Linux – Patrick Marc's Networks

2024-05-012024-05-11

LAG Groups

Some collection of LAG configurations and status commands seen over time. LinuxManually ConfigurationStatusFreeBSDConfig ExampleStatusPermanentCheckpoint ConfigStatus - Clish Status - Expert ModeFortigateConfigStatusCisco - CatalystsConfig StatusLinks Linux Manually Configuration modprobe bonding mode=802.3ad ifconfig bond1 192.168.1.1 netmask 255.255.255.0 up ifenslave bond1 eth0 ifenslave bond1 eth1 The Permanent way depends on the distribution. Status cat /proc/net/bonding/bond1 Ethernet Channel Bonding …

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2024-03-09

resize raw image

freebsd# truncate -s +500G disk0.img https://man.freebsd.org/cgi/man.cgi?query=truncate&sektion=1&manpath=freebsd-release-ports [Expert@cpmg:0]# partedGNU Parted 3.1Using /dev/sdaWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) printError: The backup GPT table is not at the end of the disk, as it should be.This might mean that another operating system believes the disk is smaller.Fix, by moving the backup to …

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2024-03-052024-03-06

Source Port selection on Linux results allways in even ports

Some interestion observation over the past weeks, is that i have seen Linux is selecting only even source ports. So lets have a closer look. An exampleDoes this have any effect? How does LACP work?Does this make a difference? Yes certainly it does make a diffrence. What can we do? Where does this come from? …

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2023-10-072024-03-05

Linux – iptables insert rules

Here’s a guide on managing your iptables rules with line numbers, including adding, appending, deleting, and moving rules: [TOC] List rules with Line numbers To view your current iptables rules with line numbers, use the following commands: iptables -t filter -L INPUT --line-numbers -n iptables -t filter -L OUTPUT --line-numbers -n iptables -t filter -L …

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2023-09-282023-10-10

Linux CLI Useful Commands

How to convert letters to lower case in BashUPPERCASE using bashlowercase using bash How to convert letters to lower case in Bash echo "THIS IS MY DATA" | tr '[:upper:]' '[:lower:]' UPPERCASE using bash # y="this Is A test" # echo "${y^^}" THIS IS A TEST lowercase using bash # x="THIS IS a TeSt"# echo "${x,,}"this is …

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Tag: Linux

LAG Groups

resize raw image

Source Port selection on Linux results allways in even ports

Linux – iptables insert rules

Linux CLI Useful Commands

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