The tag has no wiki summary.

learn more… | top users | synonyms

-1
votes
0answers
13 views

Centos7 server isn't booting - managed to get access from a resque system - how to diagnose

I would really appreciate some help as i'm really a newbie when it comes to linux. i have a server on hetzner and i was trying to setup postfix and dovecot. also one of the last things i did was to ...
1
vote
0answers
18 views

How can one get a UDE report from Microsoft Fixit Center Pro?

As per this video anybody is supposed to be able to upload their server's logs to the Microsoft Fixit center Pro and get an Automated diagnostic report called UDE. ...
0
votes
0answers
55 views

Freeswitch Database Hangup Causes

I am looking at our Freeswitch database for the VoIP service my company provides and trying to investigate an issue with a particular router. I see from a CDR (Call Detail Record) in the Freeswitch ...
5
votes
1answer
438 views

Identifying what caused a server reboot

I have an HP ProLiant DL380p Gen8 that is running VMWare ESXi 5.5. It has been rebooting itself at seemingly random intervals for the past 24 hours. There is only a single VM running, and even if I ...
1
vote
3answers
196 views

How do I detect what is changing file ownership on Linux?

I have inherited a bunch of Linux (Ubuntu Precise) servers and am currently having problems with the ownership of a folder changing to "root" fairly often. We run puppet, which changes the ownership ...
0
votes
1answer
603 views

csf lfd denied by desktop because of mod_security

I have a WHM/Cpanel server with CSF/LFD installed and mod_security enabled. I used to login to WHM/cpanel from one of my local windows box through a linux (Centos 5)NAT gateway(with a public IP ...
3
votes
1answer
800 views

Diagnosing slow active directory logins

I'm having a hard time diagnosing intermittent slow logins on domain PCs. A bit of information about the network that has this problem: My domain spans 5 sites, all with VPN connections. DCs are ...
1
vote
2answers
1k views

How to diagnose failed drive on server with raid storage controller?

I have problem with one of my Dell PowerEdge R210. Machine is with Centos 6, today system logs started to inform that the hard drive is failing. Jan 6 03:20:12 centos6 kernel: LSI Debug log info ...
0
votes
1answer
1k views

Resert IBM system x3650 fault led

I got OVERSPEC, PS1 and PS2 fault led on my x3650. I tried to replace one PS but nothing changes. The power supplyp seems to work properly and it is very strange to broke both PS at the same time. I ...
1
vote
1answer
117 views

Should I run rsop as administrator or as domain user?

I have to diagnostic some AD policy on a windows7 client. So I want run rsop but I dont know if I have to run it as administrator (local) or as domain limited user.
2
votes
3answers
418 views

Server memory configuration after upgrade

I have an IBM 346 server that can support up to 16GB of memory. It previously had 8GB installed (8x 1GB slots) and was working fine. I have upgraded it to 16GB using 8x 2GB slots. However now when the ...
6
votes
2answers
787 views

Why is Postgres sitting 95% idle, with no file I/O?

I have a TileMill/PostGIS stack running on an 8 core Ubuntu 12.04 VM on an OpenStack cloud. It's a rebuild of a very similar system which was running nicely on very similar hardware (same cloud, but ...
0
votes
2answers
957 views

How can i find out what crashed my Windows Server 2008 R2 box?

My file server just went belly up and I can't seem to figure out why. Perhaps I'm naive but when these things happen I can typically look through my System, Application or Security Event Viewer log ...
1
vote
1answer
150 views

How to test SCSI drives faulty or not?

I have 10 scsi drives which are used. How do I test them to ensure they are working correctly? Some have red stickers presumably indicating they are faulty. The server I have access to is an IBM with ...
0
votes
1answer
51 views

Is there an app that can provide details about wifi access point config?

I'm wondering if there is an easier way to determine of the following parameters of a wifi network. For users who already have say a laptop connected to a wifi network. Does wifi network support ...
0
votes
0answers
71 views

How to check how many external hosts have mounted and accessing a unix (solaris) folder?

We have a local folder in a central Solaris machine(used as a repository) and would like to find out how many external hosts have currently mounted the folder and accessing the files. Is there any ...
1
vote
0answers
113 views

How to start a data collector upon high CPU load condition?

I have a Windows 2008R2 server that experience high CPU load for several minutes about once every couple of weeks. Unfortunately, when these events occurs, logging into the system through RDP or at ...
0
votes
3answers
9k views

How to test a connection without telnet? [closed]

I'm trying to test whether machine A can connect to machine B on certain ports. The sysadmins of machine A have seen fit to remove the telnet command. What would be a convenient replacement? Machine A ...
3
votes
1answer
2k views

Is there a complete reference for HP's diagnostic port 84 and/or port 85 codes?

The HP ProLiant DL580 systems (G5 is the one I'm interested in at the moment) have a two-digit 7-segment display on the system board (visible only inside the chassis) which displays various diagnostic ...
0
votes
1answer
92 views

Cisco ASA Becomes Non-responsive

I have a client that has a Cisco ASA 5505 that sits between their router (provides VOIP phone service) and their Cisco 3550 (Very old version of IOS) that they use as a "Core" switch. This works well ...
0
votes
2answers
150 views

Hardware Diagnosis: Different Ram, Same Memtest Failure

Trying to diagnose random hardware freezes and did the natural thing; started memtesting everything. DDR400 DDR2 Ram CAS 5-5-5-18 Four sets of sticks; 2x2GB PNY's and 2x1GB Elixirs So far I've ...
0
votes
1answer
444 views

What diagnostic tools for diagnosing problems on Ubuntu? [closed]

I recently had an ubuntu server slow to its knees, and when trying to figure out why I realized it didn't have iostat installed. The system was stressed out to the point where I couldn't install the ...
2
votes
3answers
275 views

memtest86+ crashing on server

We have a few DELL 1950 servers. One of those servers has CentOS6.3 and it's randomly rebooting, so I suspected it was hardware (no log generated). The other four servers do not randomly reboot. We ...
1
vote
2answers
320 views

Are my disks within this MSA storage failing?

When I go into my HP Array Configuration Utility, there is no errors and and warnings. No visible amber lights either. Should I swap out the disks? This Windows server lost the storage about 4 times ...
4
votes
3answers
3k views

Methods for analyzing Red Hat sosreport output?

For some time (since EL 4.6), Red Hat has embedded a system report and troubleshooting tool into the operating system. The tool, sosreport, collects system information and settings and bundles it into ...
2
votes
6answers
13k views

Diagnosing permission problems with Cobian Backup to network share

I'm running the latest Cobian 11. I have a Synology DS412 NAS. All of my machines (Mac and Windows) access this just fine when I'm logged in and I browse to it manually. I have Cobian installed as a ...
0
votes
2answers
481 views

Web server keeps going down, how can I find out whats causing it?

I am pretty new to running a VPS. I am using http://www.pingdom.com/ to monitor my server and notify me when its down. What is the process I should go through to determine why is causing the server ...
2
votes
2answers
170 views

Diagnosing Random Network Lag

I'm having trouble diagnosing some random lag on a 6 server LAMP cluster serving a MediaWiki site. While we're serving some 100 pages/sec the servers themselves are running fine with less than 0.5 ...
-1
votes
1answer
827 views

CPU Diagnostic Software

Is there any decent (preferably free) CPU diagnostic software out there? It would need to be either *nix compatible or bootable because this is an ESXi server, and does not run Windows or a proper ...
0
votes
3answers
69 views

Looking for a diagnostic DVD or CD creation tool [closed]

I am looking for a diagnostic DVD utility (which tests hardware, create partition, fix partition, etc..) which can boot directly when the computer start. I am looking a solution which support ...
1
vote
4answers
855 views

What is the easiest way to run a boot level surface scan?

I have a PowerEdge 1850 running two SCSI Ultra 320 drives (10k 73gb). I am looking for recommendations on boot disks / methods to run a boot time surface scan. I would like to do this at boot time ...
1
vote
1answer
73 views

Tools to help identify unknown server issue

We've been struggling to identify a issue where all our bespoke systems crash at least once a day. We haven't changed all our systems to we're trying to pin down what else has changed which is ...
3
votes
2answers
2k views

Diagnosing possible intermittent network failures/slowdowns; tool?

Is there a simple (linux cli) tool that I can run continuously for a period of time to see if the there are any connection problems between two specific network endpoints over the wan? One remote ...
1
vote
1answer
6k views

How to troubleshoot a hanging Linux machine [closed]

There is this popular job interview question: Given a machine hangup (let's say RHEL) how do you trouble shoot the problem? My answer would be: 1) I'd use (what is the name of that server BIOS ...
2
votes
3answers
176 views

Are there any good (hopefully free) hardware diagnostic utilities available?

A diag utility that runs from CD or USB would be my preference. I'm having some trouble with a desktop PC that I support, and I haven't been able to figure out what is going on with it. I used ...
0
votes
1answer
246 views

Server diagnostic tools?

I have an Openfiler server that is misbehaving. Im looking for a bootable CD or similar that will tell me whether there are memory, RAID controller or similar issues.
6
votes
2answers
3k views

How to interpret traceroute / output of MTR?

I have been running MTR to/from one of my servers and noticed something that looks odd to me. Because I am not really into this I will give you three outputs: This is from the server to my home ...
3
votes
2answers
12k views

How to diagnose frequent segfaults

My server is logging frequent segmentation faults to /var/log/kern.log in different tools. So far I've seen them in Perl, PHP and rsync. All installed software is up-to-date Debian packages. Here's an ...
0
votes
1answer
494 views

Random hard drive activity on server 2008 r2

I have Windows Server R2 setup, just as a simple webserver, although it has not gone live yet and is not connected to the network. I notice quite often some random hard disk activity, that will make ...
1
vote
5answers
269 views

What does “-k start” mean in the output of ps command

I try to run an apache instance. It doesn't run properly. I am trying to get some diagnostic information. I gave ps command and the apache instance that don't run properly are output with -k start. ...
1
vote
3answers
3k views

(How) can I use syslog to diagnose mysterious crashes?

I run a LAMP stack on Ubuntu server. Twice today it has ground to a halt and required a hard reboot. Prior to this it had been stable for many months. It has been about a fortnight since the last ...
2
votes
1answer
2k views

Process in the run queue

How do show the current list of processes and threads currently in the run queue? That is to say, if my server's load average is 32.1, then there were on the average about 32 processes or threads ...
0
votes
1answer
498 views

How do I use the Microsoft IIS Diagnostics Toolkit to troubleshoot my problems?

I have downloaded the [IIS Diagnostics Toolkit (x86)][1] [1]: http://www.microsoft.com/downloads/en/details.aspx?familyid=9bfa49bc-376b-4a54-95aa-73c9156706e7&displaylang=en and I was wondering ...
1
vote
1answer
241 views

No Event Logs in Diagnostic on Windows Azure?

I'm trying to get .NET Remoting to work on Windows Azure, with a web role. I get a 500 internal server error when trying to access the URL. I've tried using Azure MMC ...
0
votes
3answers
349 views

Server Crash Diagnosis…Are there any 'black box recorder' style programs available

My redhat server is crashing every three weeks or so at 4:15am ish on Sunday mornings. (well it was sundays the last two have been Thursday mornings at 4:15ish) Looking at the logs (mysql, httpd, ...
0
votes
1answer
1k views

hp dl580 g5 diag error

server disk access is slow, and running insight diagnostics reports this error: Error: 640003 DST Error Error: 640006: The Read and/or Write HARD error rate is above threshold This drive has ...
0
votes
1answer
78 views

How can i easily gather hardware information for bug report submission?

I think I have found a bug in Ubuntu 10.04 beta, but since its a fairly vague problem of non booting after an install (Question Here) i wanted to know what information to gather? Summary of question: ...
3
votes
3answers
560 views

Snapshot of system at high load times?

I'm seeing high load average at regular times on one of my sites. I have alerts setup, but it's not obvious what's causing the high load, so I'd like to capture the state of the system when the alert ...
0
votes
2answers
343 views

Better approach for diagnose web server failure

Yesterday my web sites were down for a short time. I logged on my server and my first reaction was restart the apache web server. After that everything was working fine. So I start to check the ...
4
votes
1answer
12k views

determining free memory from command line on Windows

I would like to monitor the free memory on four machines each running Windows Server 2003 R2 SP2 64-bit. Each box has 31.7gb of RAM. I would like to periodically run a command line tool so I can ...