Cookie Mueller was an
actress. She was born in 1939 and died in 1989.
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COOKIE
In computing, cookies are temporary files written to the local hard
disk by a remote web server. They are generally used to allow a web server to be aware of a user's preferences when they connect again.
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SYN FLOODING
SYN flooding is a common form of
attack made upon Internet connected servers with the objective of denying the service offered by the server to legitimate users. This is known as a "Denial of Serviceattack' or 'Dos'.
SYN flooding is very simple, the attacker pretends to request a connection with the target server, but uses a falseIP address. The target server, receives the request to open a connection,
and responds by sending a reply to what it believes is the requesting machine and awaits the appropriate reply back, but of course in reality the target server is now trying to communicate with the falseIP
address which may not exist, or at best has not sent a request and as such will not make the awaitedresponse. The target server typically waits a few minutes for the requiredresponse,
so as to allow for connection difficulties through the Internet, before rejecting the requested connection. In the meantime, the attacker has been sending numerous more fake requests for connections, and the target server responds to each of them accordingly.
Since a server can only satisfy a limited number of connections at any one time, during aSYN flood
attack all the available connections are taken up by false requests, and legitimate requests are rejected by the server on the basis that it is too busy trying to establish other connections
already.
SYN flood attacks can be difficult to detect. The establishment of a communication channel requires very little processor activity, and theattack
does not cause a surge in processor activity. UnderUnix based operating systems the server administrator can check the number ofSYN
communications which are pending by using the 'netstat' command, which will show the connections which are currently in a 'SYN RECEIVED' state. Under
Linux, the shell command to check for SYN RECEIVED connections is 'netstat -n -ptcp
grep SYN RECV'. A large number of connections in a SYN RECEIVED state may be an indication of aSYN flood
attack occurring.
Most Linux operating systems detect possibleSYN flood attacks and defend against them by checking the number of pending
requests for connections, and when this queue becomes close to being full, sending aSYN
cookie to the machine requesting the connection and waits for a
response to the
cookie before continuing to try to establish the connection. When the server sends thecookie, it clears theSYN
request from its queue for connections, effectively ignoring the request. If an appropriateresponse to thecookie
is received, then the connection request is re-queued and the appropriateresponse to the originalSYN request for a
connection is sent as normal. UnderLinux, the operating system records possibleSYN flood attacks and itsresponse
in the file /var/log/kernel which may contains data such as 'possible SYN flooding on port 80. Sending cookies' for example when a web server is under possibleattack.
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THE FORTUNE COOKIE
The Fortune Cookie is a
comedy starring
Jack Lemmon,
Walter Matthau and Ron Rich in a story about a lawyer who persuades a cameraman injured at afootball match to exaggerate his injuries so as to gain themaximum
damages. The Fortune Cookie was directed by Billy Wilder in 1966.
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ASH COOKIE
Ash cookie is South African slang for an untrustworthy, no good person.
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CASEY COOKIE
Casey cookie was American army slang for an improvised hand-grenade invented by GeneralCasey, consisting ofdynamite
and shrapnel inserted into a piece ofbamboo and fitted with a time-delay fuse.
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COOKIE-PUSHER
Cookie-pusher is American slang for an effete or sycophantic man.
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COOKIE
Cookie is British military slang for a crew member or section member
adept at cooking.
Cookie is RAF slang for a heavy
bomb.
Cookie is Black-American slang for the female genitalia.
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LATERAL COOKIE TOSS
Lateral cookie toss is American slang for to vomit.
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TOUGH COOKIE
Tough cookie is slang for a strong unyielding person.
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