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Published on 2010-04-16T16:25:00Z
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2010/04/16
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I have to write a UDP client. Unfortunately, the source system is not always available
Is there a simple tool out there that I can use to create a fake UDP server/traffic on my machine?
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I have a Linux router (Debian 6.x) where i forward some ports to internal services.
Some tcp ports (like 80, 22...) are OK.
I have one Application listening on port 54277udp.
No return is coming from this app, i only get Data on this port.
Router:
cat /proc/sys/net/ipv4/conf/all/rp_filter = 1
cat…
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(Why can/How are) blocked IPs (get/getting) through my iptables?
Hello and thanks for your consideration...
I have configured iptables and included (below) output from the command "iptables --line-numbers -n -L" yet IP addresses (like 31.41.219.180) from IP blocks I have already blocked are getting…
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I just installed an ubuntu precise server,
after a few weird communications issues I checked the iptables list and found:
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere…
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ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
is this means allow all ip from all port?
but I still can not visit the server except I go through the allowed ip address
and if I put this line in any line, did I make this server totally open for any connection?
the full iptable list is below
Chain…
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I need to send floating point numbers using UDP connection to a QT application. Now in QT the only function available is
qint64 readDatagram ( char * data, qint64 maxSize, QHostAddress * address = 0, quint16 * port = 0 )
which accepts data in the form of signed character buffer. I can convert…
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Java provides all the capabilities required to develop socket-based applications relatively easily—and it hides all the complexity involved.
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