Network

Smokeping on Docker

If you have Docker running somehwere … bring up your Smoke Instance within Seconds ;) Smokeping docker run --name smoke --restart always -d -p 80:80 linuxserver/smokeping Show Containers docker ps docker-test:~# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8f8b872ac1c3 linuxserver/smokeping "/init" 6 minutes ago Up 6 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp smoke Shell into Docker docker exec -it smoke /bin/sh Check Netstat root@8f8b872ac1c3:/# netstat -an Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 0.

Ubuntu 20.04 LTS & Netplan

Assume you got a fresh Machine with DHCP … Ubuntu with DHCP Config cat /etc/netplan/01-netcfg.yaml # This is the network config written by 'subiquity' network: ethernets: ens192: dhcp4: true version: 2 and you’d like to switch to Static IP, ask google how todo it an give try: Static IP with Netplan # This is the network config written by 'subiquity' network: version: 2 ethernets: ens192: addresses: - 1.2.3.4/24 gateway4: 1.1.1.1 nameservers: addresses: - 8.

OpenBGPD Looking Glass

BGP Looking Glass with OpenBSD something I’ve wanted to do for a long time and never got around to it … Just give a try, it’s public available: https://bgp.stoege.net/ Prerequisite OpenBSD VM (at least 2G RAM) Public IPv4 / IPv6 DNS Record / Static IP Full BGP Feed (don’t worry, you can get it for free) httpd config OpenBSD got their own HTTP Daemon in Base System. Let’s enable and configure it.

MAC Converter

MAC Address Converter We’re all dealing with MAC Addresses, some times … there are different formats on different systems. this little script convert it to all formats and you can choise the appropriate ones. Example $ maconvert aa:bb:cc:dd:ee:ff aabbccddeeff aa:bb:cc:dd:ee:ff aa-bb-cc-dd-ee-ff aabb.ccdd.eeff Script Copy/Paste will work on OpenBSD, Linux needs some small Modifications (as there is no doas for example …) doas su - cat << 'EOFSCRIPT' > /usr/local/bin/maconvert #!/usr/bin/env bash # v0.

RPKI for Home Usage

Resource Public Key Infrastructure you may know what RPKI is … It’s a PKI Framework for improving Security for the Internet Routing Infrastructure based on BGP. As a HomeUser or Small/Medium Size Company, you normally don’t have a Full BGP Table and multipe Upstream Providers. You have one Internet Router or Firewall and you get a Default Route from your ISP. With OpenBGPD and the current rpki extensions, you “just” need a Full BGP Feed and then, you can filter all invalid ROA’s and keep your Routing (and Internet Access) more Secure.

Mint Vlan

How to configure a Vlan on Linux Mint ? Wiki Install vlan sudo apt-get install vlan Configuration root@mint:~# sudo modprobe 8021q root@mint:~# ifconfig ens19: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.10.18.83 netmask 255.255.255.0 broadcast 10.10.18.255 inet6 2001:db8:1:2:9506:5fcd:1c61:1279 prefixlen 64 scopeid 0x0<global> inet6 2001:db8:1:2:a9:c50b:1348:1ec6 prefixlen 64 scopeid 0x0<global> inet6 2001:db8:1:2:e064:b0ec:a08f:7fd8 prefixlen 64 scopeid 0x0<global> inet6 2001:db8:1:2:a015:7ec:eef0:1a75 prefixlen 64 scopeid 0x0<global> inet6 2001:db8:1:2:a028:b890:ffe8:5231 prefixlen 64 scopeid 0x0<global> inet6 2001:db8:1:2:c80:addb:1273:95d5 prefixlen 64 scopeid 0x0<global> inet6 fe80::9cc2:b22d:cc15:2946 prefixlen 64 scopeid 0x20<link> ether 4e:e5:10:00:06:83 txqueuelen 1000 (Ethernet) RX packets 181 bytes 58337 (58.

Librenms on Debian 10.3

How to Install LibreNMS on Debian https://docs.librenms.org/Installation/Installation-Ubuntu-1804-Apache/ Packages apt-get install acl apache2 borgbackup curl fping hping3 htop ipcalc jq lftp lynx mlocate mtr nmap pwgen rsync sipcalc tmate tree tshark unzip vim vnstat wget zip curl apache2 composer fping git graphviz imagemagick python-memcache python-mysqldb rrdtool snmp snmpd whois mariadb-client mariadb-server mtr-tiny nmap libapache2-mod-php7.3 apt-get install php7.3-cli php7.3-curl php7.3-gd php7.3-json php7.3-mbstring php7.3-mysql php7.3-snmp php7.3-xml php7.3-zip add User useradd librenms -d /opt/librenms -M -r usermod -a -G librenms www-data get Git cd /opt git clone https://github.