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Category Archives: Networks

Configuring RPS (Receive Packet Steering)

Receive Packet Steering (RPS) is a software implementation of RSS. Useful for example when there are fewer interrupts on the network interface than the processor cores.

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Posted byVyacheslav02.02.202102.02.2021Posted inLinux, NetworksTags: PerformanceLeave a comment on Configuring RPS (Receive Packet Steering)

Hyper-V Network Configuration

I will give an example of creating virtual switches, configuring network and NAT in Hyper-V.

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Posted byVyacheslav20.07.202020.07.2020Posted inLinux, NetworksTags: Hyper-VLeave a comment on Hyper-V Network Configuration

Netplan. Adding Routes

I’ll give an example of adding routes in the Netplan configuration.

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Posted byVyacheslav06.07.202008.07.2020Posted inLinux, NetworksTags: NetplanLeave a comment on Netplan. Adding Routes

VLAN Generation Script for Netplan

Once it was necessary to add several hundred VLANs without IP addresses to the Netplan configuration and in order to simplify the process, I came up with the following script:

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Posted byVyacheslav23.06.202001.07.2020Posted inNetworks, ScriptsTags: NetplanLeave a comment on VLAN Generation Script for Netplan

Changing gc_thresh on Linux

In this article I will give an example of changing gc_thresh on Linux, this parameter usually needs to be increased on highly loaded access servers.

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Posted byVyacheslav10.04.202010.04.2020Posted inLinux, NetworksTags: ARP, NAT, Performance1 Comment on Changing gc_thresh on Linux

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 byVyacheslav05.04.202024.12.2020Posted 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

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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.

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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).

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Posted byVyacheslav05.02.202013.10.2022Posted inLinux, NetworksTags: NetFlowLeave a comment on Installing and using ipt_NETFLOW

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