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Posted to users@httpd.apache.org by Afsar Mohiuddin <af...@hotmail.com> on 2010/12/16 19:34:01 UTC
[users@httpd] Virtual Servers Help
Hello Everyone,
I am using Apche 2.2.0. I have 4 virtual servers running on it. This server is in DMZ. All servers are accessible from inside the firewalls 24x7 but from outside, sometimes it on and sometimes it is off. I couldn't figure this out. There are no errors in error.log. I appreciate your help.
Re: [users@httpd] Virtual Servers Help
Posted by Jeroen Geilman <je...@adaptr.nl>.
On 12/20/10 7:44 PM, Afsar Mohiuddin wrote:
> Given the facts. Any other ideas? Is there something that I should be
> trying.
>
This is a network problem.
Either your internet connection is down often, or somebody incompetent
manages your network and/or name services.
It's not an apache issue.
You should deploy solid monitoring tools and present evidence to the
person(s) responsible.
--
J.
RE: [users@httpd] Virtual Servers Help
Posted by Afsar Mohiuddin <af...@hotmail.com>.
Given the facts. Any other ideas? Is there something that I should be trying.
Date: Thu, 16 Dec 2010 15:13:06 -0800
From: cjames@emolecules.com
To: users@httpd.apache.org
Subject: Re: [users@httpd] Virtual Servers Help
On 12/16/10 12:18 PM, Afsar Mohiuddin wrote:
I created a personal log checking access every hour. However, there is no pattern. Firewalls have same settings for other machines too but those machines are stand alones and have no virtual servers. CNAME are correct. Access log has GETs are getting 200s. Everything looks normal.
I get no response as if the server (dns) doesn't exist. I can't ping or tracert as NetworkAdmin disabled both. I have a strong feeling that it is firewalls but our NetAdmin thinks otherwise. -- Thanks.
If Apache has nothing in the error log and nothing in the access log, and it works sometimes but not other times, then it's not Apache. There's something wrong with your network, firewall or DNS.
If your network administrator has disabled ping and traceroute, then he's a bonehead. How can you adminster a network with the primary diagnostic tool disabled? Some admins think (incorrectly) that disabling ping somehow makes the network more secure. They need to go back to school.
But that's a topic for a different forum...
Craig
> Date: Thu, 16 Dec 2010 11:44:44 -0800
> From: cjames@emolecules.com
> To: users@httpd.apache.org
> Subject: Re: [users@httpd] Virtual Servers Help
>
> On 12/16/10 10:34 AM, Afsar Mohiuddin wrote:
> > I am using Apche 2.2.0. I have 4 virtual servers running on it.
> > This server is in DMZ. All servers are accessible from inside the
> > firewalls 24x7 but from outside, sometimes it on and sometimes it
> > is off. I couldn't figure this out. There are no errors in
> > error.log. I appreciate your help.
>
> It may be your firewall, not Apache. It may be configured to block some traffic certain times of day.
>
> You should provide more details. When you say "sometimes it on and sometimes it is off," what do you mean? Do you get no response at all, as though the server doesn't exist? Do you get an immediate "refused connection" message? What exactly is happening?
>
> You checked the error log, but what about the access log? Maybe the traffic is getting in through your firewall, but not making it back out to the clients.
>
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Re: [users@httpd] Virtual Servers Help
Posted by "Craig A. James" <cj...@emolecules.com>.
On 12/16/10 12:18 PM, Afsar Mohiuddin wrote:
> I created a personal log checking access every hour. However, there is no pattern. Firewalls have same settings for other machines too but those machines are stand alones and have no virtual servers. CNAME are correct. Access log has GETs are getting 200s. Everything looks normal.
>
> I get no response as if the server (dns) doesn't exist. I can't ping or tracert as NetworkAdmin disabled both. I have a strong feeling that it is firewalls but our NetAdmin thinks otherwise. -- Thanks.
If Apache has nothing in the error log and nothing in the access log, and it works sometimes but not other times, then it's not Apache. There's something wrong with your network, firewall or DNS.
If your network administrator has disabled ping and traceroute, then he's a bonehead. How can you adminster a network with the primary diagnostic tool disabled? Some admins think (incorrectly) that disabling ping somehow makes the network more secure. They need to go back to school.
But that's a topic for a different forum...
Craig
>
>
> > Date: Thu, 16 Dec 2010 11:44:44 -0800
> > From: cjames@emolecules.com
> > To: users@httpd.apache.org
> > Subject: Re: [users@httpd] Virtual Servers Help
> >
> > On 12/16/10 10:34 AM, Afsar Mohiuddin wrote:
> > > I am using Apche 2.2.0. I have 4 virtual servers running on it.
> > > This server is in DMZ. All servers are accessible from inside the
> > > firewalls 24x7 but from outside, sometimes it on and sometimes it
> > > is off. I couldn't figure this out. There are no errors in
> > > error.log. I appreciate your help.
> >
> > It may be your firewall, not Apache. It may be configured to block some traffic certain times of day.
> >
> > You should provide more details. When you say "sometimes it on and sometimes it is off," what do you mean? Do you get no response at all, as though the server doesn't exist? Do you get an immediate "refused connection" message? What exactly is happening?
> >
> > You checked the error log, but what about the access log? Maybe the traffic is getting in through your firewall, but not making it back out to the clients.
> >
> > ---------------------------------------------------------------------
> > The official User-To-User support forum of the Apache HTTP Server Project.
> > See <URL:http://httpd.apache.org/userslist.html> for more info.
> > To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> > " from the digest: users-digest-unsubscribe@httpd.apache.org
> > For additional commands, e-mail: users-help@httpd.apache.org
> >
RE: [users@httpd] Virtual Servers Help
Posted by Afsar Mohiuddin <af...@hotmail.com>.
I created a personal log checking access every hour. However, there is no pattern. Firewalls have same settings for other machines too but those machines are stand alones and have no virtual servers. CNAME are correct. Access log has GETs are getting 200s. Everything looks normal.
I get no response as if the server (dns) doesn't exist. I can't ping or tracert as NetworkAdmin disabled both. I have a strong feeling that it is firewalls but our NetAdmin thinks otherwise. -- Thanks.
> Date: Thu, 16 Dec 2010 11:44:44 -0800
> From: cjames@emolecules.com
> To: users@httpd.apache.org
> Subject: Re: [users@httpd] Virtual Servers Help
>
> On 12/16/10 10:34 AM, Afsar Mohiuddin wrote:
> > I am using Apche 2.2.0. I have 4 virtual servers running on it.
> > This server is in DMZ. All servers are accessible from inside the
> > firewalls 24x7 but from outside, sometimes it on and sometimes it
> > is off. I couldn't figure this out. There are no errors in
> > error.log. I appreciate your help.
>
> It may be your firewall, not Apache. It may be configured to block some traffic certain times of day.
>
> You should provide more details. When you say "sometimes it on and sometimes it is off," what do you mean? Do you get no response at all, as though the server doesn't exist? Do you get an immediate "refused connection" message? What exactly is happening?
>
> You checked the error log, but what about the access log? Maybe the traffic is getting in through your firewall, but not making it back out to the clients.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> " from the digest: users-digest-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
Re: [users@httpd] Virtual Servers Help
Posted by "Craig A. James" <cj...@emolecules.com>.
On 12/16/10 10:34 AM, Afsar Mohiuddin wrote:
> I am using Apche 2.2.0. I have 4 virtual servers running on it.
> This server is in DMZ. All servers are accessible from inside the
> firewalls 24x7 but from outside, sometimes it on and sometimes it
> is off. I couldn't figure this out. There are no errors in
> error.log. I appreciate your help.
It may be your firewall, not Apache. It may be configured to block some traffic certain times of day.
You should provide more details. When you say "sometimes it on and sometimes it is off," what do you mean? Do you get no response at all, as though the server doesn't exist? Do you get an immediate "refused connection" message? What exactly is happening?
You checked the error log, but what about the access log? Maybe the traffic is getting in through your firewall, but not making it back out to the clients.
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