Questions tagged [analysis]
The analysis tag has no usage guidance.
60
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syslog diff or comparison that reorders identical lines to ignore race conditions?
Sometimes when debugging intermittent boot problems, it would be advantageous compare two exerpts from syslog: One leading to a working system, and one leading to the symptom. However, diff is not ...
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Setting up an architecture for analyses flows of time stream data from multiple sources [closed]
What would be the best practice in terms of AWS for the following:
Many IOT medical devices gather data at around 256kBps
The data is a time series data (a matrix of [Channels X Samples], there can ...
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213
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Unable To Access SSAS via MSMDPump File and URL
I had this same issue when trying to connect to SSAS via a MSMDPump file, as stated in this article.
String reference not set to an instance of a String. Parameter name: s
(mscorlib)
I got the ...
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187
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Analyzing an ethernet cable for low negotiating speed
I'd like to find out why my cat 6a refuses to negotiate 1000 speed.
I have a 15 meter long U/FTP CCS cat 6a Ethernet cable installation.
I have analysed the cable with a multimeter and each strand (...
- 143
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256
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Handling and making use of large .DMP file
I've been investigating an issue relating to a Citrix server being managed by ourselves, it appears to have bluescreened and rebooted itself but as such, I wanted to investigated and identify exactly ...
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485
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Log analyzer for statistics (referring sites, referrers URLs) per day
The main task of the analyzer - referring sites, referrers URLs. Logs are collected in one place from 3 nginx server. I install awstats with a specific parameter LogFormat - all working fine, but the ...
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1
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31
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Advanced Policy Analysis
I am trying to find a way to analyze the Advanced Audit Policies. Something like the Security Configuration and Analysis tool. This tools works for the local policy, but doesn't work for the ...
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135
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Using awstats to monitor/graph visitors on a server that only serves images?
I have an apache webserver that serves up images. Lots of machine generated images (i.e. not static files). It doesn't serve any serious amount of html etc. files. A user might request many images one ...
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492
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The "right way" to use sysdig? remote?
I was wondering if it is possible to let sysdig run as a background process and rotate the logfile just for an example every time it gets over 100mb or every 7 day?
and is there anyway i could ...
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157
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Are there any known OIDs to get upload and downloaded data of connected hosts to a cable modem through SNMP?
We are working with SNMP and required to extract monitoring information from different cable modems through SNMP.
We have been able to extract QoS parameters at CPE level and are looking to get ...
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135
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Data Analysis for Spoofed DNS [closed]
A remote nameserver, that I do not have privileges on, is intermittently responding with spoofed addresses. I want to monitor this server and collect data on the spoofed responses for analysis. How ...
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3k
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Port Mirroring on Wireless router
I will be going on site to help hotel manager to identify who is using P2P (torrents) in hotel and abusing network usage for other guests.
Easy option would be
1. Port Mirroring on wireless router ...
3
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1
answer
652
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Is there a way to determine the log format if given a ".log" file?
Is there a way to determine the kind of log (so that it can be parse correctly) if I have no prior information about the type (for eg. syslog, apache log, IIS log) of log it is? I am trying to write a ...
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3
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12k
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Tool to analyze postfix maillog [closed]
I have a mailserver running on iRedMail.
Recently we have some issues that people reporting they would receive phisihing emails from us, which haven't been sent by the users they are saying the are ...
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358
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Poolmon Nonp total bytes not equal to Perfmon Memory > Nonpaged Pool Bytes
We are monitoring a server for a potential Nonpaged Pool memory leak. So we setup a cmd batch file to output to the Nonpaged Pool allocation every 10 mins. We also setup a perfmon counter log to ...
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1
answer
1k
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Exclude an IP address from an openwrt firewall rule
I am using a wrt54gl with openwrt to try and redirect all traffic on my LAN to a specific server, which will run scapy and other network analysis tools and act as a gateway/firewall to the Internet.
...
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27k
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Debian - Port 80 is blocked, but I don't know by what
I can't make lighttpd listen to port 80.
~# /etc/init.d/lighttpd start
Starting web server: lighttpd2013-03-16 23:15:02: (network.c.379) can't bind to port: 80 Address already in use
failed!
...
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758
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What is the best way/tool to analyze raw data(network stats) from Simulation?
After running a simulation(using a simulator(QualNet)) of a simulated network I end up with ip stats stored in a database, I then extract the data to a csv file
So now I have 750mb of raw network ...
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1
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197
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Hyper-V or VMware - Find all modifications/changes made between 2 Snapshots
I would like to use either Hyper-V or Vmware in order to find out after taking a Clean Base snapshot and a modified snapshot and what the modifications/differences and what was changed between the two ...
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2k
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central apache log analysis of many hosts [closed]
We have 30+ apache httpd servers, and are looking to perform analysis on the logs both for historical trending and near "real time" monitoring/alerting. I'm mainly interested in things like error ...
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63
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Whom to request debug analysis assistance from Microsoft? [closed]
I believe our organization has a MSDN subscription from Microsoft. While scouring the Internet for information to assist with crash dump analysis I noticed a post stating that there is some limited ...
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2
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1k
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Finding the most common errors in event logs using Powershell.
I have the event logs for one of our servers locally in .evtx format. I can load the log file into PS using the command:
Get-WinEvent -Path D:\Desktop\serverlogs.evtx
What I would like to do is on ...
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How to determine which file/inode occupies a given sector
I received messages in /var/log/kern.log that indicate drive failure. The messages occured while copying my $HOME between drives (ext4 -> ext3):
[ 5733.186033] sd 4:0:0:0: [sdb] Unhandled sense code
[...
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160
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Looking for data/event trend analysis and visualization
I have data like this:
Date/Time, Source, EventType
I want a tool to be able to run on this data (I can format it or put it in a database or anything), but I want to be able to see trends - like ...
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284
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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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3k
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nfs file access statistics
For a Linux NFSv3 server, is there any way to see statistics on actual file access? In other words, I would like to see a timestamped log of every file read or written.
Motivation: I have several ...
- 1,047
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5k
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"group by count" for IPs in text file in linux
I've got a huge textfile which contains IP addresses:
123.33.22.33
221.23.128.2
123.33.22.33
92.222.192.12
92.222.192.12
123.33.22.33
I can sort it to:
123.33.22.33
123.33.22.33
123.33.22.33
221.23....
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Analyze HTTP logs, looking for iOS
I am currently using AWStats to analyze the apache logs for a server that redirects links, etc from iOS apps to the app store (so we can track clickthrough). In AWStats, however, all of this traffic ...
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Wireshark - Graphic analysis tool. anyone knows? [closed]
Does anyone knows a graphical tool to analyse wireshark captures?
Like something that can agregate traffic by ip's and by protocol and show's it graphicly.
Anyone knows a freeware/opensource utility?...
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2k
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Tools to analyze traffic through a firewall?
We have a pfSense setup with 2 WAN connections (3Mb/s and 17Mb/s) and are using tcpdump to log connection setup and dns requests. We'd like to analyze the places being connected to with an eye ...
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CLI tool for analyzing pcap captures [closed]
I am looking for a command line tool that will look at a capture file, tcpdump -w output, and give output equivalent to the information you get in the Wireshark conversations, and endpoint statistics.
...
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How to get more information from the system crash
I'd like to debug an issue I'm having with a linux (debian stable) server, but I'm running out of ideas of how to confirm any diagnosis.
Some background: The servers are running DL160 class with ...
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355
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Log Analysis on IIS showing App Director IP as source, need actual originating source IP
I have two webservers hosting around 70 websites with load balancing done through Radware App Director.
I have an issue with Log Analysis. All the requests to the 70 odd sites are routed through App ...
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215
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What is the best/easiest way to use scripts to analyze network traffic?
I'm looking to analyze packets via scripts. I'd like to use something high level. I'm in a mac/linux environment. I'm currently looking at different python+libpcap libraries. Perhaps lua+wireshark too....
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970
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Analyzing CPU usage across multiple servers
I am having some load issues with one of my servers, it's running Xen with various guests and with the current 7 it's at its limit.
However it tends to lag every now and then and we'd like to figure ...
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825
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Bayesian / learning log analyzer?
Are there any log analyzers that are using Bayesian algorithms or other learning algorithms? I found btail but the version number (0.2) doesn't give a good outlook.
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What would be an appropriate title for a position focused on system logging?
I am interested in any training involved with system logging, log catching, network device logging, log extraction, log analysis, log presentation... and so forth. I am looking to focus on all things ...
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Analysing Request Time Taken to Find Slow Pages
I'm looking for pages that are slow on a large custom PHP CMS website.
I don't want to dig around in the existing badly none documented code and found that apache access logs can display the time ...
- 610
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15k
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Best tool for Analyzing IIS 7 SMTP Logs
We're using IIS 7's SMTP service for sending out emails from our sites. I'm looking for a SMTP Log analyzer to make it easier for me to view the results and identify and problems (Blocks, Unauthorized ...
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237
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What does it mean that most dropped packets have a different incoming and outgoing port?
Over the weekend an internet-facing DI-624 router of mine was e-mailing me logs like crazy for some reason. Normally it's a few a day, but it was about one every few minutes instead. Analyzing the ...
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Command line tool to analyse disk space based on file types
Basically, I'm looking for something like Windirstat that works well on the command line and is easy to distribute over a network.
I've tried sysinternals du (can't exclude/include file types), ...
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Should I host in the cloud in this scenario?
I'm considering moving our website hosting to the cloud. Currently we have about 1000 visits/day (5000 on peaks). I want to know what kind of 'server power' I need to host this.
Obviously, things ...
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Tracking Apache by VirtualHost
I have an apache webserver running many VirtualHosts.
Recently it has been bogging down and becoming unresponsive, and I'm wondering how I can determine which VirtualHosts are causing most of the ...
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4
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How can I interpret a windows dmp file analysis using Windbg?
I have uploaded the full debug output here.
I've got a Windows 7 RTM 64 bit machine that is crashing intermittently and I managed to load the correct symbols and get what seems to be a proper analysis....
user26105
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350
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Measure/track page load times
I have a few employees who only have access to one website. This website they use for absolutely everything they do and they have started to tell me how slow it is as certain parts of the day. At ...
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3
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1k
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Are there useful static analysis tools for databases? [closed]
Is there a popular tool for examining the configuration and schema of a database for dubious fields, relationships and configuration, similar to how static analysis tools like lint will flag dubious ...
- 14.4k
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151
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Statistics on hotlinked images
Is there a web statistics application that can tell me how many people are hotlinking (or embedding) an image? Google Analytics can't since it needs to render HTML to gather information, so any ...
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How can I use grep to find the most frequently recurring errors in my log file?
I've got a PHP application that is generating large amounts of warnings and notices in the log file..
I'm fixing these one at a time.
I would like to be able to fix the most frequently occurring ...
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did i install my google analytic code wrong?
I inserted this Google analytics code into my family tree web page and after a few days i still get that no activity has been reported
can anyone take a look and see if there is any reason why this ...
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Open Source Linux network analyzer
Open Source Linux network analyzer
Which are there? What features do they offer?
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