Resetting the ESX host firewall policy in ESX 4.x
You cannot stop the firewall service in ESX 4.x. If you try, you see the message:Firewall can’t be stopped.
To disable the firewall run,
$ esxcli network firewall set --enabled false
You can allow all packets through the firewall by running the command:
$ esxcfg-firewall --allowIncoming --allowOutgoing
To return the firewall configuration to its previous setting, run the command:
$ esxcfg-firewall --blockIncoming --blockOutgoing
create backup of entire filesystem with tar and bzip compression
# tar -cjvpf backup.tar.bz2 --exclude=backup.tar.bz2 --exclude=proc --exclude=sys --exclude=dev .
dd using netcat to /dev/sdx / or from/to image file
destination:
# nc -l 19000| bzip2 -d| dd bs=16M of=/dev/sda
source:
# dd bs=16M if=/dev/sda| bzip2 -c| nc serverB.example.net 19000
Reference:
http://www.ndchost.com/wiki/server-administration/netcat-over-ssh
OR
dd from source partition to destination image file
destination:
#nc -l 19000| bzip2 -d| dd bs=16M of=/path/imagefile.dd
source:
# dd bs=16M if=/dev/sda| bzip2 -c| nc source.server.com 19000
dd from source image file to destination partition
destination:
#nc -l 19000| bzip2 -d| dd bs=16M of=/dev/sda
source:
# dd bs=16M if=/path/imagefile.dd| bzip2 -c| nc source.server.com 19000
Reset iptables firewall
# /sbin/iptables -F
# /sbin/iptables -X
# /sbin/iptables -t nat -F
# /sbin/iptables -t nat -X
# /sbin/iptables -t mangle -F
# /sbin/iptables -t mangle -X
# /sbin/iptables -P INPUT ACCEPT
# /sbin/iptables -P FORWARD ACCEPT
# /sbin/iptables -P OUTPUT ACCEPT
Online Anti-Virus Websites and Tools
http://vscan.novirusthanks.org
http://www.metascan-online.com
http://www.garyshood.com/virus
http://www.threatexpert.com/filescan.aspx
http://www.clamwin.com/content/view/89/85
Free service that analyzes and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware.
http://ScanURLs.com
Real-time website malware scanner.
http://URLVoid.com
Analyze domains and subdomains with multiple blacklists and web reputation services.
http://IPVoid.com
Analyze IP addresses with multiple blacklists and IP reputation services.
http://Vscan.NoVirusThanks.org
Scan files and URLs with multiple Antivirus software.
http://HTMLSniffer.com
View the entire HTML source code without visiting the URL.
http://JSGrab.com
Capture all JS and VBScript scripts from a web page.
http://ThreatLog.com
Database of malicious URLs logged by honeypots.
http://URLVir.com
Automatically monitor changes of malicious URLs.
Free Anti-Virus Online Scanner for Workstations
http://www.bitdefender.com/scanner/online/free.html
http://housecall.trendmicro.com
http://www.pandasecurity.com/activescan/index
http://www.f-secure.com/en/web/labs_global/removal-tools/-/carousel/view/143
http://www.pandasecurity.com/homeusers/solutions/activescan
http://www.eset.com/us/online-scanner
http://www.emsisoft.com/en/software/ax/
http://personalfirewall.comodo.com/scan/avscanner.html
http://security.symantec.com/sscv6/WelcomePage.asp
Free Malware Scanner
XML resources
http://htmledit.squarefree.com
http://www.w3schools.com/xml/default.asp
C# resources
http://www.csharp-station.com/Tutorial.aspx
http://www.csharpkey.com/csharp
http://en.csharp-online.net/CSharp/Certification%2C/Development%2C/and/Training
http://www.innovation.ch/java/java_compile.html
http://www.comeaucomputing.com/tryitout
Object-oriented programming resources
http://download.oracle.com/javase/tutorial/java/concepts
http://www.freecomputertutor.net/object-oriented-programming-concepts.php
http://www.codeproject.com/KB/architecture/OOP/Concepts/and_manymore.aspx
Recursive grep
$ grep -r "searchTerm" ./directory
http://blamcast.net/articles/recursive-grep-find-strings-files
Introduction to Programming Using Java, Sixth Edition
Version 6.0, June 2011
http://math.hws.edu/javanotes
Date formats with Linux
$ date +%B" "%d","" "%Y
May 02, 2012
$ date +"%m-%d-%y"
05-02-12