Resetting the ESX host firewall policy in ESX 4.x

By technese - Last updated: Monday, October 29, 2012
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

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003634

 

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create backup of entire filesystem with tar and bzip compression

By technese - Last updated: Monday, October 29, 2012
# tar -cjvpf backup.tar.bz2 --exclude=backup.tar.bz2 --exclude=proc --exclude=sys --exclude=dev .
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dd using netcat to /dev/sdx / or from/to image file

By technese - Last updated: Monday, October 29, 2012

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
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Reset iptables firewall

By technese - Last updated: Monday, October 29, 2012
# /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
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Online Anti-Virus Websites and Tools

By technese - Last updated: Monday, October 29, 2012
Free online service that analyzes files enabling the identification of viruses, worms, trojans and other kinds of malicious content detected by antivirus engines and website scanners

http://www.virscan.org

http://virusscan.jotti.org

http://vscan.novirusthanks.org

http://www.viruschief.com

http://www.metascan-online.com

https://www.virustotal.com

http://www.garyshood.com/virus

http://online.drweb.com/

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

http://malwarebytes.org

 

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XML resources

By technese - Last updated: Monday, October 29, 2012

http://htmledit.squarefree.com

http://www.w3schools.com/xml/default.asp

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C# resources

By technese - Last updated: Monday, October 29, 2012

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://compilr.com

http://www.innovation.ch/java/java_compile.html

http://ideone.com

http://www.onlinecompiler.net

http://www.comeaucomputing.com/tryitout

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Object-oriented programming resources

By - Last updated: Monday, October 29, 2012

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

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Recursive grep

By technese - Last updated: Monday, October 29, 2012
$ 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

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Date formats with Linux

By technese - Last updated: Tuesday, May 1, 2012
$ date +%B" "%d","" "%Y
May 02, 2012
$ date +"%m-%d-%y"
05-02-12

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