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• ∞ SSH via TOR using SOCAT

  # start TOR
  tor
  
  # create tunnel
  socat TCP-LISTEN:<port> SOCKS4A:localhost:<host>:22,socksport=9050
  
  # login through local tunnel
  ssh <user>@localhost -p <port>

  bash

  1

  SSH via TOR using SOCAT

  # start TOR
  tor
  
  # create tunnel
  socat TCP-LISTEN:<port> SOCKS4A:localhost:<host>:22,socksport=9050
  
  # login through local tunnel
  ssh <user>@localhost -p <port>
  

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  0 comments - tagged in 
  • socat, 
  • ssh, 
  • tor
  posted by lucastheis on Feb 06, 2010 at 7:46 p.m. EST

• ∞ GPG Basics

  # generate key
  gpg --gen-key
  
  
  
  # export public key in ASCII format
  gpg --export -a <username> > <filename>
  
  # import public key
  gpg --import <filename>
  
  # remove public key
  gpg --delete-key <username>
  
  # list all public keys
  gpg --list-keys
  
  
  
  # encrypt file
  gpg --encrypt --recipient <username> <filename>
  gpg -e -r <username> <filename>
  
  # decrypt file
  gpg --decrypt <filename>
  gpg -d <filename>
  
  
  
  # add email address
  gpg --edit-key <username> adduid
  
  
  
  # sign public key
  gpg --sign-key <username>
  
  # list signatures
  gpg --list-sigs [<username>]
  
  
  
  # receive keys from server using key ids
  gpg [--keyserver <server>] --recv-keys <keyid>
  
  # send signed key
  gpg [--keyserver <server>] --send-key <keyid>
  
  # update already received keys
  gpg [--keyserver <server>] --refresh-keys
  
  

  bash

  1

  GPG Basics

  # generate key
  gpg --gen-key
  
  
  
  # export public key in ASCII format
  gpg --export -a <username> > <filename>
  
  # import public key
  gpg --import <filename>
  
  # remove public key
  gpg --delete-key <username>
  
  # list all public keys
  gpg --list-keys
  
  
  
  # encrypt file
  gpg --encrypt --recipient <username> <filename>
  gpg -e -r <username> <filename>
  
  # decrypt file
  gpg --decrypt <filename>
  gpg -d <filename>
  
  
  
  # add email address
  gpg --edit-key <username> adduid
  
  
  
  # sign public key
  gpg --sign-key <username>
  
  # list signatures
  gpg --list-sigs [<username>]
  
  
  
  # receive keys from server using key ids
  gpg [--keyserver <server>] --recv-keys <keyid>
  
  # send signed key
  gpg [--keyserver <server>] --send-key <keyid>
  
  # update already received keys
  gpg [--keyserver <server>] --refresh-keys
  

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  • gpg, 
  • pgp
  posted by lucastheis on Feb 04, 2010 at 10:33 a.m. EST

• ∞ Line Spacing

  % include package
  \usepackage{setspace}
  
  % use one of the following
  \singlespacing
  \onehalfspacing
  \doublespacing
  \setstretch{3}

  tex

  1

  Line Spacing

  % include package
  \usepackage{setspace}
  
  % use one of the following
  \singlespacing
  \onehalfspacing
  \doublespacing
  \setstretch{3}
  

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  • spacing
  posted by lucastheis on Jan 30, 2010 at 12:18 p.m. EST

• ∞ Amazon EC2 Basics

  # list available amazon machine images (AMIs)
  ec2-describe-images -o amazon
  ec2-describe-images -a
  
  # boot instance
  ec2-run-instances <ami-id> -k <keypair-file>
  
  # list running instances
  ec2-describe-instances
  
  # open/close ports on virtual server (open port 22 for ssh)
  ec2-authorize default -p <port>
  ec2-revoke default -p <port>
  
  # log into instance
  ssh -i <keypair-file> root@ec2-<address>.compute-1.amazonaws.com
  
  # shut down instance
  ec2-terminate-instances i-<instance-id>

  bash

  1

  Amazon EC2 Basics

  # list available amazon machine images (AMIs)
  ec2-describe-images -o amazon
  ec2-describe-images -a
  
  # boot instance
  ec2-run-instances <ami-id> -k <keypair-file>
  
  # list running instances
  ec2-describe-instances
  
  # open/close ports on virtual server (open port 22 for ssh)
  ec2-authorize default -p <port>
  ec2-revoke default -p <port>
  
  # log into instance
  ssh -i <keypair-file> root@ec2-<address>.compute-1.amazonaws.com
  
  # shut down instance
  ec2-terminate-instances i-<instance-id>
  

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  0 comments - tagged in 
  • amazon, 
  • ec2
  posted by lucastheis on Dec 27, 2009 at 3:11 p.m. EST

• ∞ Git Basics

  # init a git repository
  git init
  
  # add file to repository
  git add <filename>
  
  # commit all changes
  git commit -a -m <message>
  
  # change to previous revision
  git checkout <revision>
  
  # give current revision a name
  git tag <name>
  
  
  
  # create new branch
  git branch <branch>
  
  # switch to branch
  git checkout <branch>
  
  
  
  # checkout remote repository
  git clone <url>
  
  # checkout changes from remote repository
  git pull
  
  
  
  # list all files under version control
  git ls-files

  bash

  1

  Git Basics

  # init a git repository
  git init
  
  # add file to repository
  git add <filename>
  
  # commit all changes
  git commit -a -m <message>
  
  # change to previous revision
  git checkout <revision>
  
  # give current revision a name
  git tag <name>
  
  
  
  # create new branch
  git branch <branch>
  
  # switch to branch
  git checkout <branch>
  
  
  
  # checkout remote repository
  git clone <url>
  
  # checkout changes from remote repository
  git pull
  
  
  
  # list all files under version control
  git ls-files
  

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  posted by lucastheis on Dec 25, 2009 at 4:00 a.m. EST

A good read

lucastheis's tags

• amazon (1)
• ec2 (1)
• git (1)
• gpg (1)
• pgp (1)
• socat (1)
• spacing (1)
• ssh (1)
• tor (1)