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ES4000 Email Security Appliance http://www.sophos.com/products/es/email/es4000/ Sophos says : “Compact and easy-to-manage, the ES4000 Email Security Appliance.

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Presentation on theme: "ES4000 Email Security Appliance http://www.sophos.com/products/es/email/es4000/ Sophos says : “Compact and easy-to-manage, the ES4000 Email Security Appliance."— Presentation transcript:

1 ES4000 Email Security Appliance
Sophos says : “Compact and easy-to-manage, the ES4000 Security Appliance delivers high-capacity, high-availability security for enterprise networks. It features advanced threat detection, built-in redundancy, remote heartbeat monitoring, and the most intuitive web-based management console available.” Sophos anti-virus technology Sophos anti-spam technology Sophos IP Block List for reputation filtering Management console and dashboard Alerting and notification system Postfix Mail Transfer Agent Hardened FreeBSD operating system Active Directory® integration 10/01/2007 Enrico Ardizzoni - Ufficio Reti e Sistemi - Università di Ferrara

2 Caratteristiche HW / SW
CPUs: 2 x Intel Xeon 64-bit 3.2 Ghz MEM: 2GB HDs: 2 x hot-swap 146 GB SCSI (RAID1) PWR: 2 x hot-swap 540 W, V, Hz # nmap -A -p 25,18080 trita.unife.it ... PORT STATE SERVICE VERSION 25/tcp open smtp Postfix smtpd 18080/tcp open unknown MAC Address: 00:30:48:2F:03:C2 (Supermicro Computer) Device type: general purpose Running (JUST GUESSING) : FreeBSD 5.X|6.X|4.X (97%)... Aggressive OS guesses: FreeBSD (97%), FreeBSD 5.4 (97%), ... 10/01/2007 Enrico Ardizzoni - Ufficio Reti e Sistemi - Università di Ferrara

3 Enrico Ardizzoni - Ufficio Reti e Sistemi - Università di Ferrara
Sophos IP Block List or ... ... public RBLs? 00:22: > DNS Standard query A cbl.abuseat.org 00:22: > DNS Standard query A sbl.spamhaus.org 00:22: > DNS Standard query A dnsbl.njabl.org 00:22: > DNS Standard query A query.bondedsender.org 00:22: > DNS Standard query A dynablock.njabl.org ... 00:58: > DNS Standard query A cbl.abuseat.org 00:58: > DNS Standard query A sbl.spamhaus.org 00:58: > DNS Standard query A dnsbl.njabl.org 00:58: > DNS Standard query A query.bondedsender.org 00:58: > DNS Standard query A dynablock.njabl.org 10/01/2007 Enrico Ardizzoni - Ufficio Reti e Sistemi - Università di Ferrara

4 Efficacia SPAM identificato in @unife.it
Novembre 2006: KB in 2025 mbox Dicembre 2006: KB in 2248 mbox Gennaio 2007: KB in 2276 mbox ... gli utenti si lamentano comunque!!! 10/01/2007 Enrico Ardizzoni - Ufficio Reti e Sistemi - Università di Ferrara

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