VirtualTam's bookmarks

1. High-Speed Packet Transmission in Go: From net.Dial to AF_XDP 2024-03-31

   tags: linux/kernel, linux/kernel/ebpf, network/bgp, network/packet, network/router, network/socket, programming/go

   [ permalink ]

   • Building an XDP (eXpress Data Path) based BGP peering router
   • atoonk/ping-aws-ips - ping all AWS IP addresses to see how many ec2 instances AWS has at any given time
   • atoonk/go-pktgen - Go Packet Generator
2. HAProxy - TLS Termination Setup 2023-07-24

   tags: cryptography/encryption, network/http, network/http-server/haproxy, network/reverse-proxy, network/transport-layer-security, security

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   • Traffic Routing - Rewrite Requests
   • Client IP Preservation - X-Forwarded-For
   • HAProxy & HTTP Strict Transport Security (HSTS)
   • Secure Cookies Using HAProxy Enterprise
3. netaddr.IP: a new IP address type for Go 2022-11-12

   tags: network/ip, programming/go

   [ permalink ]

   • Go at Tailscale
4. How to Get A Docker Container IP Address - Explained with Examples 2021-04-05

   tags: command-line, linux/container/docker, network, network/dhcp

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5. What is the IPv6 equivalent to IPv4 RFC1918 addresses? - Server Fault 2020-03-31

   tags: linux, network, network/ip, network/ipv4, network/ipv6

   [ permalink ]

   • https://tools.ietf.org/html/rfc4193
   • https://en.wikipedia.org/wiki/Unique_local_address
   • https://github.com/transumption/subnetgen
   • https://github.com/adeverteuil/bash-ula-generator
6. ipaddr filter — Ansible Documentation 2019-09-19

   tags: configuration-management/ansible, jinja, network, network/ip, programming/python

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7. Amazon Web Services | Auto-scale bind to an elastic IP? 2019-09-09

   tags: cloud, cloud/aws, network, network/firewall, network/ip

   [ permalink ]

   Use case:

   • Set up an AutoScaling Group with exactly 1 min/max/desired instance
   • Attach an Elastic IP to the active instance

   Usually for interoperability reasons and/or IP-based network rules (80's firewall anyone?).

   • https://stackoverflow.com/questions/34849360/how-to-assign-eip-to-autoscaling-group-of-vpc-in-cloudformation-template
   • https://www.reddit.com/r/aws/comments/6k3gb2/auto_assign_eip/
8. Blaeu, creating measurements on RIPE Atlas probes 2019-04-15

   tags: internet, internet-service-provider, network, network/dns, network/ip, sysadmin

   [ permalink ]

   • https://atlas.ripe.net/
   • https://www.ripe.net/manage-ips-and-asns/resource-management/faq/independent-resources/phase-three/what-is-a-local-internet-registry-lir
   • https://labs.ripe.net/Members/stephane_bortzmeyer/using-ripe-atlas-to-debug-network-connectivity-problems
   • https://github.com/RIPE-Atlas-Community/ripe-atlas-community-contrib
   • https://www.bortzmeyer.org/dns-over-tls-atlas-measures.html
9. Network socket statistics with Go 2019-04-03

   tags: linux, network, network/socket, programming/go

   [ permalink ]

   • https://github.com/cakturk/go-netstat
   • https://github.com/drael/GOnetstat (does not rely on the 'net' package, homemade IP to integer conversion)
   • https://github.com/vishvananda/netlink
10. Every Linux networking tool I know - The poster 2019-03-15

    tags: linux, network, network/ip, network/packet, network/tcp, network/udp, observability, statistics, system, traffic

    [ permalink ]
11. netaddr - A network address manipulation library for Python 2019-02-06

    tags: network, network/ip, programming/python, subnet

    [ permalink ]

    • https://github.com/drkjam/netaddr/tree/master
12. EC2 networking 2018-09-20

    tags: cloud/aws, network, network/ip

    [ permalink ]

    • https://serverfault.com/questions/706560/assign-public-ip-not-elastic-ip-after-instance-launched
    • https://serverfault.com/questions/628559/ec2-instances-in-vpc-and-access-to-the-internet
13. iproute2/iproute2.git - Iproute2 routing commands and utilities 2018-09-03

    tags: command-line, ethernet, hardware, linux, network, network/ip, wifi

    [ permalink ]

    • https://en.wikipedia.org/wiki/Iproute2
    • https://wiki.archlinux.org/index.php/Network_configuration
    • https://www.digitalocean.com/community/tutorials/how-to-use-iproute2-tools-to-manage-network-configuration-on-a-linux-vps
14. iptables 2018-07-04

    tags: linux, linux/iptables, network, network/firewall, network/router, sysadmin

    [ permalink ]

    Documentation:

    • https://www.netfilter.org/documentation/index.html
    • https://www.netfilter.org/documentation/HOWTO//netfilter-hacking-HOWTO.html
    • https://www.netfilter.org/documentation/HOWTO//networking-concepts-HOWTO.html
    • https://www.netfilter.org/documentation/HOWTO//NAT-HOWTO.html
    • https://www.netfilter.org/documentation/HOWTO//packet-filtering-HOWTO.html
      • https://www.netfilter.org/documentation/HOWTO//packet-filtering-HOWTO-6.html
      • https://www.netfilter.org/documentation/HOWTO//packet-filtering-HOWTO-7.html

    Articles:

    • https://www.digitalocean.com/community/tutorials/how-the-iptables-firewall-works
    • https://www.digitalocean.com/community/tutorials/how-to-list-and-delete-iptables-firewall-rules
    • https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands
    • https://www.digitalocean.com/community/tutorials/a-deep-dive-into-iptables-and-netfilter-architecture
    • https://www.digitalocean.com/community/tutorials/how-to-choose-an-effective-firewall-policy-to-secure-your-servers

    How-tos:

    • https://wiki.centos.org/HowTos/Network/IPTables
    • https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-iptables-on-ubuntu-14-04

    Routing:

    • https://www.frozentux.net/iptables-tutorial/iptables-tutorial.html
    • https://www.frozentux.net/iptables-tutorial/images/tables_traverse.jpg
    • https://www.frozentux.net/iptables-tutorial/images/table_subtraverse.jpg
    • https://upload.wikimedia.org/wikipedia/commons/3/37/Netfilter-packet-flow.svg

    RHEL Documentation:

    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-common_iptables_filtering
    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-forward_and_nat_rules
    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-malicious_software_and_spoofed_ip_addresses
    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-iptables_and_connection_tracking
    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-iptables
    • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-setting_and_controlling_ip_sets_using_iptables
15. How to get a Docker container's IP address from the host? - Stack Overflow 2018-06-29

    tags: address, linux/container, linux/container/docker, network, network/ip

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16. Anatomy of a Linux DNS Lookup – Part I – zwischenzugs 2018-06-19

    tags: linux, network, network/dns, network/ip

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    • https://zwischenzugs.com/2018/06/18/anatomy-of-a-linux-dns-lookup-part-ii/
17. networking - Linux Command line tool to work with netmasks / CIDR notation - Server Fault 2018-05-15

    tags: command-line, linux, network, network/ip, subnet

    [ permalink ]

    • http://jodies.de/ipcalc
    • http://deepspace6.net/projects/ipv6calc.html
    • http://www.routemeister.net/projects/sipcalc/
    • https://www.linux.com/learn/intro-to-linux/2017/8/manipulate-ipv6-addresses-ipv6calc
    • https://www.cyberciti.biz/tips/perform-simple-manipulation-of-ip-addresse.html
    • https://technicalworldforyou.blogspot.fr/2013/06/ipcalc-command-line-tool-for.html
    • https://github.com/troglobit/netcalc
18. High Speed Networking: Open Sourcing our Kernel Bypass Work - BBC R&D 2018-05-04

    tags: linux, network, network/packet, performance, stream, video

    [ permalink ]

    • https://www.smpte.org/st-2110
    • https://www.bbc.co.uk/rd/blog/2015-10-streaming-video-on-10-gigabit-ethernet-and-beyond
    • https://www.bbc.co.uk/rd/blog/2016-05-ip-studio-at-the-uk-network-operators-forum
    • https://www.bbc.co.uk/rd/projects/cloud-fit-production
19. Vagrant and VirtualBox "NAT Network" adapter 2018-04-27

    tags: network, virtualization/vagrant, virtualization/virtualbox

    [ permalink ]

    • https://github.com/hashicorp/vagrant/issues/2779
    • https://github.com/hashicorp/vagrant/issues/6252
    • https://github.com/hashicorp/vagrant/issues/7635
    • https://www.virtualbox.org/manual/ch06.html
    • https://www.vagrantup.com/docs/virtualbox/networking.html
    • https://superuser.com/questions/1155262/network-interface-available-only-when-running-vm-through-virtualbox-but-not-thr
    • https://unix.stackexchange.com/questions/29999/why-are-my-two-virtual-machines-getting-the-same-ip-address
20. Dnsmasq - network services for small networks. 2018-04-27

    tags: linux, network, network/dhcp, network/dns, network/ip

    [ permalink ]

    • http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html
    • https://wiki.debian.org/HowTo/dnsmasq
    • https://help.ubuntu.com/community/Dnsmasq
    • https://wiki.archlinux.org/index.php/Dnsmasq