Ispmail Tutorial for Debian Lenny
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Cyrus Mail Server 2 Table of Contents
Univention Corporate Server Cyrus mail server 2 Table of Contents 1. Introduction ........................................................................................................................ 4 2. Installation ......................................................................................................................... 5 3. Management of the mail server data ....................................................................................... 6 3.1. Management of mail domains ..................................................................................... 6 3.2. Assignment of e-mail addresses to users ........................................................................ 6 3.3. Management of mailing lists ....................................................................................... 7 3.4. Management of mail groups ........................................................................................ 7 3.5. Management of shared IMAP folders ........................................................................... 8 3.6. Mail quota ............................................................................................................... 9 4. Spam detection and filtering ................................................................................................ 10 5. Identification of viruses and malware .................................................................................... 11 6. Identification of Spam sources with DNS-based Blackhole Lists (DNSBL) ................................... -
Automated IT Service Fault Diagnosis Based on Event Correlation Techniques
Automated IT Service Fault Diagnosis Based on Event Correlation Techniques Dissertation an der Fakultat¨ fur¨ Mathematik, Informatik und Statistik der Ludwig-Maximilians-Universitat¨ Munchen¨ vorgelegt von Andreas Hanemann Tag der Einreichung: 22. Mai 2007 1. Berichterstatter: Professor Dr. Heinz-Gerd Hegering, Ludwig-Maximilians-Universit¨at M¨unchen 2. Berichterstatterin: Professor Dr. Gabrijela Dreo Rodosek, Universit¨at der Bundeswehr M¨unchen Automated IT Service Fault Diagnosis Based on Event Correlation Techniques Dissertation an der Fakultat¨ fur¨ Mathematik, Informatik und Statistik der Ludwig-Maximilians-Universitat¨ Munchen¨ vorgelegt von Andreas Hanemann Tag der Einreichung: 22. Mai 2007 Tag der m¨undlichen Pr¨ufung: 19. Juli 2007 1. Berichterstatter: Professor Dr. Heinz-Gerd Hegering, Ludwig-Maximilians-Universit¨at M¨unchen 2. Berichterstatterin: Professor Dr. Gabrijela Dreo Rodosek, Universit¨at der Bundeswehr M¨unchen Acknowledgments This thesis has been written as part of my work as a researcher at the Leib- niz Supercomputing Center (Leibniz-Rechenzentrum, LRZ) of the Bavarian Academy of Sciences and Humanities which was funded by the German Re- search Network (DFN-Verein) as well as in cooperation with the research group of Prof. Dr. Heinz-Gerd Hegering. Apart from the LRZ, this research group called MNM-Team (Munich Network Management Team) is located at the University of Munich (LMU), the Munich University of Technology (TUM) and the University of Federal Armed Forces in Munich. At first, I would like to thank my doctoral advisor Prof. Dr. Heinz-Gerd Hegering for his constant support and helpful advice during the whole prepa- ration time of this thesis. I would also like to express my special gratefulness to my second advisor, Prof. -
Linux Administrators Security Guide LASG - 0.1.1
Linux Administrators Security Guide LASG - 0.1.1 By Kurt Seifried ([email protected]) copyright 1999, All rights reserved. Available at: https://www.seifried.org/lasg/. This document is free for most non commercial uses, the license follows the table of contents, please read it if you have any concerns. If you have any questions email [email protected]. A mailing list is available, send an email to [email protected], with "subscribe lasg-announce" in the body (no quotes) and you will be automatically added. 1 Table of contents License Preface Forward by the author Contributing What this guide is and isn't How to determine what to secure and how to secure it Safe installation of Linux Choosing your install media It ain't over 'til... General concepts, server verses workstations, etc Physical / Boot security Physical access The computer BIOS LILO The Linux kernel Upgrading and compiling the kernel Kernel versions Administrative tools Access Telnet SSH LSH REXEC NSH Slush SSL Telnet Fsh secsh Local YaST sudo Super Remote Webmin Linuxconf COAS 2 System Files /etc/passwd /etc/shadow /etc/groups /etc/gshadow /etc/login.defs /etc/shells /etc/securetty Log files and other forms of monitoring General log security sysklogd / klogd secure-syslog next generation syslog Log monitoring logcheck colorlogs WOTS swatch Kernel logging auditd Shell logging bash Shadow passwords Cracking passwords John the ripper Crack Saltine cracker VCU PAM Software Management RPM dpkg tarballs / tgz Checking file integrity RPM dpkg PGP MD5 Automatic -
Release Notes for Debian 7.0 (Wheezy), Kfreebsd 64-Bits PC
Release Notes for Debian 7.0 (wheezy), kFreeBSD 64-bits PC The Debian Documentation Project (http://www.debian.org/doc/) November 20, 2018 Release Notes for Debian 7.0 (wheezy), kFreeBSD 64-bits PC This document is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2, as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. The license text can also be found at http://www.gnu.org/licenses/gpl-2.0.html and /usr/ share/common-licenses/GPL-2 on Debian. ii Contents 1 Introduction 1 1.1 Reporting bugs on this document . 1 1.2 Contributing upgrade reports . 1 1.3 Sources for this document . 2 2 What’s new in Debian 7.0 3 2.1 Supported architectures . 3 2.2 What’s new for kFreeBSD? . 4 2.3 What’s new in the distribution? . 4 2.3.1 CDs, DVDs and BDs . 5 2.3.2 Multiarch . 5 2.3.3 Dependency booting . 5 2.3.4 systemd . 5 2.3.5 Multimedia . 5 2.3.6 Hardened security . 6 2.3.7 AppArmor . -
School and Email Systems
Email system survey: Top 50 US Colleges US Note Email system Server queried Greeting News School ranking 1 Harvard University Mail2World imap.college.harvard.edu OK Mail2World IMAP4 Server 2.5 ready Sun Java SMS imap.princeton.edu OK [CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS CHILDREN BINARY LANGUAGE XSENDER X-NETSCAPE XSERVERINFO Princeton University 1 AUTH=PLAIN] Messaging Multiplexor (Sun Java(tm) System Messaging Server 6.2-5.05 (built Feb 16 2006)) Unknown mail.yale.edu OK [CAPABILITY IMAP4REV1 LOGIN-REFERRALS AUTH=PLAIN AUTH=LOGIN] pantheon-po14.its.yale.edu IMAP4rev1 2002.336 at Mon, 26 Jul 2010 14:10:23 Yale University 3 -0400 (EDT) Dovecot imap-server.its.caltech.edu OK Dovecot ready. Cyrus mail.alumni.caltech.edu OK posteaux1.caltech.edu Cyrus IMAP4 v2.2.12-Invoca-RPM-2.2.12-10.el4_8.4 server ready 4 California Institute of Technology Dovecot imap.gps.caltech.edu OK dovecot ready. Dovecot theory.caltech.edu OK dovecot ready. 4 Massachusetts Institute of Technology Unable to find a server to query (username.mail.mit.edu)Unknown 4 Stanford University Zimbra zm01.stanford.edu OK zm01.stanford.edu Zimbra IMAP4rev1 server ready Zimbra mailbox.zimbra.upenn.edu OK mailbox.zimbra.upenn.edu Zimbra IMAP4rev1 service ready 4 University of Pennsylvania Exchange 2010 webmail.wharton.upenn.edu OK The Microsoft Exchange IMAP4 service is ready. Dovecot imap.nevis.columbia.edu OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE AUTH=PLAIN] Dovecot ready. Lotus Domino equinox.law.columbia.edu OK Domino IMAP4 -
The Bioinformatics Lab SS11 Mail / DNS Antonia Stank 20.06.2011
The bioinformatics lab SS11 Mail / DNS Antonia Stank 20.06.2011 1 Introduction The Domain Name System (DNS) is a one of the most important systems in the network. It is a hierarchical naming system which is built on a distributed database for computers, services or any resource connected to the Internet. The DNS can also be used in a private or local network. The main service of a DNS is that it serves as a kind of “phone book” for the internet or local network by translating user-friendly hostnames into specific IP addresses. For example it is much easier to remember the internet address: www.google.de than the corresponding IP address 209.85.148.99. So it can translate names to numbers and vice versa and helps therefore to connect on a specific IP address without knowing the number. An e-mail-server or just mail server is a server which can handle the mail traffic. It is necessary for sending, receiving, forwarding and saving mails. An Internet Message Access Protocol (IMAP) server is a server that provides the usage of the most prevalent IMAP protocol. There is also another common protocol which is the so called Post Office Protocol (POP). The advantage of the IMAP is that it allows an e-mail client access to a remote mail server. The e-mail clients using IMAP leave the mails on the server until they are explicitly deleted by the user. This and some other advantages make it possible to allow multiple clients to have access to the same mailbox. -
Projeto Final
UNIVERSIDADE CATÓLICA DE BRASÍLIA PRÓ-REITORIA DE GRADUAÇÃO TRABALHO DE CONCLUSÃO DE CURSO Bacharelado em Ciência da Computação e Sistemas de Informação CRIAÇÃO DE UM CORREIO ELETRÔNICO CORPORATIVO COM POSTFIX Autores: Davi Eduardo R. Domingues Luiz Carlos G. P. C. Branco Rafael Bispo Silva Orientador: MSc. Eduardo Lobo BRASÍLIA 2007 Criação de um Servidor de Correio Eletrônico Corporativo com Postfix 2 / 111 DAVI EDUARDO R. DOMINGUES LUIZ CARLOS G. P. C. BRANCO RAFAEL BISPO SILVA CRIAÇÃO DE UM SERVIDOR DE CORREIO ELETRÔNICO CORPORATIVO COM POSTFIX Monografia apresentada ao Programa de Graduação da Universidade Católica de Brasília, como requisito para obtenção do Título de Bacharelado em Ciência da Computação. Orientador: MSc. Eduardo Lobo Brasília 2007 Criação de um Servidor de Correio Eletrônico Corporativo com Postfix 3 / 111 TERMO DE APROVAÇÃO Dissertação defendida e aprovada como requisito parcial para obtenção do Título de Bacharel em Ciência da Computação, defendida e aprovada, em 05 de dezembro de 2007, pela banca examinadora constituída por: _______________________________________________________ Professor Eduardo Lobo – Orientador do Projeto _______________________________________________________ Professor Mário de Oliveira Braga Filho – Membro Interno _______________________________________________________ Professor Giovanni – Membro Interno Brasília UCB Criação de um Servidor de Correio Eletrônico Corporativo com Postfix 4 / 111 Dedico este trabalho primeiramente a Deus que me deu a vida e paciência para chegar a este nível de estudo que me encontro. Em especial a minha mãe que acreditou em mim, aos bons valores que me ensinou e pelo apoio a toda minha vida acadêmica e me compreendeu pelos momentos de ausência ao seu lado. Davi Eduardo R. Domingues Criação de um Servidor de Correio Eletrônico Corporativo com Postfix 5 / 111 Dedico a minha família que sempre acreditou em mim, também aos meus grandes amigos e aos grandes amigos que se foram, aqueles que nos deixam saudades e uma vontade de continuar seus trabalhos. -
An E-Mail Quarantine with Open Source Software
An e-mail quarantine with open source software Using amavis, qpsmtpd and MariaDB for e-mail filtering Daniel Knittel Dirk Jahnke-Zumbusch HEPiX fall 2016 NERSC, Lawrence Berkeley National Laboratory United States of America October 2016 e-mail services at DESY > DESY is hosting 70+ e-mail domains, most prominent: ▪ desy.de — of course :) ▪ xfel.eu — European XFEL ▪ belle2.org — since summer 2016 ▪ cfel.de — Center for Free-Electron Laser Science ▪ cssb-hamburg.de — Center for Structural Systems Biology > mixed environment of open source software and commercial products ▪ Zimbra network edition with web access and standard clients (Outlook, IMAP, SMTP) ▪ Postfix for MTAs ▪ SYMPA for mailing list services ▪ Sophos and Clearswift‘s MIMEsweeper for SMTP > currently ~6.500 fully-fledged mailboxes, some 1000s extra with reduced functionality (e.g. no Outlook/ActiveSync/EWS access) > daily ~300.000 delivered e-mails 2 DESY e-mail infrastructure 1b 3 4 1 2 5 > 1 DMZ filtering ▪ restrictive filtering, reject e-mails from very suspicious MTAs ▪ 1b soon: DESY’s NREN (DFN) will be integrated into e-mail flow with virus- and SPAM-scanning > 2 filter for bad content ➔ suspicious e-mails into quarantine > 3 2nd-level SPAM-scan based on mail text and own rules > 4 distribution of e-mails to mailbox servers, mailing list servers or DESY-external destinations > 5 throttling of e-mail flow to acceptable rates (individual vs. newsletter) ▪ think “phishing” ➔ high rates trigger an alarm > mixed HW/VM environment 3 e-mail at DESY – attachment filtering & quarantine > policy: e-mail traffic is filtered ▪ block “bad” e-mails in the first place ➔ viruses are blocked ➔ executable content is blocked ▪ also block e-mails originating from DESY if they contain malicious or suspicious content ▪ up to now: commercial solution > additional measures ▪ mark e-mails with a high SPAM-score (2nd-level SPAM-filtering) ▪ monitor outgoing e-mail-flow ▪ throttle if over a specific rate ➔ this is sender-specific and customizable (e.g. -
Efficient Spam Filtering System Based on Smart Cooperative Subjective and Objective Methods*
Int. J. Communications, Network and System Sciences, 2013, 6, 88-99 http://dx.doi.org/10.4236/ijcns.2013.62011 Published Online February 2013 (http://www.scirp.org/journal/ijcns) Efficient Spam Filtering System Based on Smart * Cooperative Subjective and Objective Methods Samir A. Elsagheer Mohamed1,2 1College of Computer, Qassim University, Qassim, KSA 2Electrical Engineering Department, Faculty of Engineering, Aswan University, Aswan, Egypt Email: [email protected], [email protected] Received September 17, 2012; revised January 16, 2013; accepted January 25, 2013 ABSTRACT Most of the spam filtering techniques are based on objective methods such as the content filtering and DNS/reverse DNS checks. Recently, some cooperative subjective spam filtering techniques are proposed. Objective methods suffer from the false positive and false negative classification. Objective methods based on the content filtering are time con- suming and resource demanding. They are inaccurate and require continuous update to cope with newly invented spammer’s tricks. On the other side, the existing subjective proposals have some drawbacks like the attacks from mali- cious users that make them unreliable and the privacy. In this paper, we propose an efficient spam filtering system that is based on a smart cooperative subjective technique for content filtering in addition to the fastest and the most reliable non-content-based objective methods. The system combines several applications. The first is a web-based system that we have developed based on the proposed technique. A server application having extra features suitable for the enter- prises and closed work groups is a second part of the system. Another part is a set of standard web services that allow any existing email server or email client to interact with the system. -
Scott E. Harney
Scott E. Harney 1425 Melpomene St., New Orleans, LA 70130 504-298-UNIX scotth@scottharney. com Summary Highly motivated systems engineer with a broad background building and managing 24/7/365 Enterprise and service provider environments with a focus on getting the job done for customers. I am a self starter with a broad and deep understanding of a variety of technologies and how they can best be assembled to support business needs. I can handle multiple simultaneous projects from design through implementation to operational phases. Technologies • Operating Systems: Linux (Debian/Ubuntu, RedHat, Slackware, SuSe, CoreOS), Solaris 2.51-10, Open Solaris, Cisco IOS & NX-OS, VMWare Server/ESX/ESXi/vSphere 3.x-6.x, Sun Xvm Virtualbox, Xen 3.x, Win- dows Server 2008-2012R2 • Server software: Apache, Tomcat, Qmail, Postfix, Sendmail, Exim, OpenLDAP, SunONE Directory, Lucent QIP, ISC dhcpd, Bind, MySQL, PostresSQL, OpenSSL, OpenSSH, djbdns, Samba, NFS, Snort, Cisco CNR3.5-5.0.11, Nagios, MS Clustering Services, Active Directory, IIS, MSSQL • Storage software: Commvault Simpana 9-11, Legato Networker 7.2.x-8.x, Avamar 3.x-5.x, Netapp OnCommand Suite, Netapp Data OnTap 7.2.x- 8.2.x EMC ControlCenter 5.x, EMC Solutions Enabler 6.x, Navisphere 6.24.x, Veritas Command Central 4.3.x, Symmetrix Management Console Hitachi Storage Navigator, HDS Device Manager, Celerra Manager 5.6„ Veritas VxVM 3.x-6 • Cloud Technologies: AWS, GCE, Docker, Kubernetes, Ansible • Network technolgies: ISDN, PPP, MLPPP, DSL, BGP, Frame Relay, VoIP, POP3, IMAP, SMTP, SNMP, DNS, FTP, DHCP, SONET, EIGRP, RIP, IS-IS, Pv6, IPSEC, RADIUS, DOCSIS • Programming/Scripting: Python, PowerShell, Perl, Bourne and C shell scripting, PHP, C, HTML, XML • Hardware: – Sun Servers and Workstations including large scale SunFire E20/E25K through all current hardware Sparc, Intel, and AMD. -
Gary Briggs Personal Details
Gary Briggs Personal Details Home Address: 2251 S Bentley Ave, Apt 202 Los Angeles CA 90064 E-mail: [email protected] Phone: +1 (310) 406 7955 Objective I am looking to obtain a position that utilizes my skills and background as an advanced software engineer Work Experience Summer 2002 - Codehost, Inc, General Engineer. Multiple positions: Spring 2009: Software Engineer [C and C++] for server, desktop and limited-hardware work Database and Server administration. Maintaining a variety of servers including SCM repositories, file and mail servers [Samba, NFS/NIS, Postfix, Amavis], MySQL and Apache Printer driver development [for mostly PostScript devices] and associated tool development Web development [PHP and Perl with MySQL, developing an entire licensing system] Project Management including specification writing and managing external teams Documentation authoring QA Spring 2007 - Chickenware, Senior Games Architect and Developer Present: [Part Time] Lead Programmer and designer on fully networked multiplayer game Use many libraries: Bullet [physics], Ogre3d [graphics], RakNet [networking], Lua [scripting], OpenAL [sound] Fully cross-platform, works on Linux, OSX, Windows Extensive documentation authoring, including complete Doxygen source comments and PDF guides Summer 2000 - Lehman Brothers bank, Web technology group. General Web engineer including Fall 2001: Testing and expanding open source search engine technologies Server administration [Solaris, Linux, Apache, Netscape web server] Initiating work on a test lab for checking the functionality -
Biblioteca Antispam De Propósito Geral
Universidade Federal do Rio de Janeiro Escola Politécnica Departamento de Eletrônica e de Computação LibAntispam – Biblioteca Antispam de Propósito Geral Autor: _________________________________________________ Rafael Jorge Csura Szendrodi Orientador: _________________________________________________ Prof. Jorge Lopes de Souza Leão, Dr. Ing. Examinador: _________________________________________________ Prof. Antônio Cláudio Gómez de Sousa, M. Sc. Examinador: _________________________________________________ Prof. Aloysio de Castro Pinto Pedroza, Dr. DEL Maio de 2009 DEDICATÓRIA Dedico este trabalho: À Zeus (Jupiter), deus do Céu e da Terra, pai e rei dos deuses e dos homens, senhor do Olímpio e deus supremo deste universo. À Hera (Juno), rainha dos deuses, protetora da vida, das mulheres, da fecundidade e do matrimônio. À Athena (Miverva), deusa da sabedoria, do oficio, da inteligência e da guerra justa. Protetora do povo de Atenas. À Ártemis (Diana), deusa da caça, da natureza, da colheita, da serena luz da lua, dos nascimentos e protetora das Amazonas. À Afrodite (Venus), deusa da beleza e do amor, mãe de Enéias, fundador da raça romana, e matriarca da dinastia Julia (a dinastia de Julio Cesar). À minha mãe, Ildi e ao meu pai Gyorgy, pelo meu nascimento e por, de certa forma, terem contribuído para que eu me moldasse no que sou hoje. ii AGRADECIMENTO Ao povo brasileiro que contribuiu de forma significativa à minha formação e estada nesta Universidade. Este projeto é uma pequena forma de retribuir o investimento e confiança em mim depositados. Ao professor Leão, meu orientador neste projeto, por ter aceitado me guiar nesta minha jornada final do meu curso. Aos professores Baruqui (meu orientador acadêmico), Joarez, Gabriel, Petraglia e Mariane, meus amigos há vários anos que sempre me incentivaram a não desistir do curso de eletrônica.