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Category Archives: Networks

How to configure networking with Netplan

In this article I will give examples of network configuration using Netplan.
I also note that for example, starting with Ubuntu version 18.04, Netplan is used by default.

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Posted byVyacheslav05.04.202002.11.2023Posted inLinux, NetworksTags: Netplan1 Comment on How to configure networking with Netplan

Boost UDP Transaction Performance

File Format: PDF

File size: 3 Mb

Author: Toshiaki Makita
NTT Open Source Software Center

Continue reading “Boost UDP Transaction Performance”
Posted byVyacheslav25.03.202027.09.2021Posted inManuals, Networks, TheoryTags: DDoS, PerformanceLeave a comment on Boost UDP Transaction Performance

How to add static routes in Windows

Let’s say we have a network with the following data:

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Posted byVyacheslav18.02.202018.02.2020Posted inNetworks, WindowsLeave a comment on How to add static routes in Windows

NAT Modules for VPN, FTP, SIP

Let’s say SNAT or masquerading is configured on a Linux server, for example, as I described in article Ubuntu IP Masquerading (NAT). But if many NAT clients connect to external PPTP, FTP, SIP servers for NAT, then they will have connection problems.

Continue reading “NAT Modules for VPN, FTP, SIP”
Posted byVyacheslav05.02.202005.02.2020Posted inLinux, NetworksTags: NATLeave a comment on NAT Modules for VPN, FTP, SIP

Installing and using ipt_NETFLOW

ipt_NETFLOW – fast NetFlow traffic sensor, consists of a kernel module and iptables, supports NetFlow v5, v9, v10(IPFIX).

Continue reading “Installing and using ipt_NETFLOW”
Posted byVyacheslav05.02.202014.02.2023Posted inLinux, NetworksTags: NetFlowLeave a comment on Installing and using ipt_NETFLOW

Installing and using Nfsen

Nfsen is an open-source Netflow collector and analyzer that displays statistics in a web interface in the form of graphs.

Continue reading “Installing and using Nfsen”
Posted byVyacheslav03.02.202006.04.2020Posted inLinux, NetworksTags: NetFlow2 Comments on Installing and using Nfsen

Installing and using Nfdump

Nfdump is a collection of tools for collecting and processing netflow data.

Continue reading “Installing and using Nfdump”
Posted byVyacheslav30.01.202007.02.2023Posted inLinux, NetworksTags: NetFlow1 Comment on Installing and using Nfdump

Installing and configuring PPTPd server

Below I will describe how pptpd is installed and configured. On the test I will install in Ubuntu Server 18.04.

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Posted byVyacheslav29.01.202029.01.2020Posted inLinux, NetworksTags: PPTP, VPNLeave a comment on Installing and configuring PPTPd server

Installing and configuring fprobe

On the test, I will install the fprobe sensor, which will collect statistics from network interfaces and transmit it to the collector.

Continue reading “Installing and configuring fprobe”
Posted byVyacheslav24.01.202031.01.2020Posted inLinux, Networks, SecurityTags: NetFlowLeave a comment on Installing and configuring fprobe

Installing and using Speedtest CLI

In this article, I will give an example of installing and running the Speedtest CLI.

Continue reading “Installing and using Speedtest CLI”
Posted byVyacheslav16.01.2020Posted inLinux, NetworksTags: speedtest2 Comments on Installing and using Speedtest CLI

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