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  1. internet status maps and statistics internet status maps and statistics
    1 
    # STATUS
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    ## OVERVIEW / IOE / ATTACKS
    

    

    
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    * https://horizon.netscout.com/?filters=destination.country.DE
    

    

    
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    * https://threats.a10networks.com/
    

    

    

    

    

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## OUTDATED CONTENT ## links: networ...
## OUTDATED CONTENT ## links: network tools online 
    

    

    
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    collection of online tools
    

    

    
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    HUGE TOOLBOXES 
    

    

    
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    http:https://www.whatsmyip.org/
    

    

    

    

    

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sysctl.conf linux
sysctl.conf linux 
    

    

    
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    # /etc/sysctl.conf
    

    

    
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    ## sysctl -p /etc/sysctl.conf
    

    

    
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    # Increase system file descriptor limit
    

    

    

    

    

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base64 .sh - base64 encoded html wi...
base64 .sh - base64 encoded html with embedded base64 encoded remote image  
    

    

    
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    working example
    

    

    
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      # echo -n "data:text/html;base64," && (echo -n "<html><head><title>$(date +'%Y%m%d%H%M%S %s')</title><meta name=\"viewport\" content=\"width=device-width; initial-scale=1.0; maximum-scale=4.0; user-scalable=1;\"></head><body>$(echo "<img src=\"data:image/png;base64,$(curl -s http:https://www.hyperlinkjungle.de/img-favicons/favicon2.gif | base64 --wrap=0)\">")</body></html>"  | base64 --wrap=0 )
    

    

    
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    returns:
    

    

    

    

    

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debian unattended apt-get updates
debian unattended apt-get updates 
    

    

    
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    for PKGS in $(apt-get -s upgrade | grep -A 1 'The following packages will be upgraded:' | tail -n 1); do apt-get upgrade ${PKS}; done
    

    

    

    

    

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list contents of a huge directory
list contents of a huge directory 
    

    

    
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    ls -fl LARGE_DIR/
    

    

    
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    ##
    

    

    
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    ## -f do not sort, enable -aU, disable -ls --color
    

    

    

    

    

    7.