perfSONAR User Q&A and Other Discussion

[Aaron Brown <>]

Hey Chris,

Can you try running the following on the server, and see what the response 
time is? I think the main CGI may be hanging.

time sudo /opt/perfsonar_ps/toolkit/web/root/gui/services/index.cgi

Cheers,
Aaron

On Jun 4, 2014, at 4:35 PM, Florio, Christopher N 
<>
 wrote:

> OK I've edited that - 
> 
> Thanks.
> 
> Still no web page listening.  You do a netstat and see the http listening, 
> supposedly on * ... I really am at a loss.
> 
> 
> 
> 
> 
> 
> 
> 
> On Jun 4, 2014, at 4:07 PM, Joseph Bernard 
> <>
>  wrote:
> 
>> Chris,
>> 
>> Have you tried just configuring your network by only editing the 
>> ifcfg-eth0 file and not running any scripts afterwards?  You don’t need to 
>> restart if you just do “service network restart”.  The config is 
>> PastedGraphic-8.tiff looks like it would work with "BOOTPROTO=none” 
>> instead of “static"
>> 
>> 
>> Thanks,
>> Joseph B.
>> 
>> 
>> On Jun 4, 2014, at 3:46 PM, Florio, Christopher N 
>> <>
>>  wrote:
>> 
>>> Hey Andrew,
>>> 
>>> I got side tracked on another project but I need to get back to getting 
>>> this working.
>>> 
>>> Here's what is happening on installing the Netinstall toolkit on a vlan 
>>> that has IPv6 enabled.  I don't want IPv6 on, and I've even got it 
>>> blocked by policy on the port on our enterasys switch.
>>> 
>>> I am attaching screen shots to better show what I'm doing and what's 
>>> happening to me.
>>> 
>>> 
>>> So here's my first configuration window, I've deselected IPv6 support and 
>>> am going to assign a  static IPV4 manually.
>>> 
>>> 
>>> 
>>> Here's my configuration with my IPv4 that I'm inputting.
>>> 
>>> So far, so good, it's on the network at this point using the IPv4 address 
>>> I gave it and is getting the install stuff from the yum repo or whatever.
>>> 
>>> 
>>> At this stage I can even ping the host while it's installing, so it's 
>>> definitely working on the network.
>>> 
>>> floriodesktop:~ florio$ ping ndt101.itcc.unc.edu
>>> PING ndt101.itcc.unc.edu (152.2.61.21): 56 data bytes
>>> 64 bytes from 152.2.61.21: icmp_seq=0 ttl=62 time=2.259 ms
>>> 64 bytes from 152.2.61.21: icmp_seq=1 ttl=62 time=1.999 ms
>>> 64 bytes from 152.2.61.21: icmp_seq=2 ttl=62 time=1.802 ms
>>> 
>>> 
>>> 
>>> Yay success.  I can also at this moment  still ping the host.
>>> 
>>> So I click the reboot....
>>> 
>>> It boots, and I can't ping the IPv4 address:
>>> floriodesktop:~ florio$ ping ndt101.itcc.unc.edu
>>> PING ndt101.itcc.unc.edu (152.2.61.21): 56 data bytes
>>> Request timeout for icmp_seq 0
>>> Request timeout for icmp_seq 1
>>> 
>>> Looks like no IPv4 address configured:
>>> 
>>> 
>>> 
>>> Looking at the /etc/sysconfig/network and 
>>> /etc/sysconfig/network-scripts/ifcfg-eth0
>>> 
>>> 
>>> So, even though I specified a static ip address, we've got 
>>> BOOTPROTO="dhcp" ...  that's not good, I don't have this in a dhcp server.
>>> 
>>> Also, it's got IPV6INIT="yes" even though I didn't ask to install IPv6 at 
>>> all.  Also the NM_Controlled="yes" sounds bad from what you were saying.
>>> 
>>> I vi the ifcfg-eth0 file to look like
>>> 
>>> 
>>> And restart the host.
>>> 
>>> It's got an ipv6 address, it's not listening for the web page on ipv4... 
>>> I've got ipv6 blocked at the switch, I don't want ipv6.
>>> 
>>> 
>>> I run the /opt/perfsonar_ps_toolkit_scripts/nptoolkit-configure.py
>>> 
>>> Device configuration
>>> 
>>> 
>>> 
>>> Looks right.
>>> 
>>> Save and quit and then exit.
>>> 
>>> reboot.
>>> 
>>> Still not talking on the web side.
>>> 
>>> 
>>> 
>>> Look I still have an IPV6 address .... the web page is probably sitting 
>>> waiting for me on ipv6.  
>>> 
>>> I really need help from here....  how do I get this thing to work in my 
>>> environment?  There used to be a full install available, which I would 
>>> love to try, take the box completely off the wire to do the install and 
>>> maybe then when I configure ipv4 that's all I'd have.  There's only the 
>>> net install or a live cd (which I'd rather not use that).  
>>> 
>>> Any ideas?  Help!
>>> 
>>> Thanks!
>>> 
>>> -Chris
>>> 
>>> 
>>> On Apr 21, 2014, at 11:24 AM, Florio, Christopher N 
>>> <>
>>>  wrote:
>>> 
>>>> Hey Andrew,
>>>> 
>>>> So I've rebuilt one more time, this time I was able to block IPv6 
>>>> traffic at the network port.  At least this time, IPv6 wasn't installed.
>>>> 
>>>> What happened, however, was that no networking was installed, even 
>>>> though I went through the configuration during build.  
>>>> 
>>>> I then ran the /opt/perfsonar_ps/toolkit/scripts/nptoolkit-configure.py 
>>>> and put in networking settings - again - and then rebooted.  I could 
>>>> then ping the host but still, even though httpd is definitely running 
>>>> based on a ps -ef, I can't pull up the web page.
>>>> 
>>>> Any more ideas?  At this point it really seems like the net install is 
>>>> broken.
>>>> 
>>>> 
>>>> On Apr 17, 2014, at 2:53 PM, Andrew Lake 
>>>> <>
>>>>  wrote:
>>>> 
>>>>> Hi,
>>>>> 
>>>>> I don't remember all the CentOS prompts but I believe there is one 
>>>>> prompt where you define the network settings for what you want it to 
>>>>> use to download all the packages and separate one for what you want the 
>>>>> hosts networking to be. I know that was the case at least some point in 
>>>>> the past because I forgot and got bit by it a few times. It's possible 
>>>>> that's what happened during install.
>>>>> 
>>>>> Now that it is installed, you should just be able to edit 
>>>>> /etc/sysconfig/network-scripts/ifcfg-eth0 to get things the way you 
>>>>> want. Make sure NM_CONTROLLED is set to "no" or else there is a good 
>>>>> chance CentOS will keep overriding your settings every time you reboot. 
>>>>> I don't usually turn-off IPV6 on interfaces, but I believe just setting 
>>>>> IPV6INIT="no" in  /etc/sysconfig/network-scripts/ifcfg-eth0 is enough. 
>>>>> 
>>>>> Thanks,
>>>>> Andy
>>>>> 
>>>>> 
>>>>> On Apr 17, 2014, at 9:57 AM, "Florio, Christopher N" 
>>>>> <>
>>>>>  wrote:
>>>>> 
>>>>>> So I think I know what happened.
>>>>>> 
>>>>>> Sorry, before you sent this I had rebuilt already.
>>>>>> 
>>>>>> It looks like, even though I chose to turn of IPv6 in the install, it 
>>>>>> still preferred IPv6 and didn't bring up the IPv4 that I did 
>>>>>> configure.  The vlan this one is in has IPv6 enabled.
>>>>>> 
>>>>>> So, I'm back to the state I was in, http is still NOT responding, I 
>>>>>> think maybe it's not listening on the IPv4 address.  I manually edited 
>>>>>> the /etc/sysconfig/network-scripts/ifcfg-eth0 file.
>>>>>> 
>>>>>> Is there a way to re-run the configuration of apache, etc?  There used 
>>>>>> to be that, in a much older version of the toolkit that I remember.
>>>>>> 
>>>>>> Otherwise, how do I force no IPv6 in the install?  I un-starred the 
>>>>>> IPv6 and it still configured it.
>>>>>> 
>>>>>> 
>>>>>> On Apr 17, 2014, at 9:21 AM, Andrew Lake 
>>>>>> <>
>>>>>>  wrote:
>>>>>> 
>>>>>>> Hi,
>>>>>>> 
>>>>>>> Before you rebuild, you  want to check if a firewall or similar is 
>>>>>>> blocking access to port 80/443. If httpd is running you should be 
>>>>>>> able to connect. You could try temporarily disabling iptables and 
>>>>>>> seeing if that helps. If it does, you'll need to adjust the rules to 
>>>>>>> allow those ports through. If it doesn't, is it possible there are 
>>>>>>> any router ACLs or firewall devices in the way?
>>>>>>> 
>>>>>>> Thanks,
>>>>>>> Andu
>>>>>>> 
>>>>>>> On Apr 17, 2014, at 9:11 AM, "Florio, Christopher N" 
>>>>>>> <>
>>>>>>>  wrote:
>>>>>>> 
>>>>>>>> I'll rebuild again and see if maybe something just didn't work 
>>>>>>>> right....  Will let you know.  httpd was running, nothing in the 
>>>>>>>> error log.
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On Apr 17, 2014, at 8:35 AM, Andrew Lake 
>>>>>>>> <>
>>>>>>>>  wrote:
>>>>>>>> 
>>>>>>>>> Hi,
>>>>>>>>> 
>>>>>>>>> I just did a new imaged install and it worked. I also get the 
>>>>>>>>> warning messages, so I don't think they are causing the server to 
>>>>>>>>> crash. Anything in /var/log/httpd/error_log? Also, if you run 'ps 
>>>>>>>>> auxw | grep httpd' do you see any httpd processes?
>>>>>>>>> 
>>>>>>>>> Thanks,
>>>>>>>>> Andy
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> On Apr 16, 2014, at 4:52 PM, "Florio, Christopher N" 
>>>>>>>>> <>
>>>>>>>>>  wrote:
>>>>>>>>> 
>>>>>>>>>> It might be unrelated, but I'm seeing this in the ssl_error_log - 
>>>>>>>>>> 
>>>>>>>>>> [root@ndt101
>>>>>>>>>>  httpd]# tail -f ssl_error_log 
>>>>>>>>>> [Wed Apr 16 16:16:58 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:16:59 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:22:13 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:22:13 2014] [warn] RSA server certificate 
>>>>>>>>>> CommonName (CN) `ndt101.itcc.unc.edu' does NOT match server name!?
>>>>>>>>>> [Wed Apr 16 16:22:14 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:22:14 2014] [warn] RSA server certificate 
>>>>>>>>>> CommonName (CN) `ndt101.itcc.unc.edu' does NOT match server name!?
>>>>>>>>>> [Wed Apr 16 16:31:51 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:31:53 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:41:06 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> [Wed Apr 16 16:41:06 2014] [warn] RSA server certificate is a CA 
>>>>>>>>>> certificate (BasicConstraints: CA == TRUE !?)
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> On Apr 16, 2014, at 4:46 PM, Florio, Christopher N 
>>>>>>>>>> <>
>>>>>>>>>>  wrote:
>>>>>>>>>> 
>>>>>>>>>>> Hey guys,
>>>>>>>>>>> 
>>>>>>>>>>> I just rebuilt a box from scratch with the 
>>>>>>>>>>> pS-Performance_Toolkit-3.3.2-NetInstall-x86_64.iso ...  
>>>>>>>>>>> 
>>>>>>>>>>> It comes up and I can ping it, but the web server doesn't seem to 
>>>>>>>>>>> load or I can't pull it up.
>>>>>>>>>>> 
>>>>>>>>>>> Anyone else having any problems with a newly imaged net install?
>>>>>>>>>>> 
>>>>>>>>>>> Thanks!
>>>>>>>>>>> 
>>>>>>>>>>> -Chris
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>> 
>>>> 
>>> 
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>> 
> 
> <PastedGraphic-1.tiff><PastedGraphic-2.tiff><PastedGraphic-3.tiff>