Questions tagged [troubleshooting]

Troubleshooting is a form of problem solving, often applied to repair failed products or processes.

It is a logical, systematic search for the source of a problem so that it can be solved, and so the product or process can be made operational again. Troubleshooting is needed to develop and maintain complex systems where the symptoms of a problem can have many possible causes.

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Uneven load with Microsoft Network Load Balancing (Server 2003)

I am a network administrator at a small company that uses Network Load Balancing (NLB) to cluster our terminal servers together. Recently, we changed our network setup due to PCI-DSS compliance. Because of this, we introduced a Terminal Service…
nedwards86
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Server goes offline. What to look for?

I'm using a new virtual server through GoDaddy, and this morning I received a call from the powers that be informing me our website was offline. After confirming this, I requested a power cycle through our GoDaddy control panel, and within a minute…
Sampson
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NetBios Name Service requests

I'm noticing on MS Network Monitor a ton of NetBios Name Service broadcasts coming from a particular workstation. When I run netmon on that desktop it cannot resolve the application producing them (but does log them). First question, is this…
Austin Salonen
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Diagnosing Hardware Problem in Linux Server that's Kernel Panicking

We have a server that has been occasionally kernel panicking for a while now that we believe has a hardware problem. How would you go about troubleshooting hardware that you don't have physical access to? Are there any tools that I can use within…
Jeremy Privett
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Ubuntu 9.10: how do I troubleshoot a startup script that doesn't appear to run?

I've created a bash script 'foo'. I've made that script executable with chmod+x and added it the the start-up by running sudo update-rc.d foo defaults 80 Despite that, it doesn't appear to be working at startup. Is there a way to have my script…
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Random server lag, no CPU/mem/pagefile usage

We have a fairly new server running Windows 2003 SP2, and the past few days we've noticed random slowdowns. When I'm logged into the server over remote desktop while this is happening, or if I'm physically sitting at the server logged in, suddenly…
Kev
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Diagnosing samba fileshare issues with TP-Link router

I have a LAN with a TP-Link router (AXE5400, 3 months old), a Mac Mini (2020, osX Monterey) as file-server, and Windows 11 Laptop and a Macbook Pro laptop (c. 2020/2022). Both the Windows and Macbook Pro laptops are regularly failing to connect to…
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Troubleshooting Group Policies?

we built a plain Windows 2008 Server park a few months back, and set up a few Group Policies. Most of them seem to work fine, but once in a while I have the feeling that one or more have not been applied. Take for instance the Group Policy that logs…
Frode Lillerud
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WVD App attach launching windows file explorer

I'm trying to virtualize some apps and test the app attach feature with MSIX packages. I've followed all the steps, and expanded the MSIX into a VHD. I've uploaded the VHD and placed it in a hostpool / app group. It launches. However, it launches…
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Using ENV variables in Postfix and Dovecot configuration files

I'm trying to dockerize my mailing server and I'm having some troubles regarding how am I supposed to use environment variables inside Postfix and Dovecot configuration files (I'm using the latest packages available through apt for ubuntu:18.04). I…
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how to man-in-the-middle blocking/intercepting/editing all network traffic going to a single cabled device and a server

I need to completely block and intercept and alter all packets going between two devices. possibly i need to isolate one device and block/intercept/edit ALL traffic going to and from it if i cannot find the cause in the packets between the devices.…
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Diagnosing increase in traffic hitting a Django web application

This question is about diagnosing the causes of elevated network traffic in an internet-facing web application. Background: The web application in question is a Django-based forum where users upload image and text content, and then discuss it. The…
Hassan Baig
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ISA Server: How to troubleshoot DHCP problem?

I've added a DHCP Server to my ISA Server. The purpose of the DHCP server is to provide addresses to a DMZ (on its own interface) for misc computers that need internet access but don't need to be part of the domain (internal) network. I believe I've…
Dane O'Connor
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AD domain rename problems, can't add server of the same name

I have inherited an active directory domain controller, and after adding a number of servers I found that I couldn't add a server with a specific name. I since found out the admin who built the domain had used this name I was trying to use initially…
morleyc
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Trouble setting up a DD-WRT router with a DSL gateway

Our office is fairly small. We previously had a 2wire gateway that came when we ordered our DSL connection. I recently decided to upgrade to a router that could support DD-WRT since the 2wire was very lacking in features. I purchased a new router…
DWilliams
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