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50 results tagged networking  ✕
Sample Apps  |  Cast  |  Google Developers https://developers.google.com/cast/docs/sample-apps
Tue 21 Apr 2020 09:32:12 AM CEST
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Sample apps are examples of working code that you can browse, run, and learn from to get started developing your own Google Cast app.
development documentation google multimedia networking online resources streaming
Download PuTTY: latest release https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html
Tue 19 Nov 2019 11:25:53 AM CET
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This page contains download links for the latest released version of PuTTY.
networking online repository security tools updates
Cisco Firewall Best Practices https://tools.cisco.com/security/center/resources/firewall_best_practices
Fri 18 Oct 2019 02:41:06 PM CEST
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This document provides administrators and engineers guidance on securing Cisco firewall appliances, which increases the overall security of an end-to end architecture. The functions of network devices are structured around three planes: management, control, and data. This document is structured around security operations (best practices) and the three functional planes of a network. In addition, this document provides an overview of each included feature and references to related documentation. For the purposes of this document, all mentions of "Cisco firewall" refer explicitly to the Cisco ASA Adaptive Security Appliances, though the concepts may apply to other firewall and security devices.
bestpractices cisco configuration documentation knowledge networking online security useful
IPv4Info - Tools http://ipv4info.com/tools/
Tue 24 Sep 2019 11:53:32 AM CEST
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Features:

- ipv4 allocation table
- some registration data of all assigned and allocated blocks
- AS information and announced own prefixes
- geolocation data for ipv4 addresses
- all domains for ip address

Limitations:

- 500 requests from registered users within 24 hours.
- 200 requests from one ip address within 24 hours for unregistered users.

Data sources:

- registered blocks: regional registers: RIPE NCC, ARIN, APNIC, LACNIC, AFRINIC
- BGP table: Route Views Project
- Geolocation data: NetLoad, MAXMIND, IpGeoBase.ru, local additions. This site or product includes IP2Location LITE data available from http://lite.ip2location.com.
- Icons: Fugue Icons
- Flags: flags.blogpotato.de and Maxmind
- Social icons: komodomedia
internet knowledge networking online tools
Note: Does tcpdump bypass iptables? https://superuser.com/a/925332
Mon 16 Sep 2019 03:18:15 PM CEST
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This is a nice question.

As a matter of fact, tcpdump is the first software found after the wire (and the NIC, if you will) on the way IN, and the last one on the way OUT.

Wire -> NIC -> tcpdump -> netfilter/iptables

iptables -> tcpdump -> NIC -> Wire
Thus it sees all packets reaching your interface, and all packets leaving your interface. Since packets to port 53 do not get a reply, as seen by tcpdump, you have successfully verified that your iptables rules have been correctly configured.

EDIT

Perhaps I should add a few details. tcpdump is based on libpcap, a library which creates a packet socket. When a regular packet is received in the network stack, the kernel first checks to see whether there is a packet socket interested in the newly arrived packet and, if there is one, it forwards the packet to that packet socket. If the option ETH_P_ALL is chosen, then all protocols go thru the packet socket.

libpcap implements one such packet socket with the option activated, keeps a copy for its own use, and duplicates the packet back onto the network stack, where it is processed by the kernel in the usual way, including passing it first to netfilter, the kernel-space counterpart of iptables. Same thing, in reverse order (i.e., first netfilter then last the passage thru the packet socket), on the way out.

Is this prone to hacking? But of course. There are certainly proof-of-concept rootkits using libpcap to intercept communications destined to the rootkit before the firewall can lay its hand on them. But even this pales in comparison with the fact that a simple Google query unearths working code hiding traffic even from libpcap. Still, most professionals think the advantages vastly outweigh the disadvantages, in debugging network packet filters.
analysis debug knowledge networking tools
Identifying Incidents Using Firewall and Cisco IOS Router Syslog Events - Cisco https://www.cisco.com/c/en/us/about/security-center/identify-incidents-via-syslog.html
Fri 12 Jul 2019 05:48:41 PM CEST
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Syslog messages from transit network devices can provide insight into and context for security events that may not be available from other sources. This insight aids in determining the validity and extent of an incident. Within the context of a security incident, administrators can use syslog messages to understand communication relationships, timing, and, in some cases, the attacker's motives and/or tools. These events should be considered complementary and should be used in conjunction with other forms of network monitoring that may already be in place.
cisco equipments hardware it knowledge logs networking online security
HOME - NAT64check https://www.nat64check.org/
Thu 03 Jan 2019 11:50:07 AM CET
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NAT64Check is a tool developed by the Internet Society in collaboration with Stichting IPv6 Nederland, Go6, SJM Steffann, Internetbureau Max and Simply Understand. This allows you to enter the URL of a particular website, and then run tests over IPv4, IPv6 and NAT64 in order to check whether the website is actually reachable in each case, whether identical web pages are returned, and whether all the resources such as images, stylesheets and scripts load correctly. It also compares responsiveness using the different protocols, therefore  allowing network and system administrators to easily identify anything is ‘broken’, to pinpoint where any non-IPv6 compatible elements need to be fixed.
debug internet IPv6 knowledge networking online tools
System Administration and Security Tutorials - omnisecu.com http://www.omnisecu.com/sitemap.php
Thu 03 May 2018 12:05:21 PM CEST
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Welcome to OmniSecu.com (Free Networking Tutorials, Free System Administration Tutorials and Free Security Tutorials). Here you can gain the basic and intermediate level knowledge in Networking, Network Security, and System Security absolutely FREE!. We have organized all technical information for a beginner in Networking, Network Security and System Security here. We will guide you step-by-step in the learning process, and make sure that you will become a master. Remember, nothing can replace knowledge in IT world.
knowledge networking repository security systems tech
Tobi Oetiker - Tobi Oetiker's Toolbox https://tobi.oetiker.ch/hp/
Wed 12 Jul 2017 05:14:39 PM CEST
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I work for OETIKER+PARTNER AG a consultancy company based in Olten, Switzerland. We use OpenSource Software extensively in all our projects. So I made it a habit to open source code we write whenever possible. Below is a list of notable projects I have created or been involved with over the years.
development networking online opensource project repository security tools
Internet Subway Map - Information Geographies http://geography.oii.ox.ac.uk/?page=internet-tube
Sat 24 Jun 2017 11:52:06 AM CEST
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This schematic map shows a simplification of the world’s network of submarine fibre-optic cables.
internet knowledge networking
FrameIP, Un site pour les spécialistes IP - TcpIp - Voip - Vpn - Ipv4 - Ipv6 http://www.frameip.com/
Thu 18 May 2017 02:09:38 PM CEST
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La communauté FrameIP partage gratuitement ses documentations et codes source concernant le monde des réseaux TCPIP.

Visité par plus de 5000 personnes par jours, FrameIP.com nécessite un hébergement performant, une richesse des documentations et un entretient permanent.

Pour continuer à encore mieux partager, votre participation à la communauté sera la bienvenue.
community computing knowledge networking online sharing telecommunications tools
Command-Line Tools – Syslog Watcher Website https://syslogwatcher.com/cmd-tools/
Tue 02 May 2017 11:19:38 AM CEST
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A helpful set network utilities for Windows operator and network administrators. All of the tools supports the following features:

Command line interface (CLI)
Designed for use in script/batch files
Ready for IPv4 and IPv6 networks
Windows XP – 10 compatible
cli debug free networking share tools
Free IP address to ASN database https://iptoasn.com/
Sun 30 Apr 2017 07:13:30 PM CEST
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Free IP address to ASN database
Downloadable, easy to parse, updated hourly.
api data development knowledge networking opensource project share
Détails All - K-net entier https://k-net-stats.lafibre.info/?as=All
Fri 14 Apr 2017 04:54:54 PM CEST
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Ce site et ses graphiques sont réalisés à partir de données issues de As24904 du Fournisseur d'accès internet K-Net.

Mes remerciements à Vivien & Lafibre.info, Jack pour leur collaboration.
Ce site utilise ChartJs pour générer les graphiques.

Contact, remarques, signalements de bugs: TiTiDu01, ou sur lafibre.info.
data graphic internet knowledge networking share stats telecommunications
Main :: SixXS - IPv6 Deployment & Tunnel Broker https://www.sixxs.net/main/
Thu 13 Apr 2017 05:28:15 PM CEST
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 SixXS (Six Access) is a free, non-profit, non-cost service for Local Internet Registries (LIR's) and endusers. The main target is to create a common portal to help company engineers find their way with IPv6 networks deploying IPv6 to their customers in a rapid and controllable fashion. To reach these targets we are providing a whitelabel IPv6 Tunnel Broker and Ghost Route Hunter, an IPv6 route monitoring tool and various other services to help out where needed.
community internet networking router telecommunications tunneling
BGP Looking Glass Database http://www.bgplookingglass.com/
Mon 10 Apr 2017 01:58:33 PM CEST
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Welcome to the biggest and most updated BGP Looking Glass and Traceroute list in internet You´ll find out 1073 Looking Glass Servers updated at 02/14/2017. If you find a broken link, or you want to announce a new looking glass site, please feel free to send us an email to info@bgplookingglass.com.
community data internet knowledge list networking protocols router telecommunications
Stucco-Data http://stucco.github.io/data/
Mon 10 Apr 2017 01:31:26 PM CEST
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This is a list of data sources that may be useful to cyber security. We are documenting these sources as part of an ongoing project, Stucco.
community computing data exploit knowledge list malware networking resources security
LDAP Admin - a free LDAP directory browser and editor http://www.ldapadmin.org/
Fri 07 Apr 2017 03:39:36 PM CEST
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Ldap Admin is a free Windows LDAP client and administration tool for LDAP directory management. This application lets you browse, search, modify, create and delete objects on LDAP server. It also supports more complex operations such as directory copy and move between remote servers and extends the common edit functions to support specific object types (such as groups and accounts).

You can use it to manage Posix groups and accounts, Samba accounts and it even includes support for Postfix MTA. Ldap Admin is free Open Source software distributed under the GNU General Public License.
admin configuration debug ldap networking server tools
Cisco Services for IPS https://tools.cisco.com/security/center/ipshome.x?i=62
Thu 06 Apr 2017 03:03:00 PM CEST
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 Cisco Services for IPS protects and enhances the effectiveness of the Cisco Intrusion Prevention System. Supported by the Cisco Global Security Intelligence organization, Cisco Services for IPS delivers continuously updated, comprehensive, and accurate detection technology to identify and block fast-moving and emerging threats.
cisco configuration documentation equipments knowledge list networking security tools
Dan Farmer http://fish2.com/security/
Wed 05 Apr 2017 01:52:16 PM CEST
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A bit of my life. You can try to reach me: zen @ either fish2.com or trouble.org. I sometimes jot things down at trouble.
blog computing forensics knowledge networking security writing
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