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Flexgw Ipsec VPN Image User Guide
FlexGW IPsec VPN Image User Guide Zhuyun Information Technology Co.,Ltd. www.cloudcare.cn Zhuyun Information Technology Co.,Ltd. Contents .......................................................................................................... .................................................................................................................. 1 Introduction 4 1.1 Software Compon.e..n..t.s................................................................................................................... 4 1.2 Login Description ................................................................................................................... 4 1.3 Function Description ....................................................................................................5 1.4 Typical Scenarios Des..c..r..i.p..t..i.o..n......................................................................................................5 1.5 Program Description .................................................................................6 1.6 Software Operation Command Summary ............................... 7 ............................................................................................................... 2 IPSec Site-to-Site VPN User Guide (VPC network scenario) 8 2.1 Start IPSec VPN.s..e..r..v..i.c..e.................................................................................................................8 2.2 Add new tunnel ................................................................................................................. -
Arxiv:1907.07120V1 [Cs.CY] 16 Jul 2019 1 Introduction That China Hindered Access to I2P by Poisoning DNS Resolu- Tions of the I2P Homepage and Three Reseed Servers
Measuring I2P Censorship at a Global Scale Nguyen Phong Hoang Sadie Doreen Michalis Polychronakis Stony Brook University The Invisible Internet Project Stony Brook University Abstract required flexibility for conducting fine-grained measurements on demand. We demonstrate these benefits by conducting an The prevalence of Internet censorship has prompted the in-depth investigation of the extent to which the I2P (invis- creation of several measurement platforms for monitoring ible Internet project) anonymity network is blocked across filtering activities. An important challenge faced by these different countries. platforms revolves around the trade-off between depth of mea- Due to the prevalence of Internet censorship and online surement and breadth of coverage. In this paper, we present surveillance in recent years [7, 34, 62], many pro-privacy and an opportunistic censorship measurement infrastructure built censorship circumvention tools, such as proxy servers, virtual on top of a network of distributed VPN servers run by vol- private networks (VPN), and anonymity networks have been unteers, which we used to measure the extent to which the developed. Among these tools, Tor [23] (based on onion rout- I2P anonymity network is blocked around the world. This ing [39,71]) and I2P [85] (based on garlic routing [24,25,33]) infrastructure provides us with not only numerous and ge- are widely used by privacy-conscious and censored users, as ographically diverse vantage points, but also the ability to they provide a higher level of privacy and anonymity [42]. conduct in-depth measurements across all levels of the net- In response, censors often hinder access to these services work stack. -
Implementation Single Account Pdc Vpn Based on Ldap
IMPLEMENTATION SINGLE ACCOUNT PDC VPN BASED ON LDAP Gregorius Hendita Artha Kusuma Teknik Informatika, Fakultas Teknik Universitas Pancasila [email protected] Abstrak Data is an important for the company. Centralized data storage to facilitate users for accessing data in the company. Data will be stored centrally with PDC (Primary Domain Controller). Build communicate between head office and branch office requires high cost for each connection is not enough to ensure safety and security of data. Exchange data between head office and branch office should be kept confidential. VPN (Virtual Private Network) makes communication more efficient, not only the cost affordable that connection, security and safety will be the primary facility of VPN (Virtual Private Network). Service were established in the system will be integrated using LDAP (Lightweight Directory Access Protocol) to create a single account in each services such as PDC (Primary Domain Controller) and VPN (Virtual Private Network). The purposes of this final project to design and implementation a system centralized data storage and build communicate between head office and branch office are integrated with LDAP (Lighweight Active Directory Protocol). Hopefully this system can give more advantage to each network users. Keyword: PDC, VPN, LDAP, Single Account. I. Introduction previous workstations. To support the performance of the employees of the company of course has a Centralized data storage makes it easy for users variety of network services are formed in it such as to access data. many companies need a ftp, mail server, file sharing etc. These services of centralized storage system, because the data is course have their respective accounts. -
Enabling TPM Based System Security Features
Enabling TPM based system security features Andreas Fuchs <[email protected]> Who am I ? ● 13 year on/off TPMs ● Fraunhofer SIT: Trustworthy Platforms ● TCG-member: TPM Software Stack WG ● Maintainer – tpm2-tss: The libraries – tpm2-tss-engine: The openssl engine – tpm2-totp: Computer-to-user attestation (mjg’s tpm-totp reimplemented for 2.0) 2 The hardware stack ● Trusted Platform Module (TPM) 2.0 – Smartcard-like capabilities but soldered in – Remote Attestation capabilities – As separate chip (LPC, SPI, I²C) – In Southbridge / Firmware – Via TEEs/TrustZone, etc – Thanks to Windows-Logos in every PC ● CPU – OS, TSS 2.0, where the fun is... 3 The TPM Software Stack 2.0 ● Kernel exposes /dev/tpm0 with byte buffers ● tpm2-tss is like the mesa of TCG specs ● TCG specifications: – TPM spec for functionality – TSS spec for software API ● tpm2-tss implements the glue ● Then comes core module / application integration – Think GDK, but OpenSSL – Think godot, but pkcs11 – Think wayland, but cryptsetup 4 The TSS APIs System API (sys) Enhanced SYS (esys) Feature API (FAPI) • 1:1 to TPM2 cmds • Automate crypto for • Spec in draft form HMAC / encrypted • TBimplemented • Cmd / Rsp sessions • No custom typedefs U serialization • Dynamic TCTI • JSON interfaces s • No file I/O loading • Provides Policy e • No crypto • Memory allocations language r • No heap / malloc • No file I/O • Provides keystore S p TPM Command Transmission Interface (tss2-tcti) p a Abstract command / response mechanism, • No crypto, heap, file I/O a Decouple APIs -
Master Thesis
Master's Programme in Computer Network Engineering, 60 credits MASTER Connect street light control devices in a secure network THESIS Andreas Kostoulas, Efstathios Lykouropoulos, Zainab Jumaa Network security, 15 credits Halmstad 2015-02-16 “Connect street light control devices in a secure network” Master’s Thesis in Computer Network engineering 2014 Authors: Andreas Kostoulas, Efstathios Lykouropoulos, Zainab Jumaa Supervisor: Alexey Vinel Examiner: Tony Larsson Preface This thesis is submitted in partial fulfilment of the requirements for a Master’s Degree in Computer Network Engineering at the Department of Information Science - Computer and Electrical Engineering, at University of Halmstad, Sweden. The research - implementation described herein was conducted under the supervision of Professor Alexey Vinel and in cooperation with Greinon engineering. This was a challenging trip with both ups and downs but accompanied by an extend team of experts, always willing to coach, sponsor, help and motivate us. For this we would like to thank them. We would like to thank our parents and family for their financial and motivational support, although distance between us was more than 1500 kilometres. Last but not least we would like to thank our fellow researchers and friends on our department for useful discussions, comments, suggestions, thoughts and also creative and fun moments we spend together. i Abstract Wireless communications is a constantly progressing technology in network engineering society, creating an environment full of opportunities that are targeting in financial growth, quality of life and humans prosperity. Wireless security is the science that has as a goal to provide safe data communication between authorized users and prevent unauthorized users from gaining access, deny access, damage or counterfeit data in a wireless environment. -
Kommentarer Till Utgåvan Debian 10 (Buster), 64-Bit PC
Kommentarer till utgåvan Debian 11 (bullseye), 64-bit PC The Debian Documentation Project (https://www.debian.org/doc/) 5 oktober 2021 Kommentarer till utgåvan Debian 11 (bullseye), 64-bit PC Detta dokument är fri mjukvara; du kan vidaredistribuera det och/eller modifiera det i enlighet med villkoren i Free Software Foundations GNU General Public License version 2. Detta program är distribuerat med förhoppning att det ska vara användbart men HELT UTAN GARAN- TIER; inte ens underförstådd garanti om SÄLJBARHET eller att PASSA ETT SÄRSKILT SYFTE. Läs mer i GNU General Public License för djupare detaljer. Du borde ha fått en kopia av GNU General Public License tillsammans med det här programmet; om inte, skriv till Free Software Foundation, Inc., 51 Franklin Street. Fifth Floor, Boston, MA, 02110-1301 USA. Licenstexten kan också hämtas på https://www.gnu.org/licenses/gpl-2.0.html och /usr/ share/common-licenses/GPL-2 på Debian-system. ii Innehåll 1 Introduktion 1 1.1 Rapportera fel i det här dokumentet . 1 1.2 Bidra med uppgraderingsrapporter . 1 1.3 Källor för det här dokumentet . 2 2 Vad är nytt i Debian 11 3 2.1 Arkitekturer med stöd . 3 2.2 Vad är nytt i distributionen? . 3 2.2.1 Skrivbordsmiljöer och kända paket . 3 2.2.2 Utskrifter och scanning utan drivrutiner . 4 2.2.2.1 CUPS och utskrifter utan drivrutiner . 4 2.2.2.2 SANE och scannrar utan drivrutiner . 4 2.2.3 Nytt generellt kommando ”open” . 5 2.2.4 Control groups v2 . 5 2.2.5 Beständig systemd-journal . -
Applications Log Viewer
4/1/2017 Sophos Applications Log Viewer MONITOR & ANALYZE Control Center Application List Application Filter Traffic Shaping Default Current Activities Reports Diagnostics Name * Mike App Filter PROTECT Description Based on Block filter avoidance apps Firewall Intrusion Prevention Web Enable Micro App Discovery Applications Wireless Email Web Server Advanced Threat CONFIGURE Application Application Filter Criteria Schedule Action VPN Network Category = Infrastructure, Netw... Routing Risk = 1-Very Low, 2- FTPS-Data, FTP-DataTransfer, FTP-Control, FTP Delete Request, FTP Upload Request, FTP Base, Low, 4... All the Allow Authentication FTPS, FTP Download Request Characteristics = Prone Time to misuse, Tra... System Services Technology = Client Server, Netwo... SYSTEM Profiles Category = File Transfer, Hosts and Services Confe... Risk = 3-Medium Administration All the TeamViewer Conferencing, TeamViewer FileTransfer Characteristics = Time Allow Excessive Bandwidth,... Backup & Firmware Technology = Client Server Certificates Save Cancel https://192.168.110.3:4444/webconsole/webpages/index.jsp#71826 1/4 4/1/2017 Sophos Application Application Filter Criteria Schedule Action Applications Log Viewer Facebook Applications, Docstoc Website, Facebook Plugin, MySpace Website, MySpace.cn Website, Twitter Website, Facebook Website, Bebo Website, Classmates Website, LinkedIN Compose Webmail, Digg Web Login, Flickr Website, Flickr Web Upload, Friendfeed Web Login, MONITOR & ANALYZE Hootsuite Web Login, Friendster Web Login, Hi5 Website, Facebook Video -
106-Atvar Jattana.Cdr
Research Paper Engineering E-ISSN No : 2454-9916 | Volume : 3 | Issue : 5 | May 2017 VPNBROADBANDLANSHARINGWITHWI-FINANOBASED USBADAPTER Atvar Singh 1 | C.Er. Harisharan Aggarwal 2 1 Department of Electronics and Communication Engg., Guru Gobind Singh College Of Engg. & Technology, Guru kashi University, Talwandi sabo, Bathinda, Punjab, India. 2 HOD, Department of Electronics and Communication Engg., Guru Gobind Singh College Of Engg. & Technology, Guru kashi University, Talwandi sabo, Bathinda, Punjab, India ABSTRACT Virtual Private Network (VPN) is a network technology that creates a secure network connection over a public network such as the Internet or a private network owned by a service provider. Large corporations, educational institutions, and government agencies use VPN (wimax) technology to enable remote users to securely connect to a private network. Many corporations are very seriously concerned about VPN security of networks. In this regards, the VPN (wimax) modem and antenna standard was developed to the standard address the security problems, no doubts virtual private networking is famous for good security for the clients past few years. But VPN Broadband connection is a major problem not make a multiuser clients, because it is a single user. In the thesis work ,VPN (wimax) broadband internet connect through Wi-Fi on android mobile with the help of nano technology based mini adapter clients sharing a broadband LAN also we make with the help of nano adapter make a multiuser KEYWORDS: Wimax antenna, Broadband VPN, Nano mini adapter(IEEE 802.11) I. INTRODUCTION Service (QOS) management over the Internet can cause packet loss and other per- A Virtual private network (VPN) extends a private network across a public net- formance issues. -
AWS Site-To-Site VPN User Guide AWS Site-To-Site VPN User Guide
AWS Site-to-Site VPN User Guide AWS Site-to-Site VPN User Guide AWS Site-to-Site VPN: User Guide Copyright © Amazon Web Services, Inc. and/or its affiliates. All rights reserved. Amazon's trademarks and trade dress may not be used in connection with any product or service that is not Amazon's, in any manner that is likely to cause confusion among customers, or in any manner that disparages or discredits Amazon. All other trademarks not owned by Amazon are the property of their respective owners, who may or may not be affiliated with, connected to, or sponsored by Amazon. AWS Site-to-Site VPN User Guide Table of Contents What is Site-to-Site VPN ..................................................................................................................... 1 Concepts ................................................................................................................................... 1 Working with Site-to-Site VPN ..................................................................................................... 1 Site-to-Site VPN limitations ......................................................................................................... 2 Pricing ...................................................................................................................................... 2 How AWS Site-to-Site VPN works ........................................................................................................ 3 Site-to-Site VPN Components ..................................................................................................... -
Threat Modeling and Circumvention of Internet Censorship by David Fifield
Threat modeling and circumvention of Internet censorship By David Fifield A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Computer Science in the Graduate Division of the University of California, Berkeley Committee in charge: Professor J.D. Tygar, Chair Professor Deirdre Mulligan Professor Vern Paxson Fall 2017 1 Abstract Threat modeling and circumvention of Internet censorship by David Fifield Doctor of Philosophy in Computer Science University of California, Berkeley Professor J.D. Tygar, Chair Research on Internet censorship is hampered by poor models of censor behavior. Censor models guide the development of circumvention systems, so it is important to get them right. A censor model should be understood not just as a set of capabilities|such as the ability to monitor network traffic—but as a set of priorities constrained by resource limitations. My research addresses the twin themes of modeling and circumvention. With a grounding in empirical research, I build up an abstract model of the circumvention problem and examine how to adapt it to concrete censorship challenges. I describe the results of experiments on censors that probe their strengths and weaknesses; specifically, on the subject of active probing to discover proxy servers, and on delays in their reaction to changes in circumvention. I present two circumvention designs: domain fronting, which derives its resistance to blocking from the censor's reluctance to block other useful services; and Snowflake, based on quickly changing peer-to-peer proxy servers. I hope to change the perception that the circumvention problem is a cat-and-mouse game that affords only incremental and temporary advancements. -
3. Security and Reliability
3. Security and Reliability 3.1. Excellent Security and Reliability, Superior to Hardware You might have a question that whether SoftEther VPN is really secure as same as hardware VPN products or not. Someone might think that software VPNs is inferior to hardware VPNs. Of course, SoftEther VPN is implemented as a software code, not hardware as either specific integrated circuit. But it is absolutely correct that SoftEther VPN has an adequate security fulfillment as same as hardware's one, and moreover it might be superior to hardware VPN. What is Hardware VPN Products? Please see the fact that almost all hardware VPNs on the today's market is not a pure hardware. They are nearly software program, actually. Do you have any experience to open the top cover of any Cisco Router? You can see that inside devices on the Cisco Router is almost same as today's computer. The major differences are only the architecture of CPU. To reduce the manufacturing cost, Cisco and other VPN vendors adopts cheaper CPU than computers, such as MIPS, ARM and PowerPC. Anything more important differences are there between a desktop computer and a hardware VPN router. And you can analyze the inside mechanism of Cisco Router by some information leaked from the Internet or books. Cisco VPN Router and other manufacturer's router are running the software operating system on their device. On the operating system, the routing and VPN session-managing software is also working to process VPN communication. Virtually almost all important processes are implemented as software, not as hardware, on the existing hardware VPN products in the today market. -
Building Ipv6 Based Tunneling Mechanisms for Voip Security
WK,QWHUQDWLRQDO0XOWL&RQIHUHQFHRQ6\VWHPV6LJQDOV 'HYLFHV Building IPv6 Based Tunneling Mechanisms for VoIP Security Amzari J. Ghazali, Waleed Al-Nuaimy, Ali Al-Ataby, Majid A. Al-Taee Department of Electrical Engineering and Electronics University of Liverpool, UK e-mail: {amzari.ghazali, wax, ali.ataby, altaeem}@liv.ac.uk Abstract—Internet protocol version 6 (IPv6) was such as Toredo, 6to4 and manual configuration [4]. developed to resolve the IPv4 address exhaustion Despite the benefits of using IPv6, there are still problem and support new features. However, IPv6 still challenges and obstacles in implementing and comprises some defectiveness of IPv4 protocol such as practically using IPv6 VoIP [5]. The issues of the multimedia security. This paper presents IPv6-based transition from the current IPv4 network to IPv6 as tunneling mechanisms for securing Voice over Internet Protocol (VoIP) network traffic using OpenSwan IPSec well as VoIP performance for both IP versions need (site-to-site). IPSec with Triple Data Encryption to be assessed and compared. Algorithm (3DES) is used to create a Virtual Private Evaluation of VoIP performance with IPSec in Network (VPN) on top of existing physical networks. IPv4, IPv6 and 6to4 networks using Teredo for NAT Secure communication mechanisms can therefore be provided for data and control information transmitted traversal in a test LAN was previously reported in between networks. Secure VoIP-oriented mechanisms [6]. The testbed used softphones to setup calls, and on VPN IPv6 have been designed, implemented and background traffic was generated to create congestion tested successfully using open source approaches. The on the links and routers. The results demonstrated the performance of the IPv6 VoIP network is assessed feasibility of using a single Linux box to handle experimentally in terms of several performance metrics IPSec, 6to4 and NAT processing, and it was found including jitter, throughput and packet loss rate.