IT Security Specialist
Designation: IT Security Specialist
Requirements
* Should have experience in IT Security Domain
* Detailed knowledge on end point compliance enforcement through NAC
* Delivery of secure end point systems management.
* Have strong knowledge on IT security, IT audit and IT Asset life cycle Management.
* Desire to have hands on experience on various security and network products and technologies (e.g. Firewalls, IDS, IPS, HIDS, Symantec Antivirus and Active Directory)
* Architecting and deploying security technologies
* Security information event management (SIEM)
* Expert knowledge on Network Security Controls enforcement at gateway and endpoint.
* Experience in managing large end point systems deployment with respective AV and Asset.
* Analytical and Problem Solving Skills
* Should have good documentation skills - Writing security policies & procedures for Team, baseline and guideline documents etc.
* CCNA / MCSE / ITIL / ISO certifications
* CISSP / CISA / SANs certifications will add value
understanding high I/O wait
Linux has many tools available for troubleshooting some are easy to use, some are more advanced.
I/O Wait is an issue that requires use of some of the more advanced tools as well as an advanced usage of some of the basic tools. The reason I/O Wait is difficult to troubleshoot is due to the fact that by default there are plenty of tools to tell you that your system is I/O bound, .... read more
Tools to monitor the performance of your Linux OS
1 - top --> CPU usage, memory usage, swap memory, Cache, Buffer Size, PID process user commands.
2 - vmstat -> Virtual Memory Statistics
3 - lsof -> open files list
4 - tcpdump-i eth0 -> Packet Analyzer.
5 - netstat-a -> Network Statistics.
6 - htop -> Process Monitoring.
7 - iotop -> Monitor Linux Disk I / O
8 - iostat -> Statistics in / out.
9 - iptraf.ng -> realtime monotorización lan / ip
10 - Psacct or Acct -> monitor of user activity
11 - Monit -> Linux Processes and tracking services.
12 - NetHogs -> Monitor for process-network bandwidth
13 - iftop - Bandwidth Control Network.
14 - Monitorix - System and Network Monitoring
15 - Arpwatch - Ethernet Activity Monitor - ARP spoofing