Cisco NAV10V2-WF 預設帳號密碼

Cisco NAV10V2-WF 

帳號：telecomadmin
密碼：nE7jA%5m

Linux 硬體序號查詢

cat /sys/class/dmi/id/board_serial
dmidecode -s baseboard-serial-number

cat /sys/class/dmi/id/product_uuid
dmidecode -s system-uuid

cat /etc/machine-id

nginx load balance 設定筆記

/etc/nginx/sites-enabled/default

upstream myweb {
    server 192.168.232.1;
    server 192.168.232.2;
}


server {
        listen 80 default_server;
        listen [::]:80 default_server;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }

        location /a {
        proxy_pass http://myweb;
        proxy_set_header   Host    $host;
        proxy_set_header   X-Real-IP   $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;

        }
}

Proxmox ve 6.x LXC 安裝 cuda

查詢 host nvidia 驅動程式版本
nvidia-smi  (460.73.01)

增加 lxc 設定檔設定
lxc.cgroup.devices.allow: c 195:* rwm
lxc.cgroup.devices.allow: c 243:* rwm
lxc.mount.entry: /dev/nvidia0 dev/nvidia0 none bind,optional,create=file
lxc.mount.entry: /dev/nvidiactl dev/nvidiactl none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-uvm dev/nvidia-uvm none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-modeset dev/nvidia-modeset none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-uvm-tools dev/nvidia-uvm-tools none bind,optional,create=file

安裝相關工具
apt install -y sudo gnupg gnupg2 gnupg1
apt-get install -y software-properties-common

根據 host 驅動程式版本安裝 cuda
sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/debian10/x86_64/7fa2af80.pub
sudo add-apt-repository "deb https://developer.download.nvidia.com/compute/cuda/repos/debian10/x86_64/ /"
sudo add-apt-repository contrib
sudo apt-get update
apt-get install -y cuda-drivers=460.73.01-1
sudo apt-get -y install cuda

Proxmox VE 6.x 安裝 NVIDIA驅動程式

關閉 Nouveau

編輯 /etc/modprobe.d/blacklist-nouveau.conf
blacklist nouveau
options nouveau modeset=0

建立 initramfs
sudo update-initramfs -u
sudo reboot

安裝相關開發套件
apt -y install  pve-headers-`uname -r`
apt install make gcc aptitude

下載安裝驅動程式
https://tw.download.nvidia.com/XFree86/Linux-x86_64/418.88/NVIDIA-Linux-x86_64-418.88.run

相關指令
nvidia-smi

Linux 計算 圓周率

 time echo "scale=5000; 4*a(1)" | bc -l -q

ext4 異動 保留空間

查詢
tune2fs -l /dev/sde | egrep "Block size:|Reserved block count"

設定保留 1%
tune2fs -m 1 /dev/sde