Skip to content
Question Defense
Technical answers for technical questions
Question Defense
  • Backtrack Linux
    • Backtrack Article Request
  • HTTP ERROR
  • Kali Linux
    • Kali Linux Article Request
  • Privacy Policy
  • Tools
    • Class Of Device – Bluetooth CoD List In Binary And Hex
    • phpMyAdmin Blowfish Secret Generator
  • Documentation
    • check_postgres.pl
    • Linux Man Pages
      • insmod
      • kill
      • Logrotate
      • ls
      • lsmod
      • mail
      • modprobe
      • more
      • mysqldump
      • ntfsprogs
      • ntfsresize
      • pg_dump
      • psql
      • rmmod
      • screen
    • Monarch
      • Monarch Commands
      • Monarch Control
      • Monarch Escalations
      • Monarch Groups
      • Monarch Management of Nagios Hosts
      • Monarch Managing Nagios Contacts
      • Monarch Managing Nagios Hosts
      • Monarch Profiles
      • Monarch Services Template
      • Monarch Time Periods
      • Monarch Tools
  • Tags
  • Contact
Linkedin page opens in new windowTwitter page opens in new window
Search:
Search
  • Backtrack Linux
    • Backtrack Article Request
  • HTTP ERROR
  • Kali Linux
    • Kali Linux Article Request
  • Privacy Policy
  • Tools
    • Class Of Device – Bluetooth CoD List In Binary And Hex
    • phpMyAdmin Blowfish Secret Generator
  • Documentation
    • check_postgres.pl
    • Linux Man Pages
      • insmod
      • kill
      • Logrotate
      • ls
      • lsmod
      • mail
      • modprobe
      • more
      • mysqldump
      • ntfsprogs
      • ntfsresize
      • pg_dump
      • psql
      • rmmod
      • screen
    • Monarch
      • Monarch Commands
      • Monarch Control
      • Monarch Escalations
      • Monarch Groups
      • Monarch Management of Nagios Hosts
      • Monarch Managing Nagios Contacts
      • Monarch Managing Nagios Hosts
      • Monarch Profiles
      • Monarch Services Template
      • Monarch Time Periods
      • Monarch Tools
  • Tags
  • Contact

Author Archives: alex

You are here:
  1. Home
  2. Article author alex

Snort - Free Network Intrusion Prevention

Snort Configure Error: ERROR! dnet header not found – CentOS Linux

ErrorsBy alexJune 19, 2012Leave a comment

Earlier when installing snort on a CentOS Linux server I ran into a configure error. The error related to the fact that libdnet was not located on the server and while it was installed I did not have the libdnet-devel package installed. Below is the sample output from the configure error, an expandable complete output…

Technology Insights

List All IP Addresses Making Port 80 Connections To Linux Server

InsightsBy alexJune 18, 2012Leave a comment

Earlier while analyzing a Linux server it was pointed out to me that the Apache logs were filling up with constant connections requesting domains that were not configured on the server. To me it looked as if a load balancer somewhere was misconfigured and sending traffic to our IP address by mistake but I needed…

Code Snippets

RightScale RightScript To Add SSH Users To Linux Nodes On Boot

Code SnippetsBy alexJune 17, 20126 Comments

The below code snippet was used to add SSH users to RackSpace cloud CentOS Linux nodes being used as application servers and managed via RightScale. The SSH users were required during a testing phase so they could look through logs and make modifications to specific configuration files, etc. There are three things that have to…

Code Snippets

Restart Services On RackSpace Managed Nodes That Require sudo Rights

Code SnippetsBy alexJune 16, 2012Leave a comment

Recently I was working on a project that was using RightScale to manage RackSpace cloud nodes. One of the requirements of the project was to have application nodes scale automatically thus they were required to automatically install software, configure settings, and start services automatically on the RackSpace CentOS nodes being used. Most everything was fairly…

Code Snippets

RightScale RightScript To Update CentOS iptables Rules On RackSpace Node

Code SnippetsBy alexJune 15, 2012Leave a comment

Recently while working on some node or instance automation using RightScale I needed to have some extra iptables rules created automatically when a new node booted. Initially I was just trying to do this via iptables commands which I note below but it would never work. After digging through the logs I realized that the…

Technology Insights

Move Long Running Linux Process To Screen Session

InsightsBy alexJune 14, 2012Leave a comment

Have a long running Linux process open in a SSH terminal window and need to shutdown your computer without killing it? I run into this on a regular basis and never spent the time looking into a solution but this past weekend I actually decided to look and came up with a cool solution called…

Technology Insights

Exclude Multiple Directories When Creating A tar Archive

InsightsBy alexJune 13, 2012Leave a comment

Earlier when upgrading a WordPress site that is running on a CentOS Linux server I needed to quickly backup the entire site to then perform an upgrade of the core WordPress installation. There are multiple directories located beneath the primary site folder that I didn’t need to backup including some caching directories as well as…

Technology Insights

Find Out The Amount Of Time A Linux Process Has Been Running

InsightsBy alexJune 12, 2012Leave a comment

I always forget the ps command arguments to see the length of time that a Linux process has been running so I am writing it out here in hopes of remembering it in the future without having to read the ps manpage. I also will know I can easily search this later to find the…

Technology Errors

CentOS Linux Parted Error: Unable to open /dev/sdc – unrecognised disk label

ErrorsBy alexJune 11, 2012Leave a comment

While rebuilding a large RAID 5 logical drive I had to use parted instead of fdisk. It has been awhile since I had to build a logical drive that was over 2TB so it had been quite awhile since I have used parted which will perform the same basic functions as fdisk and more. Anyhow…

1
23456789101112
…1314151617…
18192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144
145
Question Defense
© 2019 question-defense.com

>>> Brave Browser Tipping: Support us by downloading, installing and then tipping us with Brave! <<<
Amazon Associate Disclaimer: As an Amazon Associate we earn from qualifying purchases.

Go to Top