https://remyuu.github.io/VIS_Hiroshima
I wrote some documentation for the lab on how newcomers can connect to the school's computer lab server using SSH. It covers Chinese, English, and Japanese, and supports submitting edits.
Category: Essays
The server increases virtual memory.
JavaScriptfree -h df -h / fallocate -l 4G /swapfile chmod 600 /swapfile mkswap /swapfile swapon /swapfile echo '/swapfile none swap sw 0 0' >> /etc/fstab sysctl vm.swappiness=20 echo 'vm.swappiness=20' >> /etc/sysctl.conf free -h swapon --show
Android phone public network surveillance camera streaming
Security issue: Currently, unauthorized streaming is prevented only by using a random Stream Key.
Using an Android phone as a camera, stream the video to remoooo.com via RTMP, and view it via https://remoooo.com/webcam with a password.
Android phones stream to the Public Server via RTMP.
The server connects to MediaMTX and converts it to an HLS listening address on the local machine.
localhost is reverse proxyed to nginx, using HTTPS + Basic Auth, and finally viewed in Browser Viewer.Viewing link: rtmp://example.com:1935/
In simple terms, the server uses MediaMTX as a media gateway. MediaMTX is responsible for receiving RTMP streams from mobile devices and converting them into HLS streams that can be played in a browser.
RTMP App:
BashProtocol: RTMP Server URL: rtmp://example.com:1935 Stream Key: <stream-key> Video Codec: H.264 Audio Codec: AAC Resolution: 1280x720 FPS: 30 Video Bitrate: 2000-3000 kbps Audio Bitrate: 96-128 kbps Keyframe Interval: 2s
Ghostty customization configuration
JavaScript# ========================= # Ghostty aesthetic config # ========================= # ---------- Font ---------- font-family = JetBrainsMono Nerd Font font-family = Maple Mono NF CN font-family = Noto Sans CJK SC font-family = Symbols Nerd Font Mono font-size = 14 font-thicken = true font-thicken-strength = 64 # ---------- Theme ---------- theme = dark:Catppuccin Frappe,light:Catppuccin Latte # ---------- Window ---------- window-padding-x = 12 window-padding-y = 10 window-padding-balance = true window-padding-color = background window-save-state = always # ---------- Transparency / Blur ---------- background-opacity = 0.58 background-blur = macos-glass-regular background-opacity-cells = false # ---------- Cursor ---------- cursor-style = bar cursor-style-blink = false cursor-color = #e78284 cursor-text = #303446 cursor-click-to-move = true mouse-hide-while-typing = true adjust-cursor-thickness = 2 # ---------- Selection ---------- selection-background = #626880 selection-foreground = #c6d0f5 # ---------- macOS titlebar ---------- macos-titlebar-style = sil macos-titlebar-proxy-icon = hidden macos-window-buttons = visible macos-option-as-alt = true # ---------- Shell integration ---------- shell-integration = detect shell-integration-features = cursor,title,sudo,ssh-env,ssh-terminfo # ---------- Notifications ---------- notify-on-command-finish = unfocused # ---------- Quick terminal ---------- keybind = global:ctrl+grave_accent=toggle_quick_terminal quick-terminal-position = top quick-terminal-size = 42% quick-terminal-autohide = true # ---------- Keybinds ---------- keybind = cmd+shift+r=reload_config keybind = cmd+d=new_split:right keybind = cmd+shift+d=new_split:down keybind = cmd+t=new_tab keybind = cmd+w=close_surface keybind = cmd+shift+up=jump_to_prompt:-1 keybind = cmd+shift+down=jump_to_prompt:1 keybind = cmd+shift+b=toggle_background_opacity
Chrome sidebar functionality
go to chrome://flags (in url bar)
search for vertical tabs and set it to enabled
right click on the horizontal tab bar (empty space)
Click “show tabs on the side”
ROG Strix G15 9955HX3D 5070ti graphics card replaced with Honeywell 7958SP liquid metal.
Energy saving: It takes about 40 minutes, and the temperature remains basically unchanged before and after replacement.
I bought a new computer and used it for about a week.
Before replacing the thermal paste, the CPU temperature consistently reached its power limit of 95°C at 125W. Under dual stress testing, the CPU released approximately 50W of power, reaching around 75°C, while the GPU, under X0 FurMark, consumed approximately 100W and reached around 68-70°C.
Begin replacing the Honeywell 7958SP. After removing all the screws, slightly twist the handles on both sides at the top; with a little force, the heatsink module can be removed. Be extra careful of any liquid metal residue remaining on the heatsink module.
After disassembly, a significant amount of liquid metal was clearly observed to have leaked out, but this was likely due to movement during disassembly.
The heat dissipation module has foam pads to prevent liquid metal from overflowing, providing decent protection.
The liquid gold was removed using alcohol and cotton swabs. This process required patience and took about 20 minutes.
Finally, it was cleaned up.
Then replace the thermal paste. Close the lid to finish.
Final roasting temperature compared to before replacementBasically the sameYes, you read that right, they are basically the same.
Furthermore, an additional nearly 4° elevation can be achieved by using a height adjustment pad. So why not?
Prevent 'Zone.Identifier' Files from Appearing in WSL2
When using Windows Subsystem for Linux 2, we access our Linux file system using Windows Explorer. When we copying and pasting files, might notice addition files like '
xxx Zone.Identifier‘'.The '
Zone.Identifier' file is a Windows Attachment Manager feature that stores security information about files. However, since WSL2 uses an ext4 file system, Windows cannot store ADS natively. Instead, it creates a visible 'Zone.Identifier' file in the same directory.1. Delete Existing Files
If you already have '
Zone.Identifier' files in your WSL2 directories, use one of the following methods to remove them.
Bashfind ~/[Your Path] -name "*:Zone.Identifier" -delete2. Disable Windows from Generating '
Zone.Identifier'If you frequently access WSL2 files from Windows and want to permanently stop Windows from attaching '
Zone.Identifier', you can disable this feature via Group Policy or Registry Editor.Press Win + R, type
gpedit.msc, and hit Enter.Configuration → Administrative Templates → Windows Components → Attachment Manager
用户配置 → 管理模板 → Windows 组件 → 附件管理器(In Chinese)EnableDo not preserve zone information in file attachments”
