Dynamic and Application-Aware Provisioning of Chained Virtual Security Network Functions
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Instalación Y Configuración De Cortafuegos
Tema 4. Seguridad y alta disponibilidad Instalación y configuración de cortafuegos Raquel Castellanos Crespo Instalación y configuración de cortafuegos Seguridad y alta disponibilidad Raquel Castellanos Crespo INDICE Cortafuegos - Concepto. Utilización de cortafuegos - Historia de los cortafuegos - Funciones principales de un cortafuegos: Filtrado de paquetes de datos, filtrado por aplicación, reglas de filtrado y registros de sucesos de un cortafuegos - Listas de control de acceso (ACL) - Ventajas y limitaciones de los cortafuegos - Políticas de cortafuegos - Tipos de cortafuegos: Clasificación por ubicación y por tecnología - Arquitecturas de cortafuegos - Pruebas de funcionamiento. Sondeos Cortafuegos software y hardware - Cortafuegos software integrados en los sistemas operativos - Cortafuegos software libres y propietarios - Distribuciones libres para implementar cortafuegos en maquinas dedicadas - Cortafuegos hardware. Gestión unificada de amenazas “Firewall UTM” (Unified Threat Management) 2 Tema 4. Seguridad y alta disponibilidad | Raquel Castellanos Crespo Instalación y configuración de cortafuegos Seguridad y alta disponibilidad Raquel Castellanos Crespo Concepto y utilización de cortafuegos Un cortafuegos (firewall en inglés) es una parte de un sistema o una red que está diseñada para bloquear el acceso no autorizado, permitiendo al mismo tiempo comunicaciones autorizadas. Se trata de un dispositivo o conjunto de dispositivos configurados para permitir, limitar, cifrar, descifrar, el tráfico entre los diferentes ámbitos sobre la base de un conjunto de normas y otros criterios. Los cortafuegos pueden ser implementados en hardware o software, o una combinación de ambos. Los cortafuegos se utilizan con frecuencia para evitar que los usuarios de Internet no autorizados tengan acceso a redes privadas conectadas a Internet, especialmente intranets. Todos los mensajes que entren o salgan de la intranet pasan a través del cortafuegos, que examina cada mensaje y bloquea aquellos que no cumplen los criterios de seguridad especificados. -
Physical Or Virtual Firewall for Perimeter Protection in Cloud Computer Infrastructure
16th INTERNATIONAL CONFERENCE ON INFORMATION SYSTEMS & TECHNOLOGY MANAGEMENT - CONTECSI - 2019 DOI: 10.5748/16CONTECSI/ITM-6115 PHYSICAL OR VIRTUAL FIREWALL FOR PERIMETER PROTECTION IN CLOUD COMPUTER INFRASTRUCTURE Thiago Mello Valcesia - IPT - Instituto de Pesquisas Tecnológicas - [email protected] Antonio Luiz Rigo - IPT - Instituto de Pesquisas Tecnológicas - [email protected] SUMMARY This article presents an examination of the different types of firewalls geared toward protecting Datacenters. The idea is to perform a survey of the different ways of installation, the safety perceived by customers, the positive and negative points of each model and the market trends for perimeter protection. In addition, it is intended to categorize rules, protection filters, application inspection criteria and services offered by firewalls, by analyzing the various protection schemes available in firewalls, regardless of the structure as a service in Cloud adopted. Keywords: Physical firewall, Virtual firewall, Cloud firewall, Security, Cloud Computing. INTRODUCTION The term Digital Security is increasingly present in our daily lives. The need to protect computers or prevent corporate networks from receiving unnecessary traffic, improper access, and unknown packets, coupled with the concern of professional information security staff about content accessed by Internet users, make data control a vital task. Firewall is much more than a "fire wall" isolating the company network from the external world represented by the Internet. The Firewall function is therefore essential to raise the level of security of the internal environment, protecting it from external attacks, increasing security and reducing the vulnerability of the local network. There are currently three Firewall alternatives to install on enterprise networks that aggregate cloud network segments: 1. -
SEGURIDAD Y ALTA DISPONIBILIDAD En Este Libro Se Abarcara La Asignatura De Servicios De Red E Internet Del Grado Superior De Informática
SEGURIDAD Y ALTA DISPONIBILIDAD En este libro se abarcara la asignatura de servicios de red e internet del grado superior de informática. Escrito por: Nicolás Madrid Gallego Nicolás Madrid Gallego IES GREGORIO PRIETO CORTAFUEGOS SEGURIDAD Y ALTA DISPONIBILIDAD CORTAFUEGOS 2 SEGURIDAD Y ALTA DISPONIBILIDAD CORTAFUEGOS Contenido 1.- Concepto . Utilización de cortafuegos. ........................................................................... 3 2.-Historia de los cortafuegos ............................................................................................... 4 Primera generación – cortafuegos de red: filtrado de paquetes ................................ 5 Segunda generación – cortafuegos de estado ............................................................ 5 Tercera generación - cortafuegos de aplicación.......................................................... 6 Acontecimientos posteriores ......................................................................................... 6 1.3.-Funciones principales de un cortafuegos: Filtrado de paquetes de datos, filtrado por aplicación, Reglas de filtrado y registros de sucesos de un cortafuegos ................... 7 Filtrado de paquetes .............................................................................................................. 7 1.4.-Listas de control de acceso (ACL) .............................................................................. 10 1.5.-Ventajas y Limitaciones de los cortafuegos .............................................................. -
Exploiting Cloud Management Services As an Information Leakage Channel
I Heard It through the Firewall: Exploiting Cloud Management Services as an Information Leakage Channel Hyunwook Baek∗ Eric Eide [email protected] [email protected] University of Utah University of Utah Salt Lake City, UT, USA Salt Lake City, UT, USA Robert Ricci Jacobus Van der Merwe [email protected] [email protected] University of Utah University of Utah Salt Lake City, UT, USA Salt Lake City, UT, USA ABSTRACT Though there has been much study of information leakage chan- nels exploiting shared hardware resources (memory, cache, and disk) in cloud environments, there has been less study of the ex- ploitability of shared software resources. In this paper, we analyze the exploitability of cloud networking services (which are shared among cloud tenants) and introduce a practical method for build- ing information leakage channels by monitoring workloads on the cloud networking services through the virtual firewall. We also demonstrate the practicality of this attack by implementing two different covert channels in OpenStack as well as a new classof side channels that can eavesdrop on infrastructure-level events. By utilizing a Long Short-Term Memory (LSTM) neural network model, our side channel attack could detect infrastructure level VM creation/termination events with 93.3% accuracy. CCS CONCEPTS • Security and privacy → Distributed systems security; Fire- walls; • Computer systems organization → Cloud computing; • Networks → Cloud computing; Figure 1: Resource sharing of two requests KEYWORDS cloud management, cloud security, side channel, OpenStack 1 INTRODUCTION However, shared resources also cause interference among cloud tenants and can even be exploited as information leakage channels Resource sharing is a fundamental part of cloud computing. -
Who Is Ivan Pepelnjak (@Ioshints)
Virtual Firewalls Ivan Pepelnjak ([email protected]) NIL Data Communications Who is Ivan Pepelnjak (@ioshints) • Networking engineer since 1985 • Focus: real-life deployment of advanced technologies • Chief Technology Advisor @ NIL Data Communications • Consultant, blogger (blog.ioshints.info), book and webinar author • Teaching “Scalable Web Application Design” at University of Ljubljana Current interests: • Large-scale data centers and network virtualization • Networking solutions for cloud computing • Scalable application design • Core IP routing/MPLS, IPv6, VPN 2 © ipSpace.net / NIL Data Communications 2013 Virtual Firewalls Virtualization Webinars on ipSpace.net Coming in 2013 Coming in 2013 vSphere 5 Update Overlay Virtual Networking Coming in 2013 Virtual Firewalls OpenFlow and SDN Use Cases VXLAN Deep Dive OpenFlow VMware Networking Cloud Computing Networking Introduction to Virtualized Networking Availability Other options • Live sessions • Customized webinars • Recordings of individual webinars • ExpertExpress • Yearly subscription • On-site workshops 3 InterMore© ipSpace.net- DCinformation /FCoE NIL Data Communications has @ very2013 http://www.ipSpace.net/Webinars limitedVirtual use Firewalls and requires no bridging Firewalls Used To Be Easy Packet filters Application-level firewalls (WAF) Firewalls Stateful Load firewalls balancers? 4 © ipSpace.net / NIL Data Communications 2013 Virtual Firewalls Routed or Bridged? Routed (inter-subnet) Transparent (bridged) • Packet filtering and IP routing • Packet filtering and bridging -
Catalogueformationspythagorefd 2017.Pdf
p.1 Pythagore F.D. : Apprendre à Apprendre Nouveautés 2017 : Pour plonger au coeur des technologies BigData, comprendre les concepts de NoSQL, d'indexation, de sharding, etc ... savoir concevoir les architecture ad-hoc et intégrer, déployer les solutions, nous proposons une gamme complète de formations, ateliers, classes virtuelles qui vont de l'introduction avec des stages comme « BigData, architecture et technologies », jusqu'à l'expertise sur des sujets comme la « Programmation R pour hadoop », ou le stage « Machine Learning : technologies et bonnes pratiques ». Nos domaines d'expertise : • Unix et Linux, et les applicatifs Apache, Openldap, Squid, Nagios, Zabbix, OCS/GLPI, puppet , chef... • la virtualisation et l'orchestration avec xen, kvm, lxc, Docker, et le cloud : cloudstack et openstack, openNebula, Cloudify, cobbler, etc ... • TCP/IP (IPv6, snmp, Architecture, Sécurité, Administration de réseaux IP, VoIP, ...) • Développement (langage C, Java, Jee, technologies Jee, JBoss, WebServices, PHP, Perl, Python , ...) et le développement sur mobiles android • les bases de données et le BigData avec NoSQL, Cassandra, MongoDB, Hadoop, ... Sur chacun de ces domaines, notre équipe possède un excellent niveau d'expertise couvrant l'ensemble du domaine, des fondamentaux aux outils les plus complexes : nos formations vont de l'introduction à Linux, à la Sécurité, la Haute Disponibilité, des concepts NoSQL à la programmation MapReduce Tous nos stages sont l'occasion de nombreuses mises en pratique et exercices de manière à permettre aux participants de bien assimiler les nouveaux concepts. Nos méthodes pédagogiques : Apprendre, concevoir, intégrer ... nous pensons que le meilleur moyen de comprendre les nouveaux concepts et les technologies est la mise en pratique. Nous organisons des ateliers, expériences, démonstrations, .. -
The Virtual Firewall
The Virtual Firewall Vassilis Prevelakis Computer Science Department Drexel University 1. Introduction The trend towards portable computing means that the traditional security perimeter architecture (where a firewall protects computers in the LAN by controlling access to the outside world) is rapidly becoming obsolete. This has resulted in a number of products described as “personal firewalls” that control that computer’s access to the network and hence can protect it in the same way as a traditional firewall. Existing systems such as Windows and most Unix and Unix-like systems already provide security features that can be used to implement firewall functionality on every machine. However, the difficulty of securing general purpose operating systems has im- peded the widespread use of this approach. Moreover, it is difficult to ensure that a secured sys- tem remains secure after the user has had the opportunity to install software and perform recon- figurations and upgrades. Recognizing the futility of attempting to secure the user machines themselves, in [Prev03, Denk99] the authors proposed the use of a portable “shrink-wrapped” firewall. This was a sepa- rate machine running an embedded system that included firewall capabilities and was intended to be placed between the general purpose computer and the network. The problem of securing the firewall became much simpler as it utilized a special-purpose firewall platform with a highly controlled architecture. Sadly, the proposal saw limited adoption because carrying around yet another device is expensive and inconvenient. To make matters worse, if the external device is lost or damaged the user will be presented with a dilemma: remain disconnected from the net- work until the firewall box is replaced, or accept the risk and connect the laptop directly to the unprotected network. -
Architecture of a Identity Based Firewall System
ARCHITECTURE OF A IDENTITY BASED FIREWALL SYSTEM Nenad Stojanovski1 and Marjan Gušev2 1 Makedonski Telekom AD, Orce Nikolov BB, 1000 Skopje, Macedonia [email protected] 2 Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Arhimedova b.b., PO Box 162, 1000 Skopje, Macedonia [email protected] ABSTRACT Classic firewall systems are built to filter traffic based on IP addresses, source and destination ports and protocol types. The modern networks have grown to a level where the possibility for users’ mobility is a must. In such networks, modern firewalls may introduce such complexity where administration can become very frustrating since it needs the intervention of a firewall administrator. The solution for this problem is an identity based firewall system. In this paper we will present a new design of a firewall system that uses the user’s identity to filter the traffic. In the design phase we will define key points which have to be satisfied as a crucial milestone for the functioning of the whole Identity based firewall system. KEYWORDS Identity based firewalls, user identity, firewalls, network security, computer networks, firewall systems design 1. INTRODUCTION Classic firewall systems are built to filter traffic based on source and destination IP addresses, source and destination ports and protocol types[11]. As Information technology moves forward and advances, classic firewalls start to become very robust and unusable when it comes to the transparent user experience. The main problem that arises from using classic firewalls in a modern dynamic environment is that users have to be mobile and have access to their resources. -
Cortafuegos Y Seguridad En El Internet”
INSTITUTO POLITÉCNICO NACIONAL ESCUELA SUPERIOR DE INGENIERÍA MECÁNICA Y ELÉCTRICA UNIDADAD CULHUACAN TESIS “CORTAFUEGOS Y SEGURIDAD EN EL INTERNET” Que como prueba escrita de su examen profesional para obtener el Título de: Ingeniero en Comunicaciones y Electrónica Presenta: EDGAR VICENTE JIMÉNEZ ÁVILA Asesores Ing. Gustavo Mendoza Campeche Lic. Martha Guadalupe Hernández Cuellar México D.F FEBRERO 2014. A mi padre Que gracias a su apoyo moral y económico me ha apoyado para la culminación de mis estudios y al mismo tiempo a la realización de esta obra, y que gracias a sus consejos me han ayudado a ser una mejor persona. Gracias papá TE AMO. A mi madre Gracias al amor y cariño que me has brindado, a los consejos para superarme día a día, al apoyo económico y moral para concluir mis estudios y de esta manera ser un profesionista y servir a la sociedad. A mis hermanas Gracias madrecita. TE AMO. Que gracias al apoyo moral, ánimos, cariño y consejos brindados que me han servido para poder concluir satisfactoriamente mis estudios. Gracias Fabiola, Cindy, Miriam. A toda mi familia Especialmente a mi abuelita Teresa, mi tío Fredy Macario, mi abuelito Macario, mi abuelita Costa, mi tía Marlene, mi tío Alberto, que me han enseñado que la A Yanel dedicación es sinónimo de triunfó. Gracias Gracias a tus consejos, a tus ánimos para no darme por vencido tan fácilmente y todo el cariño que me has brindado, que día con día me hacen ser una persona de bien para la sociedad, gracias por estar a mi lado en los momentos de alegría y de tristeza. -
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pipenightdreams osgcal-doc mumudvb mpg123-alsa tbb-examples libgammu4-dbg gcc-4.1-doc snort-rules-default davical cutmp3 libevolution5.0-cil aspell-am python-gobject-doc openoffice.org-l10n-mn libc6-xen xserver-xorg trophy-data t38modem pioneers-console libnb-platform10-java libgtkglext1-ruby libboost-wave1.39-dev drgenius bfbtester libchromexvmcpro1 isdnutils-xtools ubuntuone-client openoffice.org2-math openoffice.org-l10n-lt lsb-cxx-ia32 kdeartwork-emoticons-kde4 wmpuzzle trafshow python-plplot lx-gdb link-monitor-applet libscm-dev liblog-agent-logger-perl libccrtp-doc libclass-throwable-perl kde-i18n-csb jack-jconv hamradio-menus coinor-libvol-doc msx-emulator bitbake nabi language-pack-gnome-zh libpaperg popularity-contest xracer-tools xfont-nexus opendrim-lmp-baseserver libvorbisfile-ruby liblinebreak-doc libgfcui-2.0-0c2a-dbg libblacs-mpi-dev dict-freedict-spa-eng blender-ogrexml aspell-da x11-apps openoffice.org-l10n-lv openoffice.org-l10n-nl pnmtopng libodbcinstq1 libhsqldb-java-doc libmono-addins-gui0.2-cil sg3-utils linux-backports-modules-alsa-2.6.31-19-generic yorick-yeti-gsl python-pymssql plasma-widget-cpuload mcpp gpsim-lcd cl-csv libhtml-clean-perl asterisk-dbg apt-dater-dbg libgnome-mag1-dev language-pack-gnome-yo python-crypto svn-autoreleasedeb sugar-terminal-activity mii-diag maria-doc libplexus-component-api-java-doc libhugs-hgl-bundled libchipcard-libgwenhywfar47-plugins libghc6-random-dev freefem3d ezmlm cakephp-scripts aspell-ar ara-byte not+sparc openoffice.org-l10n-nn linux-backports-modules-karmic-generic-pae -
Index Images Download 2006 News Crack Serial Warez Full 12 Contact
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Escribe Agenda Package
BOARD OF COMMISSIONERS REVISED MEETING AGENDA January 11, 2021, 5:30 PM Virtual Meeting Held in Accordance with Public Act 254 of 2020 Zoom Virtual Meeting Meeting ID: 399-700-0062 / Password: LCBOC https://zoom.us/j/3997000062?pwd=SUdLYVFFcmozWnFxbm0vcHRjWkVIZz09 "The mission of Livingston County is to be an effective and efficient steward in delivering services within the constraints of sound fiscal policy. Our priority is to provide mandated services which may be enhanced and supplemented to improve the quality of life for all who work, reside and recreate in Livingston County." Pages 1. CALL MEETING TO ORDER 2. MOMENT OF SILENT REFLECTION 3. PLEDGE OF ALLEGIANCE TO THE FLAG 4. ROLL CALL 5. CORRESPONDENCE 3 a. Wexford County Resolution 20-30 In Support of Local Business 6. CALL TO THE PUBLIC 7. APPROVAL OF MINUTES 5 a. Minutes of Meeting Dated: January 4, 2021 b. Minutes of Meeting Dated: January 6, 2021 c. Closed Session Minutes Dated: January 6, 2021 8. TABLED ITEMS FROM PREVIOUS MEETINGS 9. APPROVAL OF AGENDA 10. REPORTS a. COVID-19 Vaccination Update Dianne McCormick, Public Health Officer 11. APPROVAL OF CONSENT AGENDA ITEMS Resolutions 2020-01-004 through 2020-01-008 a. 2021-01-004 12 Resolution Approving the Commissioner Assignments to Committees for 2021 – Board of Commissioners b. 2021-01-005 13 Resolution Authorizing the Approval of an EMS collections charge. c. 2021-01-006 15 Resolution Authorizing a Clinical Training Affiliation Agreement with Pittsfield Twp Fire Department to Provide Clinical Internship Services - Emergency Medical Services d. 2021-01-007 20 Resolution Authorizing the Purchase of a Five-Year CISCO Flex Subscription for the County’s Phone System from Logicalis Inc.