Nmap is a utility for port scanning large networks, although it works fine for single hosts. Sometimes you need speed, other times you may need stealth. In some cases, bypassing firewalls may be required. Not to mention the fact that you may want to scan different protocols (UDP, TCP, ICMP, etc.). Nmap supports Vanilla TCP connect() scanning, TCP SYN (half open) scanning, TCP FIN, Xmas, or NULL (stealth) scanning, TCP ftp proxy (bounce attack) scanning, SYN/FIN scanning using IP fragments (bypasses some packet filters), TCP ACK and Window scanning, UDP raw ICMP port unreachable scanning, ICMP scanning (ping-sweep), TCP Ping scanning, Direct (non portmapper) RPC scanning, Remote OS Identification by TCP/IP Fingerprinting, and Reverse-ident scanning. Nmap also supports a number of performance and reliability features such as dynamic delay time calculations, packet timeout and retransmission, parallel port scanning, detection of down hosts via parallel pings.
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Gentoo Linux Security Advisory 201206-25 - Multiple vulnerabilities were found in Apache HTTP Server. Versions less than 2.2.22-r1 are affected.
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Debian Linux Security Advisory 2501-1 - Several vulnerabilities were discovered in Xen, a hypervisor.
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Gentoo Linux Security Advisory 201206-24 - Multiple vulnerabilities were found in Apache Tomcat, the worst of which allowing to read, modify and overwrite arbitrary files. Versions 5.5.34 are affected.
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Gentoo Linux Security Advisory 201206-23 - PyCrypto generates weak ElGamal keys. Versions less than 2.6 are affected.
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Gentoo Linux Security Advisory 201206-22 - Multiple vulnerabilities have been found in Samba, the worst of which may allow execution of arbitrary code with root privileges. Versions less than 3.5.15 are affected.
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Debian Linux Security Advisory 2500-1 - Several vulnerabilities were discovered in Mantis, an issue tracking system.
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Debian Linux Security Advisory 2499-1 - Several vulnerabilities have been discovered in icedove, the Debian version of the Mozilla Thunderbird mail/news client. There were miscellaneous memory safety hazards (CVE-2012-1937, CVE-2012-1939) and a use-after-free issues (CVE-2012-1940).
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Gentoo Linux Security Advisory 201206-21 - Multiple vulnerabilities have been found in Adobe Flash Player could result in the execution of arbitrary code or Denial of Service. Versions less than 11.2.202.236 are affected.
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Debian Linux Security Advisory 2502-1 - It was discovered that that the ElGamal code in PythonCrypto, a collection of cryptographic algorithms and protocols for Python used insecure insufficient prime numbers in key generation, which lead to a weakened signature or public key space, allowing easier brute force attacks on such keys.
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Gentoo Linux Security Advisory 201206-20 - Multiple vulnerabilities in gdk-pixbuf may create a Denial of Service condition. Versions less than 2.24.1-r1 are affected.
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WEBO Site SpeedUp versions 1.6.1 and below suffer from local file inclusion and remote file inclusion vulnerabilities.
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Voila Web Design suffers from a remote SQL injection vulnerability.
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