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Full Discussion: Question about blocking incomming traffic
Special Forums IP Networking Question about blocking incomming traffic Post 302859773 by LMHmedchem on Thursday 3rd of October 2013 07:34:50 PM
Old 10-03-2013
Question about blocking incomming traffic
Hello,

Like many others, I have continued to get attempts to connect to my local net router from the Asia Pacific Network Information Centre and from RIPE Network Coordination Centre, Amsterdam. I would say that 90% of attempted connections come from these two locations. The originating IP address is usually not registered in ARIN, so there is no specific IP range I can block. It is probably pointless to block individual IP addresses, so I have been thinking about other methods.

I began wondering why I should allow any inbound connections, meaning connection requests that originate off of my local net. After thinking about this, I realize that I don't fully understand these protocols as well as I should. Can someone explain whether or not I should block all incoming connections (I am not running any kind of service that would need incoming connections, ftp, sshd, etc). If I can't block all of them, which ones should I continue to allow? What would such a firewall rule look like, etc?

Thanks for any assistance that you can provide.

LMHmedchem
 

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LEARN ABOUT SUSE

finance::quote::yahoo::asia

Finance::Quote::Yahoo::Asia(3)				User Contributed Perl Documentation			    Finance::Quote::Yahoo::Asia(3)

NAME

       Finance::Quote::Yahoo::Asia - Fetch quotes from Yahoo Asia

SYNOPSIS

	   use Finance::Quote;
	   $q = Finance::Quote->new;

	   %info = $q->fetch("asia","CREA.SI"); # Failover to other methods ok.
	   %info = $q->fetch("yahoo_asia","CREA.SI"); # Use this module only.

DESCRIPTION

       This module fetches information from Yahoo Asia.  Symbols should be provided in the format "SYMBOL.EXCHANGE", where the exchange code is
       one of the following:

	       SI - Singapore
	       BO - Bombay
	       JK - Jakarta
	       HK - Hong Kong
	       NS - India
	       KS - Korea
	       KL - Kuala Lumpur
	       NZ - New Zealand
	       SS - Shanghai
	       SZ - Shenzhen
	       TW - Taiwan
	       TH - Thailand

       This module provides both the "asia" and "yahoo_asia" methods.  The "asia" method should be used if failover methods are desirable.  The
       "yahoo_asia" method should be used you desire to only fetch information from Yahoo Europe.

       Stocks are returned in the currency of the local exchange.  You can use Finance::Quote's set_currency() feature to change the currency in
       which information is returned.

       This module is loaded by default by Finance::Quote, but can be loaded explicitly by specifying the parameter "Yahoo::Asia" to
       Finance::Quote->new().

       Information obtained by this module may be covered by Yahoo's terms and conditions.  See http://sg.finance.yahoo.com/ for more details.

LABELS RETURNED

       This module returns all the standard labels (where available) provided by Yahoo.  See Finance::Quote::Yahoo::Base for a list of these.  The
       currency label is also returned.

BUGS

       The currency of each exchange has not been thoroughly confirmed.  If you find an exchange is returning in an incorrect exchange, please use
       the bug tool at http://sourceforge.net/projects/finance-quote to report it.

SEE ALSO

       Yahoo Asia, http://sg.finance.yahoo.com/

       Finance::Quote::Yahoo::Base

perl v5.12.1							    2009-10-05					    Finance::Quote::Yahoo::Asia(3)
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