想知道是否有任何方法可以创建一个临时沙盒环境来运行命令?
我的要求是,我正在Unix上托管一个Web服务,并需要执行一个命令行工具来将输出返回给Web服务客户端。由于我将从客户端接收到的值传递给命令行工具,因此我希望在沙盒环境中执行这些命令。
我不确定,但你可以尝试使用"chroot"命令创建新的"root"环境,例如,
如果你有目录结构并且想要“保护”“许可证”文件,
/
/etc
+ license
/bin
+ ls
/lib
+ ...
itily@openzooey:~$ mkdir chroot_example
itily@openzooey:~$ cd chroot_example/
itily@openzooey:~/chroot_example$ mkdir -p usr/lib lib bin etc
itily@openzooey:~/chroot_example$ cd bin/
itily@openzooey:~/chroot_example/bin$ cp /bin/ls .
itily@openzooey:~/chroot_example/bin$ ldd ls
libsec.so.1 => /lib/libsec.so.1
libnvpair.so.1 => /lib/libnvpair.so.1
libcmdutils.so.1 => /lib/libcmdutils.so.1
libcurses.so.1 => /lib/libcurses.so.1
libc.so.1 => /lib/libc.so.1
libavl.so.1 => /lib/libavl.so.1
libidmap.so.1 => /usr/lib/libidmap.so.1
libnsl.so.1 => /lib/libnsl.so.1
libuutil.so.1 => /lib/libuutil.so.1
libmp.so.2 => /lib/libmp.so.2
libmd.so.1 => /lib/libmd.so.1
libm.so.2 => /lib/libm.so.2
itily@openzooey:~/chroot_example/bin$ ldd ls |awk '{print "cp "$3" lib/"}'
cp /lib/libsec.so.1 lib/
cp /lib/libnvpair.so.1 lib/
cp /lib/libcmdutils.so.1 lib/
cp /lib/libcurses.so.1 lib/
cp /lib/libc.so.1 lib/
cp /lib/libavl.so.1 lib/
cp /usr/lib/libidmap.so.1 lib/
cp /lib/libnsl.so.1 lib/
cp /lib/libuutil.so.1 lib/
cp /lib/libmp.so.2 lib/
cp /lib/libmd.so.1 lib/
cp /lib/libm.so.2 lib/
itily@openzooey:~/chroot_example/bin$ cd ..
itily@openzooey:~/chroot_example$ ldd /bin/ls |awk '{print "cp "$3" lib/"}'|bash
itily@openzooey:~/chroot_example$ ls -ltr
total 9
drwxr-xr-x 2 itily staff 2 dic 22 14:37 etc
drwxr-xr-x 2 itily staff 3 dic 22 14:37 bin
drwxr-xr-x 2 itily staff 14 dic 22 14:38 lib
itily@openzooey:~/chroot_example$ cp /usr/lib/libidmap.so.1 usr/lib/
itily@openzooey:~/chroot_example$ cp /usr/lib/ld.so.1 usr/lib/
itily@openzooey:~/chroot_example$ cd lib/
itily@openzooey:~/chroot_example/lib$ ls -l
total 7615
-rwxr-xr-x 1 itily staff 14044 dic 22 14:38 libavl.so.1
-rwxr-xr-x 1 itily staff 1721400 dic 22 14:38 libc.so.1
-rwxr-xr-x 1 itily staff 26748 dic 22 14:38 libcmdutils.so.1
-rwxr-xr-x 1 itily staff 293876 dic 22 14:38 libcurses.so.1
-rwxr-xr-x 1 itily staff 97852 dic 22 14:38 libidmap.so.1
-rwxr-xr-x 1 itily staff 398704 dic 22 14:38 libm.so.2
-rwxr-xr-x 1 itily staff 87164 dic 22 14:38 libmd.so.1
-rwxr-xr-x 1 itily staff 25140 dic 22 14:38 libmp.so.2
-rwxr-xr-x 1 itily staff 648776 dic 22 14:38 libnsl.so.1
-rwxr-xr-x 1 itily staff 74776 dic 22 14:38 libnvpair.so.1
-rwxr-xr-x 1 itily staff 97500 dic 22 14:38 libsec.so.1
-rwxr-xr-x 1 itily staff 49556 dic 22 14:38 libuutil.so.1
itily@openzooey:~/chroot_example/lib$ cd ..
itily@openzooey:~/chroot_example$ ls -l
total 12
drwxr-xr-x 2 itily staff 3 dic 22 14:37 bin
drwxr-xr-x 2 itily staff 5 ene 10 20:43 etc
drwxr-xr-x 2 itily staff 14 ene 10 20:48 lib
drwxr-xr-x 3 itily staff 3 ene 10 20:40 usr
itily@openzooey:~/chroot_example$ echo "this is a test" > etc/license
itily@openzooey:~/chroot_example$ cd etc/
itily@openzooey:~/chroot_example/etc$ cat /etc/group |grep staff > group
itily@openzooey:~/chroot_example/etc$ cat /etc/passwd |grep itily > passwd
itily@openzooey:~$ chroot chroot_example bin/ls /etc
chroot: cannot change root directory to chroot_example: Not owner
itily@openzooey:~$ pfexec chroot chroot_example /bin/ls -l /etc
total 6
-rw-r--r-- 1 101 10 11 Jan 10 19:43 group
-rw-r--r-- 1 101 10 18 Jan 10 19:42 license
-rw-r--r-- 1 101 10 49 Jan 10 19:43 passwd
您没有说明是哪个Unix系统。Solaris zones可以轻松实现此功能。以下是设置的示例: