このメモは、私(@ymmt2005)が長年にわたってソフトウェアプロダクト開発に関わってきて 2022年現在こうしたほうが良いと考えているベストプラクティスです。
科学的な分析等に基づくわけではない経験則であるため、今後も随時見直すことがありますし、 ここに書いてあることが常に正しいわけでもあらゆるソフトウェア開発に適するわけでもありません。
しかしながら、実務経験が豊富で、モダンな技術スタックに明るいエンジニアの経験則は一定の 役に立つのではないかと考えて記します。
| $ nmcli connection add type wifi ifname wlo1 con-name 0001docomo ssid 0001docomo | |
| Connection '0001docomo' (a6fde1b0-6055-4e6c-a314-05027eb6083a) successfully added. | |
| $ nmcli con edit id 0001docomo | |
| ===| nmcli interactive connection editor |=== | |
| Editing existing '802-11-wireless' connection: '0001docomo' | |
| Type 'help' or '?' for available commands. | |
| Type 'print' to show all the connection properties. |
| ! NEC Portable Internetwork Core Operating System Software | |
| ! IX Series IX3315 (magellan-sec) Software, Version 10.7.18, RELEASE SOFTWARE | |
| ! Compiled Oct 25-Tue-2022 12:28:03 JST #2 | |
| ! Current time Apr 26-Wed-2023 16:52:00 JST | |
| ! | |
| timezone +09 00 | |
| ! | |
| logging buffered 819200 | |
| logging subsystem flt warn | |
| logging subsystem mape debug |
| title | weight | type |
|---|---|---|
ENv2バージョンアップに関する技術的な検討内容 |
10 |
docs |
| #!/usr/bin/env python3 | |
| """ | |
| Analyze a PCAP file containing DHCP Discover messages. | |
| Print stats including number of unique MAC addresses, | |
| number of MAC addresses requesting DHCP option 108 | |
| (IPv6-only Preferred) and MAC adresses flapping between | |
| requesting and not requesting it. | |
| To collect PCAP file, tcpdump can be used like this: |
https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/
Make sure the following options are off:
Disable pre-fetchingLog4J has a feature called Java Naming and Directory Interface (shortened to JNDI in this document), which allows a Java program to reach out to an external source to gather data.
If you put a section of text containing ${jndi:query} into the log, the Log4J library will try to resolve the query.
This can be combined with the Lightweight Directory Access Protocol (LDAP) to connect to a remote server.
However, because JNDI is built for retrieving data, and JNDI is a Java program, if you put a JNDI query using LDAP into a log, it will connect to the given site, download a file, and then execute it.
This is called Remote Code Execution.
Chrome M94 で追加された以下のAPIを使った TS (mpeg2video + aac) の再生実験
mpeg2video のデコードは別途、mpeg2videoをデコードできる decoder_wasm を利用した.