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What command would you use to find out which libraries are linked to the /bin/znew executable...

What command would you use to find out which libraries are linked to the /bin/znew executable program?

            When you ran this command what message did you receive on the console?

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Answer #1

INFORMATION ABOUT: "ldd" command

* we can use ldd command to find out which shared libraries are linked to the executables.

* This ldd command invokes dynamic linker to find out library dependencies of an executable program.

> $ ldd /path/to/program

*Note:-This ldd command is NOT recommended to run with any untrusted third-party executable which can leads to security risks it directly invokes the executable to identify its library dependencies.

*we can use a safer way in order to know the dependencies of an unknown executable program use the following command.

$ objdump -p /path/to/program | grep NEEDED

On linux, we can use the following which works better than ldd when the executable uses a non-default loader.

lsof -P -T -p Application_PID.

These are some methods to know the libraries are linked to the executable programs. ;)

I am attaching the screenshots you can refer to them.$ldd /usr/bin/ssh inux-vdso. So.1=> (0x00007 ffff83fe000) libselinux . so. 1-> /lib/x86-64-linux-gnu/libselinux . so. 1 (6x00007f74f3904θ00) libcrypto. so . 1.0.0 => /lib/x86-64-linux-gnu/libcrypto, so. 1.0.0 (6x00007f74f352a000) libdl.so.2/lib/x86_64-linux-gnu/libdl.so.2 (ex00007f74f3325000) libz. so .1 => /lib/x86-64-linux-gnu/libz. so .1 (6x00007174f310c000) libresolv.so.2/lib/x8664-linux-gnu/libresolv.so.2 (ex00007f74f2ef1000) Libgssapi-krb5. so .2 => /usr/lib/x86-64-linux-gnu/libgssapi-krb5. so . 2 (6x88007f74f2caa 00θ ) libc.so.6 >/lib/x86 64-linux-gnu/libc.so.6 (0x00007f74f28e4000) Libpc re . so .3-> /lib/x86-64-linux-gnu/libpcre. so .3 (6x00θ67f74f26a6000) /lib64/ld-linux-x86 . 64 . so . 2 (0x00887 f74f3df1000) libk rb5. so . 3 => /usr/lib/x86-64-linux-gnu/libk rb5 . so.3 (6x00007f74f23da@θθ) libk5crypto. so . 3-> /usr/lib/x86-64-linux-gnu/libk5crypto . so . 3 (6x00007f74f21abeee) libcon-e r r . so . 2 => /lib/x86-64-linux-gnu/libcon_err. so . 2 (0x00007f74f1fa7000) libk rb5support, so.0-> /usr/lib/x86-64-linux-gnu/libk rb5support, so.0 (ΘΧθθ007f74f1d9b 000) Libkeyutils, so. 1-> /lib/x86-64-linux-gnu/libkeyutils. so. 1 (8x00θ67f74f1b97000) libpt h read, so . Θ Ξ> /lib/x86-64-linux-gnu/libpthread, so . θ (0x00007f74f1978000)

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