# 1.ubuntu22.10（这里对 ubuntu 进行更新） 清华源用 update 报错（出现 404）

换成中科大的源就好了 (23.04 的源)

deb https://mirrors.ustc.edu.cn/ubuntu/ lunar main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ lunar main restricted universe multiverse

deb https://mirrors.ustc.edu.cn/ubuntu/ lunar-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ lunar-security main restricted universe multiverse

deb https://mirrors.ustc.edu.cn/ubuntu/ lunar-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ lunar-updates main restricted universe multiverse

deb https://mirrors.ustc.edu.cn/ubuntu/ lunar-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ lunar-backports main restricted universe multiverse

## Not recommended
# deb https://mirrors.ustc.edu.cn/ubuntu/ lunar-proposed main restricted universe multiverse
# deb-src https://mirrors.ustc.edu.cn/ubuntu/ lunar-proposed main restricted universe multiverse

# 2.pwn 调试 c 程序缺少 libstdc.so.6

首先安装：

sudo apt install libstdc++6

然后安装下面的，报错了：

sudo apt install lib32stdc++6

换源（23.04）后安装即可成功运行 c++ 程序

另一种方式：

https://blog.csdn.net/xdz233/article/details/127470733