Finding problems in a program and trying to solve these.

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2answers
51 views

debugging cache control

How can I check if a website is being cached correctly? I would like the webpages to be cached by browsers, but I also would like that page updates be visible immediatly when a user visits teh ...
0
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2answers
280 views

Where to get the source tar of zend debugger for PHP 5.3.x for linux?

I went here,but the web debugger only contains the windows version zenddebugger.dll, where to get the source tar of zend debugger or better the zenddebugger.so for linux?
5
votes
1answer
917 views

How to configure PHPStorm to debug on IIS

I installed PHP 5 on IIS on a Windows 7 64 bit machine using the Web Platform Installer. I am using PHPStorm as my PHP IDE but cant find any documentation on how to get debugging to work. PHPStorm ...
3
votes
1answer
241 views

Windows 2003 r2 reboots after a few seconds from initiated

I'm having troubles with a virtual machine on a ESXi running windows server 2003 r2. The problem is that every time it initiates and displays the login window, the machine reboots with no warnings, no ...
3
votes
1answer
1k views

SQL Server Debugging: “Unable to Step. Invalid operation”

I'm debugging a call to a Stored Procedure in SSMS (2012). Frequently, and various random points in the code, a dialog pops up: Microsoft SQL Server Management Studio: Unable to Step. Invalid ...
1
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1answer
717 views

Debugging logrotate postrotate script

Following is my logrotate conf. /mnt/je/logs/apache/jesites/web/*.log" { missingok rotate 0 size 5M copytruncate notifempty sharedscripts ...
1
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1answer
400 views

How do I troubleshoot network connectivity problems in windows?

I'd really like to understand how to debug my network connectivity issues, but everything I find on the internet is either for basic users on "How to add a wireless network" or it's people talking ...
1
vote
1answer
221 views

How to use xdebug with eclipse IDE for PHP?

Hi my PHP project is set up on a remote test machine. I need to debug it using eclipse IDE. How shall I progress. I came to know i should prefer Xdebug rather than zend debugger. Please clarify my ...
1
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1answer
208 views

how to debug the apache output filter

i am working on the output filter but it is behaving very abnormally. i am not gettin the the data from the server in continous chunk. it's like first data from the server then next chunk will be the ...
0
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1answer
43 views

Occasional “failed to respond” from AWS hosted Elasticsearch

We have an Elasticsearch cluster hosted on Amazon Elasticsearch Service (AWS). We are using the Jest Java HTTP Rest client for ElasticSearch. Every now and then (perhaps 1 in 10,000 requests), it ...
0
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1answer
52 views

bizarre 404 on nginx

i have a location block for / that passes any virtual paths to index.php as instructed on the nginx pitfalls page. i have been using this setup for some time now, but recently i have noticed that some ...
0
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1answer
22 views

Debug Logging daily task

I manage a domain with 4 domain controllers and i have been asked to enable Debug Logging for Incoming and Request packets. I have set the maximum size of the log file to 500MB. First question I ...
0
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1answer
405 views

What are the first steps to debug nginx default page not showing on fresh Ubuntu vm install?

On a fresh Ubuntu 14.04 virtual machine I've run the following commands: sudo apt-get update sudo apt-get upgrade sudo apt-get install nginx sudo service nginx start In a browser, if I go to the ...
0
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1answer
70 views

Installation of FreeBSD freezes on VMware

I am trying to install FreeBSD on VMware by mounting FreeBSD-9.2-RELEASE-i386-dvd1.iso. The installation proceeds fine untill i reach the following screen I have been waiting for an hour and ...
0
votes
1answer
763 views

Linux kernel bug w/ netns and/or Xen guest - “unregister_netdevice: waiting for lo to become free”

I am running a web crawler in a Xen-based VM (on Linode); it makes heavy use of network namespaces to control use of VPNs on a per-crawl-process basis. It's been running mostly continuously for the ...
0
votes
1answer
199 views

Where should I start to try and debug a CPU spike and timeout when logging in to a Moodle site?

apologies for the newbie nature of this question .. I am a web developer though don't have too much experience maintaining servers or debugging and fixing performance issues. I have a Moodle site ...
0
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1answer
293 views

how to debug mysql has gone?

I have a virtual machine(Ubuntu 12.04, MySQL 5.5) running under VMware and is dedicated to host a mysql server. I connect to this server on internal IP. I'm trying to find out why I get mysql server ...
0
votes
1answer
266 views

Coldfusion crashing when I initiate debugging session?

I've been trying to hook up eclipse to RDS for a CF8 testing server I have in my office. Every time I try to test the connection, the CF8 application server service crashes. When I check the event ...
0
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1answer
317 views

Simple MySQL query locking up until database restart

I have a very simple query that runs in 216ms on my development machine but was taking more than 45 seconds on my production server, that is, until I restarted MySQL there: UPDATE `forum_categories` ...
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1answer
187 views

Tons of 500 errors like - fcgid:warn Bad file descriptor: client mod_fcgid: ap_pass_brigade failed in handle_request_ipc function

I copied a site over to GoDaddy from LiquidWeb because LW experts were unhelpful even if more knowledgeable. GD is hit or miss. On the Godaddy hosting I get 500 errors constantly when in admin ...
4
votes
0answers
878 views

How to debug CGI over fcgiwrap/nginx

I serve executable scripts (mainly in C) through fcgiwrap connected with nginx. Since the scripts are complied, I can get the coding errors during compilation, but sometimes I receive CGI errors ...
2
votes
0answers
32 views

How to reliably capture Linux kernel log messages in case of a system debilitating crash (BUG, panic)?

I'd like to have access to the lines/tracebacks/whatever whispered by the kernel right before dying. This has proven problematic, because all interfaces I have access to become disabled. Post-reboot, ...
2
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0answers
361 views

A tool to measure overhead of establishing TCP connections

I need a tool which would while doing port forwarding measure how much time was spent establishing TCP connections vs total time passed. Charles debugging proxy has the port forwarding feature and ...
1
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0answers
16 views

Obtaining a Crash Dump from a dying IIS ASP.NET Worker Process

(Not sure if this is an IIS problem or not, so if this is better suited for SO I'll happily move it...) We have an IIS-hosted application that is sporadically dying, and the event logs claim that the ...
1
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0answers
22 views

debugging “eth interface using wrong IP” on server

My Uni provided me two hostnames and static IPs for two interfaces on my Fedora Server 23. My idea is to use one hostname for production and another for dev branches. It should work as: bio-db.uni.edu ...
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0answers
11 views

Show or log long queries with values instead placeholders

I have any very long sql query in postgresql. I tried show what postgress do with: select * from pg_stat_activity unfortunately I see something like: select some_fields from anytable1 anytable2 ...
1
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0answers
67 views

ProcessMonitor boot logging claims disk is full

I'm trying to debug an issue where Windows 7 logoff will hang about once in every 5-10 logoffs forcing a hard reboot. I've installed Process Monitor (v3.2) and am running boot logging to try and find ...
1
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0answers
85 views

CoreOS Random Reboot Kernel Panic with Obscure Message - How to debug?

I'm relatively new to the CoreOS world, we had a server reboot and the messaging in the Journal is extremely vague: Sep 18 07:10:27 ip-x-x-x-x.us-west-2.compute.internal kernel: BUG: unable to handle ...
1
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0answers
992 views

Fiddler doesn't work on Windows Server 2012

I can't get Fidller to show any traffic whatsoever when installed on Server 2012 Standard. Any hints on what needs to be enabled or disabled or clicked to make it functional? Just in case, Fiddler ...
1
vote
0answers
43 views

Windows app not allowing debugging

I'll start by saying, I am not sure if this should go in StackOverflow or ServerFault. I posted it in StackOverflow earlier, but its been getting votes to close the question, so I assume it should be ...
1
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0answers
163 views

Is Snort able to efficiently demux and log large HTTP POST requests?

I'm trying to debug some failed HTTP POST requests containing large file uploads (~500 MB). The end-user is receiving strange HTTP responses that are not being logged in either varnish's varnishncsa ...
1
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0answers
336 views

Debugging apache seg fault with gdb

Apache on a production server of mine is seg faulting intermittently. I have enabled core dump option in apache configuration and have several dumped core files. Unfortunately, since it is a ...
1
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0answers
445 views

GRE debug: “adding 0 encap bytes”?

What this debug message actually means? Shouldn't encapsulation add 24 extra bytes or not? For what reason encapsulation is not adding bytes to original packet in this debug message? Dec 28 ...
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0answers
421 views

ColdFusion server won't to start

I'm trying to debug coldfusion application in Adobe Coldfusion builder 2.0 and I coldfusion server won't start. Here is log of console: [localServer]:Listening for transport dt_socket at address: ...
0
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0answers
19 views

“error establishing a database connection” On my wordpress website - with indexes problems?

I keep getting this: "error establishing a database connection" and this is not ending. This is /var/log/apache2/error.log: [Thu Mar 31 11:38:45.865505 2016] [autoindex:error] [pid 22782] ...
0
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0answers
15 views

How to debug lost connections

I'm having a problem between a computer running Filemaker Server and their clients: clients loose the connection often (3-4 times per day), even when the user is using it (so no disconnect on idle). ...
0
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0answers
17 views

IPTables debugging

I've got a weird problem. I've got a primary host in Nevada and a satellite site in Maryland. They both use the 192.168.21.0/24 subnet (as well as .18.0 and .101.0) and have some overlapping ...
0
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0answers
54 views

Troubleshooting with kernel call trace and underlying root cause with XFS

How to determine the root underlying cause of an error when looking through a Linux kernel call trace, and in which order should I read the call trace? From my understanding, the call trace should ...
0
votes
0answers
15 views

client sends password instead of userid when authenticating to Exim

I have an unusual problem and am not sure how to debug it. I am running exim4 on debian with client authentication set to plain over TLS. This is a family/business server I have a few friends who ...
0
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0answers
44 views

Tomcat 7 individual deploy logs

I (as a sysadmin) have setup tomcat 7 to autodeploy .war files for users which works well. However, if there are deployment errors, they are logged to catalina.out, which is not readable by the users. ...
0
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0answers
44 views

Error with a specific bash script

I must first of all shamefully admit that I unfortunately know nothing about scripts... I am simply trying to use one that seems to fit my goal. I am running a VPS node with OpenVZ, and I need a ...