How to ship BPF with your Go project Lorenz Bauer October 28, 2020 Goal ● Count the number of packets on lo ● Print the count to the console ● From a single Go binary Use the source, Luke github

Zero instrumentation monitoring with your first steps in eBPF Beatriz Martínez, Isovalent - @beatrizmrg October 28, 2020 2 What will we be doing? 3 How are we going to do it? 4 Demo time 5 Tracing

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a new file or edit an existing file Different modes of vim :w to save a file :q! to quit without saving Becoming root user Using sudo command !! trick Setting up hostname Environment variables Setting locate command Finding date/time in different timezones Bash history Sort files by size Curl! For all your web needs Viewing a file Downloading the file Download with the same name Making a POST request using stream of logs Listing of previous boots Time-based log viewing Total size of the journal logs Writing your own service file Securing a service using systemd Installing verybad service Vulnerabilities in

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.10 :q! to quit without saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.11 Becoming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4 Curl! For all your web needs 21 4.1 Viewing a file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 8.17 Writing your own service file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 9

80% or 90% of the time, trying to simplify the usage of the more complex ones. All those commands work on Linux, macOS, WSL, and anywhere you have a UNIX environment. I hope the contents of this book Microsoft and Apple, or Google, will never be able to offer: the freedom to do whatever you want with your computer. They're actually going in the opposite direction, building walled gardens, especially company that can dictate what goes into Linux, or the project priorities. 6 Linux can also be used as your day to day computer. I use macOS because I really enjoy the applications, the design and I also

.................................................................................. 24 Localizing Your Arm-based Computer .............................................................................. .................................................................................... 54 Updating Your System .......................................................................................... For security reasons, we highly recommend that you disable the default user account and create your own user accounts. Connecting through the Serial Console This method is particularly useful

. 26 3.3.5 Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.6 Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.7 Booting . . . . . 6.1.4 Run tools without sudo . . . . . . . . . . . . . . . . . . . . . . . . 53 6.1.5 Network not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 6.1.6 Client.Timeout exceeded while waiting match any file known to git . . . 55 4 欢迎加入 Linux Lab 用户组，联系微信：tinylab，公众号：泰晓科技 6.1.10 Docker not work in Ubuntu 20.04 . . . . . . . . . . . . . . . . . . 56 6.1.11 Error creating aufs mount . . . .

. 26 3.3.5 Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.6 Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.7 Booting . . . . . 6.1.4 Run tools without sudo . . . . . . . . . . . . . . . . . . . . . . . . 53 6.1.5 Network not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 6.1.6 Client.Timeout exceeded while waiting match any file known to git . . . 56 4 欢迎加入 Linux Lab 用户组，联系微信：tinylab，公众号：泰晓科技 6.1.10 Docker not work in Ubuntu 20.04 . . . . . . . . . . . . . . . . . . 56 6.1.11 Error creating aufs mount . . . .

. 26 3.3.5 Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.6 Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.3.7 Booting . . . . . 6.1.4 Run tools without sudo . . . . . . . . . . . . . . . . . . . . . . . . 51 6.1.5 Network not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 6.1.6 Client.Timeout exceeded while waiting . . 53 6.1.9 pathspec FETCH_HEAD did not match any file known to git . . . 54 6.1.10 Docker not work in Ubuntu 20.04 . . . . . . . . . . . . . . . . . . 54 6.1.11 Error creating aufs mount . . . .