100mb shared. i havent even yet added any web site to it. but sometimes i get timeout when using whm. its hella slow :/ thats very strange and rare on new server.
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Feb 6, 2007
resolving speed on my server is slow (about to 30 seconds), what do you think about this problem.
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May 23, 2009
we got a server blacklisted because there was a script sending spam emails, ofcourse we got that removed and taken more measures, the problem is that many lists still have our ips blacklisted (4 days after the solution was given).
is there some kind of script or any service/website that can check my server's ips for being in any spam list and notify me everyday ?
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Aug 13, 2009
I'm a big fan of cPanel,
I have a basic site to build, maybe out of PHP ... but probably just XHTML/CSS. A few contact forms, etc.
I know that I will have a number of domains to forward as well.
I want to see what other issues people have had and try to make a good argument as to why they should switch.
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Oct 28, 2009
I'm trying to see what the most cost effective way of doing this is.
I basically want to separate our business IP and our mail IP's.
So if I'm browsing the internet I have the regular IP that Comcast sets us up with.
If I am doing any emails, basically having one computer that runs off a different IP address. So when we send emails from that computer it would have the different IP address.
I want to do it in the most safe and legal way possible.
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Sep 15, 2007
I installed status2k on my server and i am encountering this error.
Quote:
Warning: shell_exec() has been disabled for security reasons in /home/oxyhosts/public_html/status/includes/functions.php on line 455
You can take a look at the errors on http://tinyurl.com/264tot
I even tried disabling shell_exec and exec from php.ini but that too didnt resolve the issue.
Is there a way i can get this thing to run without / with enabling shell_exec?
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Nov 11, 2008
I've got 25 domains on a Virtuozzo/Plesk8.6/CentOS5 VPS. Each domain has one up-to-date install of WordPress, most have very little traffic (average 200mb per month), maybe 2 domains get 5-7gb traffic per month.
I monitor port 80 connections and rarely see more than 10 at a time.
That should in my opinion be no problem at all for a VPS with 768mb guaranteed ram and 2.4ghz cpu. I've got 30gb hard drive spare too.
But.... about 8 or 10 times a day it grinds to a complete halt: server load at 500-1000%, sites timing out, plesk takes 3mins to load, often I can't even connect with SSH, and the plesk web server, apache
INSERT INTO module_watchdog_sys_stat (time, type, value, service_id) VALUES(FROM_UNIXTIME(1226404705), 'MAINMEM_USAGE', 17472, 11);
80 seconds sounds like a huge amount of time for a MySQL insert to me! Does anyone know if this is likely to be the cause of my trouble? Some problem with Plesk and the database? Or could it be something else?
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Jul 15, 2008
We have a full rack of servers at an XO datacenter. Most of these servers consistently need to go out to the internet to retrieve various URLs. Essentially, the servers are spidering, like Google does.
Lately we have noticed that the DNS servers that XO provided, which are in the /etc/resolv.conf files for each server, have been randomly failing.
Is there any reason that I can't set the servers to go to the root and use that for DNS? I need to bypass the XO DNS servers some how.
One of the options that I am considering is setting up a dedicated server that can provide recursive DNS to my other servers and have that server ask the root DNS system for records when it is not in the cache.
The other option that I am considering is finding a company that I can buy the ability to do recursive dns on. The onyl one that I have found so far is DynDNS though, and I have been looking for about two hours.
[url]
If anyone can make any suggestions to how I can get around the XO issue I am having or provide suggestions to a provider of recursive DNS servers (not managed, unless recursive comes with it),
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May 1, 2009
my DNS stop resolving, once a day i need to restart the service in cpanel/whm , what can be done to prevent that ?
its a fresh vps only cpanel is there and 2 domains with no pages just a simple under costruction index page . in CSF i have a Your Score: 106/112 in security , it firewalled and hardened
right now is using 299 of ram out of 512 burstable to 768
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Mar 16, 2008
I'm using DirectAdmin as a CP on one of my server & recently I bought a new windows server with plesk as CP.
My DOMAIN is on my 1st server where i'm using Directadmin. I want to resolve my subdomain to my new server.
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May 23, 2008
i have a weird problem with dns bind. i just setup a zone file and it seems [url]works but [url]doesnt work. i have also created a cname for www but still not working.
here is my zone file
$ttl 38400
domain.com. IN SOA ns1.domain.com. webmaster.domain.com. (
1211542287
10800
3600
604800
38400 )
domain.com. IN A 67.223.229.117
ns1.domain.com. IN A 67.223.229.117
ns2.domain.com. IN A 66.249.8.117
domain.com. IN NS ns1.domain.com.
domain.com. IN NS ns2.domain.com.
www IN CNAME domain.com.
ftp IN CNAME domain.com.
mail IN MX 0 domain.com.
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Apr 7, 2008
I have a local server named as 'EPBX' which monitors the working of the telephone system and makes their log entries. Recently its HDD partition got crashed due to which it was formatted and had re-installed Windows server 2003 after which I am facing some problems as given below:
- The IP address assigned to this server is 192.168.100.2. I am able to ping the IP but unable to take the console of the software from some other local PC.
- Also when I try to trace the IP using the tracert command first it resolves to the ISP's router and then to the server. But the router is not at all asigned a local IP. I have assigned a global IP to it. (Screen shot of the same has been attached)
- It would be very difficult for me to change the IP address
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Nov 15, 2007
Just got set up with a new VPS and while looking to see if my IPs were blacklisted, I came across a RDNS warning. I've been on some form of shared hosting since I've been on the Internet, so much of the VPS stuff is new to me (though it is managed). Everything I've read says that RDNS is important for sending mail so the receiving end can verify where mail is coming from, but I thought I would ask here regarding my specific issue.
I've got four IPs on my account. The first ip, x.x.x.67, is the host IP(ie host.example.com). Most of my domains are using that IP at the moment since I just got set up, but I do have another domain on the last IP in my account, x.x.x.70. When I first did a RDNS check on my main IP I got a domain that I've never seen before, and all other IPs on my account don't resolve at all.
I sent a ticket off to the host, and they set the RDNS record correctly for the main IP on my account, but the other three still fail to resolve. When I asked the host about it in a ticket, the response that I got was
Quote:
Normally, we set RDNS for the main IP address to hostname of the server.
The RDNS for your server has been setup properly. Please get back to us if you need any further assistance.
So basically I'm clueless. Does it matter that the other three IPs I have available don't resolve at all? The domain on the x.x.x.70 IP, which doesn't resolve, is an e-commerce site that depends almost exclusively on e-mail for its business. Doesn't the lack of RDNS resolution mean that I'll be out of luck sending mail to AOL, Yahoo, Hotmail, etc etc on that account? Even though I don't have sites on the middle two IP addresses yet, I fully plan to put sites there within the next couple of months... could they have the same problem?
It's frustrating since I obviously have no control over RDNS records, and the host's staff is being a little obtuse about it.
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May 9, 2007
We've just been told by our data centre that our server that we use to host our web design clients has been disconnected due to massive volumes of traffic from or to the server.
They said I will need to log into a KMV/IP in order to investigate.
I have no idea what I am doing and was wondering if there are any users out there that could give me some pointers in finding what is causing this DoS attack?
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Sep 30, 2009
Does anyone have experience with DNS issues?
I'm hosting a few sites with LiquidWeb (freeteams.net and laxteams.net are the big ones), who's been a terrific host, but I occasionally have some issues trying to access my sites. It occurs only occasionally (maybe 10-20 people have let me know in the past year), but with users in different locations and on different ISPs. It seems to also only occur for a couple of hours.
When they try to type in a specific domain, it won't show up in their browser (browser-independent, I've tried it in Chrome, IE, and Firefox.) However, when they try the IP address directly, the site works. I have about 4 sites on one server, all with their own IP address, and the issue doesn't affect all the domains at the same time.
LiquidWeb says it's an ISP issue (they've checked all the settings on the server, and everything looks ok.) I tend to agree with them, because when I or my users switch from using their ISP's DNS server to OpenDNS' server, it works. However, it's happened at a number of different ISPs around the U.S., including universities, which makes me think there's something I can do to solve the problem. Also, I don't want users to have to change their computer settings.
Also, while I can't access the domain in the browser, I am able to ping the domain, and it will respond.
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Apr 9, 2009
All setup following various tutorials on lamp, but having issues trying to view site url.
here what i got via dig:-
; <<>> DiG 9.3.4-P1 <<>> mp3-dash.com ANY
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45634
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 2, ADDITIONAL: 0
;; QUESTION SECTION:
;mp3-dash.com. IN ANY
;; ANSWER SECTION:
mp3-dash.com. 14400 IN A 89.46.102.100
mp3-dash.com. 14400 IN SOA ns1.mp3-dash.com.mp3-dash.com. admin@mp3-dash.com. 2009040602 86400 7200 3600000 86400
mp3-dash.com. 14400 IN MX 0 website.com.
mp3-dash.com. 500 IN NS ns1.mp3-dash.com.
mp3-dash.com. 500 IN NS ns2.mp3-dash.com.
;; AUTHORITY SECTION:
mp3-dash.com. 500 IN NS ns2.mp3-dash.com.
mp3-dash.com. 500 IN NS ns1.mp3-dash.com.
;; Query time: 24 msec
;; SERVER: 69.42.208.19#53(69.42.208.19)
;; WHEN: Thu Apr 9 20:47:14 2009
;; MSG SIZE rcvd: 202
does that all look ok, i have even ran dns lookup
and here what i getting:-
Searching for mp3-dash.com. A record at G.ROOT-SERVERS.NET. [192.112.36.4] ...took 30 ms
Searching for mp3-dash.com. A record at F.GTLD-SERVERS.NET. [192.35.51.30] ...took 158 ms
Searching for mp3-dash.com. A record at ns2.mp3-dash.com. [89.46.102.75]
Query timed out (interrupted after 1,999 milliseconds)
Retrying...
Searching for mp3-dash.com. A record at ns1.mp3-dash.com. [89.46.102.74]
Query timed out (interrupted after 2,000 milliseconds)
Retrying...
Searching for mp3-dash.com. A record at ns2.mp3-dash.com. [89.46.102.75]
Query timed out (interrupted after 2,004 milliseconds)
Retrying...
Searching for mp3-dash.com. A record at ns1.mp3-dash.com. [89.46.102.74]
Query timed out (interrupted after 2,000 milliseconds)
None of the nameservers responded correctly.
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May 16, 2008
We have few domains which resolve properly for say 1 day and again next day its not resolving.
Sometimes this ON/OFF happens several times a day. This happens when we use the 2 name servers assigned to the server.
this problem does not happen if we use a manged DNS service for the domain names.
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Jul 23, 2008
i got too many logs on Lame-server resolving i my log.
every second about 10-20.
Jul 23 11:31:33 ns1 named[15967]: lame server resolving '92-49-205-1.dynamic.peoplenet.ua.mydnsdomain.net' (in 'mydnsdomain.net'?): my.ip.add.ress#53
Jul 23 11:31:33 ns1 named[15967]: lame server resolving 'www.mydomain.com.mydnsdomain.net' (in 'mydnsdomain.net'?): my.ip.add.ress#53
so i turned of the logging and start search the web on possible reasons. However the only once i found where mostly "in case of the domain is not hosted on the server". But in my case the domains in questions are on my server and show in the log as lame server resolv.
They say it has to do with server is not authoritive for that domain.
So how i am gonna fix this?
With digs, and nslookups, i got not errors at all.
But if i try to change a DNS i got a message back from a provider saying that the domains is broken.
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Jun 9, 2008
I have a customer having trouble with his email today, his domain seems to be unknown for some servers, even the host server refuses to ping to it
[root@svr01 ~]# ping perform.com.co
ping: unknown host perform.com.co
If I ping from my location it works fine
C:>ping perform.com.co
Pinging perform.com.co [74.86.13.172] with 32 bytes of data:
Reply from 74.86.13.172: bytes=32 time=126ms TTL=49
Reply from 74.86.13.172: bytes=32 time=120ms TTL=49
Reply from 74.86.13.172: bytes=32 time=123ms TTL=49
Reply from 74.86.13.172: bytes=32 time=117ms TTL=49
Ping statistics for 74.86.13.172:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 117ms, Maximum = 126ms, Average = 121ms
The domain is working for one year now.
Domain changed
The problem has dissappeared as it came.
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Dec 16, 2007
Ocassionally some users have problems to connect the their websites, they can connect to the server via browser and can ping it and tracert the server IPs fine, they can also browse domains having a dedicated IP address. But they can't connect or ping their websites from their end, basically I think the domain name is not resolving.
From our end and the rest of users everything works fine.
Once I get a complain of this type I try whatever I can do
Check to see if their IP is not blacklisted
Restart named service
Restart apache service
But most of the time this doesn't work at all.
Exactly as the problem comes it goes, nothing I did seems to have any effect on the solution. It goes and ocassionally reappears.
Would you suggest me what would I do to find where the problem is and try to solve it.
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Jun 22, 2007
A client recently moved one of their domains to one&one (night mare I know) he then asked us to repoint the domain name to our servers using out name servers.
We have done this and it is not resolving to our server.
The problem is that the site is no longer showing and their emails are down.
I used a domain dossier and the DNS record looks like it should be changed but I'd like some confirmation on this.
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Aug 5, 2008
I am having a problem with the installation of DomainKeys on my server.
I have a dedicated server from Hosting Matters and I have DomainKeys installed for another domain on the same server.
The problem that i'm running into is that I have a domain that is an addon account of another (basically hosted within a sub-directory of another account).
When I install DomainKeys via the cPanel I get no errors. It "appears" to work fine HOWEVER when I check the headers in Yahoo I get the following:
Authentication-Results: mta215.mail.re2.yahoo.com from=paperboyllc.com; domainkeys=permerror (no key)
Received: from 63.247.138.128 (EHLO ws1.wpdnsgroup.com) (63.247.138.128)
by mta215.mail.re2.yahoo.com with SMTP; Mon, 04 Aug 2008 21:27:03 -0700
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=paperboyllc.com;
h=Received:To:Subject:Date:From:X-Mailer:MIME-Version:Content-Type:Message-Id:X ...
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Jan 9, 2008
I am having some wacky stuff going on with my server. I run a Godaddy v-ded and according to them, the server is fine.
What i'm experiencing is, some of my domains are not resolving, some are. For the ones that are working that run via a database, every few hours, I need to restart mysql(or the server) to get them running again.
Linux OS:
Kernel Version - 2.6.9-023stab044.4-smp
Hardware Information - 3ghz xeon, 512mb, 20gig hd
Software Version - fedora 7
Control Panel - WHM 11.11.0 cPanel 11.16.0-R18546
TOP
Code:
top - 10:27:18 up 2:18, 1 user, load average: 1.17, 0.65, 0.36
Tasks: 74 total, 1 running, 73 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.5% us, 0.6% sy, 0.0% ni, 73.2% id, 23.7% wa, 0.0% hi, 0.0% si
Mem: 6097220k total, 6057888k used, 39332k free, 9328k buffers
Swap: 12586916k total, 6501796k used, 6085120k free, 659732k cached ...
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Dec 6, 2007
Since my local ISP hasn't updated yet, I'm still seeing the sites on the old server. I used a proxy (hidemyass.com) which seems to update all the time, and it said that it couldn't connect to the website (I usually use it to test a site's functionality before I can connect to the site)
What can I do to test where it's going wrong? The domains have been pointed at ns1.theplanet.com and ns2.theplanet.com already, and theplanet has created those nameserver entries for us already. I just don't want the domains to start resolving, only to find that something is broken....
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Sep 19, 2013
Our apache server is not resolving host names only ips. When i check the access.log it is denying entry for any host
For example I have set "Require host test1.internal.com.au" in the httpd.conf and the follow occurs test1.internal.com.au denied
If i set the physical ip of test1.internal.com.au (192.168.3.23) in httpd.conf then there is no issue and test1 can access the machine.
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Jun 26, 2013
We are hosting a webservice application behind a Loadbalancer and the webservice is accessed via a ReverseProxy.However when we try to access the WSDL we see the endpoint loadbalancer IP coming in the response instead of the reverse proxy url.
The httpd.conf has the below entries -
ProxyPass /abc http://IP1:Port1/abc
ProxyPassReverse /abc http://IP1:Port1/abc
Our application [URL] ....
So when we hit the above url to access the WSDL it give us the WSDL return
<wsdl:service name="abc">
<wsdl:port binding="impl:abc" name="abc">
<wsdlsoap:address location="http://IP1:Port1/abc"/>
</wsdl:port>
</wsdl:service>
This exposes our backend IP address and Port. The desired return is
<wsdl:service name="abc">
<wsdl:port binding="impl:abc" name="abc">
<wsdlsoap:addresslocation="http://abconline.com/abc"/>
</wsdl:port>
</wsdl:service>
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