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Problème d'ouvertue de port non désirée sur une configuration IPTABLES
Un problème de contournement des règles iptables fixées par utilisateur peut survenir avec l’utilisation de règles iptables RELATED,ESTABLISH trop générique et le chargement de helper de service non présent ou non utilisé sur la machine (exemple FTP actif, SIP, IRC …).
Rappel sur l’utilisation du drapeau RELATED :
RELATED signifiant que le paquet initie une nouvelle connexion, mais qu'il est associé avec une connexion existante, comme un transfert de données FTP ou une erreur ICMP.
RELATED est associé à conntrack qui utilise différents « HELPER » pour « tracer » et « comprendre » le fonctionnement du protocole.
Just a collection gist of some assorted example SOAPClients. Code must not be stable or useful under all
circumstances, these are examples. Most of the code is outdated, so you won't need to use it any longer
in production code. I've just collected and compiled this together out of interest, the information normally
is scattered around.
If you need to a start with PHP's SOAPClient start with the PHP manual page of it
and read through the comments as well. Double check with exisiting bug-reports if given as many things are fixed since
a comment was left.
"REJECT will send an ICMP message telling them it was rejected, however,
it can be used to DDOS another person. Many DDOS attacks are spoofed sources that
take advantage of REJECT vs DROP. It is advised to use DROP on your internet facing resources