Archive for 'General' Category

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 […]

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 .

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 […]

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

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 […]

XML resources

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

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

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

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

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

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