Questions tagged [trace]

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different between tracert(windows) and traceroute(linux)

I'm tracing some server between tracert(Windows) and traceroute(linux) in the same network. But the output is different. tracert can trace the target server. But traceroute can't. The traceroute ...
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1answer
1k views

Ubuntu kernel trace - troubleshooting “task hung for 120 secs” random crashes

I was finally able to get a trace from a 'task hung for 120 seconds' error. Our servers would just randomly crash on load spikes. IO wait times seem normal. Memory/Swap is fine. These are Xen based ...
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0answers
27 views

How to detect an executable/file calling out a domain

I'm trying to trace an application/file that is calling out a domain(URL). I ran Process Monitor & Wireshark to find SVCHost.exe is responsible. However, I'm unable to locate which file ...
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1answer
135 views

How do I exclude health checks from Google Cloud Stackdriver traces

I'm running my app in Google Kubernetes Engine, and the Stackdriver Traces are very useful to determine the health and speed of my app. However the large majority of request coming into my app are ...
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0answers
54 views

Apache TRACE method not disabled on port 80

I've tried multiple methods to disable the TRACE method on my Apache webserver but for some reason it's disabled for port 443 but not port 80. I've added the following directive to the top of my ...
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0answers
26 views

Can you a get bash script traceback from another language?

If I have a script, lets call it "scr.sh" And I call it from another language e.g Python Is there a way to get the traceback of the functions and files back to the Python language. How I think it ...
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0answers
65 views

Analysing latency for a single request

I have the following (very simplified) network : (ingress) -> DMZ (nginx) -> HA Proxy -> Reverse proxy (nginx) -> Application Server (tomcat) All the layers send information to ...
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2answers
8k views

How to disable TRACE/TRACK in IIS 7.5

From this article : Disable Trace/Track in IIS | Techstacks HOWTO's, I came to know that you need to install UrlScan Filter to disable TRACE/TRACK requests on IIS 7.5. However, I had trouble ...
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0answers
3k views

Troubleshooting 500.0 Internal Server Errors on IIS 8.5?

How does one tell the difference between an HTTP / HTTPS request that is failing in an ASP .NET Core application, and one that's failing from an IIS mis-configuration? Most of the time IIS and the ...
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2answers
24k views

Setting Trace Flags “Permanently” in SQL Server?

We need to use SQL Server Trace Flag 7646 to help mitigate some full text blocking, but I was dismayed to find that the trace flag "unset" itself, probably when the database server was ...
1
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1answer
268 views

Using ftrace to spy on files being created?

We are in this scenario: https://stackoverflow.com/questions/7304826/how-to-debug-a-multithreaded-hung-process-in-linux When we try to look at a rogue process (which is consuming 100% CPU) then it's ...
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1answer
1k views

How can I enable WinHTTP trace logging in Server 2012 R2 for viewing raw HTTP commands and application details?

I have an application running on a Windows Server 2012 R2 system and the app leverages winHTTP for various network requests. It's not able to communicate with another server on the network and I ...
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4answers
20k views

How can I audit a file to see who deleted it?

On one of our servers we have a file that keeps mysteriously getting deleted. What I'd like to do is have a program watch this file and let me know when/how/by whom it gets deleted. We have a backup ...
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0answers
491 views

IIS 8.5 Request Filtering by VERB not working

To disable TRACE/TRACK requests from IIS(Windows 2012 R2), I used the instructions from this tutorial : Verbs <verbs> | Microsoft Docs. I configured to deny OPTIONS, TRACE and TRACK requests. ...
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0answers
441 views

Web Management Service fails to start automatically

After a reboot Web Management Service fails to start. I see the following error in Event Log Unable to bind to the underlying transport for 192.168.0.101:8172. The IP Listen-Only list may contain a ...
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2answers
51k views

What is stored in %Windir%\System32\LogFiles\WMI\RtBackup?

I occasionally notice in Resource Monitor hard disk activity related to ETL files in the folder C:\Windows\System32\LogFiles\WMI\RtBackup. Which process/service creates these ETL files and what is ...
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2answers
268 views

Find out physical network layout?

I'm dealing with some weird networking issues at a workstation in a large warehouse. There is a preexisting drop that is being used for a machine. I found the other end of the wire by using a tone ...
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2answers
16k views

How to trace Apache 301 Moved Permanently?

I have one virtual host on my machine, which I am accessing localy. I am running apache2 under windows 7. When accessing this host, I see in Fiddler, that server redirects browser to different remote ...
2
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2answers
950 views

Add a fake hop in tracert?

A client wants to add a fake hop when someone does a traceroute on his IP address. He has two ip addresses, and one interface (no problem, virtual interfaces solve it). How should I proceed? Is this ...
1
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1answer
651 views

IIS 7.5 deployment's issue - WebApp won't load

Recently, I've been working on a new WebApplication (c# asp.net MVC 4 with VS 2013) and now is time to deploy it on my company's server (WS 2008 R2 SP1). The project is working fine under Visual ...
6
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1answer
2k views

Tracing chain of NTP servers

For educational purposes I wanted to trace a chain of NTP servers, e.g. 0.de.pool.ntp.org back to a stratum 1 NTP server. How can I do this? I found ntptrace, but it doesn't work: /home/xyzdragon# ...
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6answers
29k views

Is it possible to match an internal IP address to a switch port?

I'm trying to find a computer that has a certain IP address on our internal network. I have identified the computer name from DNS, but in this case it does not help me. Just wondering if I can ...
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2answers
1k views

how to see queries to oracle database

the database in question is Oracle 10g Enterprise software the tools available are Toad, SQL Developer, and other built in oracle tools I have an application server within the network, alongside the ...
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1answer
24k views

Server not pinging even after setting gateway and ip

I am configuring an Icinga monitoring server. I am entirely new to Linux, so configuring after googling each and every bit. I have configured ip address, subnet mask and default gateway correctly. "...
1
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1answer
3k views

ARR troubleshooting 502.3 / WinHttp tracing on Server 2012

I have the following scenario: 3 windows server 2012 virtual servers, all with IIS 8: 1 server with Application Request Routing 3 2 servers with the web applications that the ARR server routes to I ...
11
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1answer
473 views

how to do I/O sniffing

For sizing purposes I need to understand what requirements an application has to the I/O subsystem. I would love to do what I call I/O sniffing and obtain a list of events from the block layer like ...
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1answer
877 views

SQL Server Trace keeps outputting files

A consultant has come and gone to do some audit on our SQL server, and has left a bit of a mess here. The problem is that he did things that we don't know anything about. In the C:\Program Files\...
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0answers
233 views

IIS httpTracing setting has no effect

I'm trying to troubleshoot some performance issues we are having on a specific ASP.NET page with Microsoft's Perfecto Tool on IIS 7.5. Perfecto uses the ETW hooks build in to IIS to report on specific ...
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7answers
80k views

traceroute TCP equivalent for Windows [closed]

I'm trying to determine where connectivity to an external host using a specific TCP port is being blocked. Traceroute for Windows only uses ICMP, and telnet will only tell me that the port is blocked ...
0
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1answer
356 views

Application traffic classification with tcpdump

I have a trace file from my network. I would like to identify the top 10 applications used by us . Does tcpdump provide any application based filtering options ? Any details regarding this would be ...
0
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1answer
410 views

Interfacing strace with Process Name instead of PID

How do I implement a wrapper script pstrace in bash that changees the interface of [sudo] strace -c -p [PID] to [sudo] pstrace -c -p [PROCESS-NAME] similar to how killall [PROCESS-NAME] is used....
16
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2answers
8k views

What's difference between monitoring, tracing and profiling?

I have seen these three words showing up a lot, but don't understand the exact differences between them. For example, collecting CPU utilisation is often called profiling and can also fall into ...
13
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10answers
78k views

Identify machines connected to switch

Our company recently closed down half our office space, which was not being used. We gave back the unused space to the building management and had it walled off. Prior to us closing it off, I jotted ...
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3answers
2k views

How to get public DNS server addresses?

I have a need to be able to identify which public DNS servers machines in internal networks are using for queries. To clarify, I do not want IPs or names of internal DNS servers or network devices. I ...
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2answers
8k views

How can I find the answering DNS server?

Is there a way I can trace a DNS request to see where the answer is coming from? Our network has internal DNS servers that provide internal IP address resolution, and we use EasyDNS to host our ...
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3answers
1k views

How do I trace from my client PC what databases it connects to

I wonder if there is some way to trace what servers my program using OLEDB tries to connect to. Problem: I have a program displaying some reports made in Crystal Reports. The loading of some reports ...
1
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1answer
532 views

Trace MySQL processes

I am running a typical LAMP stack with Fedora: how do I find out which PHP script launched the queries which are shown when I run SHOW PROCESSLIST in MySQL? I've read this article, but unfortunately ...
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1answer
1k views

How to run truss with piped command in Solaris

How to run a truss command with piped output? eg. # truss -leDo /tmp/truss.out tar cvf - dirs/ | gzip -1 > archive.tar.gz I get only the "tar" output in truss, not from gzip!
1
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1answer
341 views

Why do my IIS6 requests freeze for a long time in the HTTPSYS_CACHEABLE stage?

One of my applications was experiencing intermittent delays in a specific part of the system. Users would click the "Save" button, and sometimes it would take an extra 30 seconds to respond. I turned ...
2
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2answers
3k views

Tracking IP through a socks5 proxy + RDP?

We were having some issues at work until we found that we are being attacked almost every day. The attacker seems pretty smart - at first he was always using proxy to hide his IP. With scanning I ...
2
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3answers
5k views

IIS ASP.Net Website - ManagedPipelineHandler

I am experiencing a strange issue. I have an ASP.Net web application that users Form Authentication. If I open the log-in page and there is a couple of minutes of inactivity, the log-in attempt times ...
1
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0answers
64 views

Equivalent of SQL Server trace for Oracle 10g?

I've got a bad code duplication problem where we cannot tell which versions of packages/procedures are being used. i.e. I have different packages with procedures of the same name and I need to be ...
4
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3answers
258 views

What tool can be used to splice together log files from different sources?

I am trying to analyze a series of application requests. There are web logs, application server logs and data server logs, all with slightly different timestamps on each line. I'd like to splice ...
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3answers
87k views

How do you trace/debug LDAP connections against Active Directory?

I am spoiled, and have been doing most of my LDAP work with eDirectory, which has a utility called DSTrace which is lovely, and for LDAP specifically, will show you all the bind attempts, the source ...
2
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1answer
1k views

WireShark - wireshark trace traffic from my local browser to a local .net application I have with a HttpListener? (e.g. local to local)

Can wireshark trace traffic from my local browser to a local .net application I have with a HttpListener? (e.g. local to local) I can't seem to detect this traffic at the moment with wireshark. Is ...
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2answers
3k views

How should I capture Linux kernel panic stack traces?

What's current best practice to capture full kernel stack traces on a Linux system (RHEL 5.x, kernel 2.6.18) that occasionally panics in a device driver? I'm used to the "old" SunOS way of doing ...
0
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3answers
663 views

Any good IIS Tracer?

I'm trying to find an IIS Tracer to be able to look at all requests on my ASP.NET application. I found the IISTracer tool which looks great. The problem is that my server is running with an AMD64 ...
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3answers
21k views

Deletion of SQL Profiler Trace files (.trc)

We've noticed a lot of .trc files in our SQL data folder (\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data) on our server. The date range for these files spans over one day and the total file ...
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1answer
82 views

SQL server 2000 trace Flags

On fixing an issue we are having with our backups I am following instructions where it is telling me to add the Trace Flag -g384. This is all good but I am not sure what this perameter actually does. ...
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4answers
7k views

How to diagnose a hang when creating a new folder in explorer.exe

I have been having some issues with explorer.exe hanging when I create a new folder. If I use Analyse Wait Chain in the Resource Monitor it says "One or more threads of explorer.exe are waiting to ...