Top Forums UNIX for Advanced & Expert Users CentOS7 restoring file capabilities Post 303025738 by Peasant on Sunday 11th of November 2018 02:19:53 AM
Old 11-11-2018
Give this a shot, i've tried it in KVM box with success.
Code:
[root@proxygw ~]# uname -a
Linux proxygw 3.10.0-862.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[root@proxygw ~]# cat /etc/redhat-release 
CentOS Linux release 7.5.1804 (Core) 
[root@proxygw ~]# getcap /usr/bin/ping
/usr/bin/ping = cap_net_admin,cap_net_raw+p
[root@proxygw ~]# cat rb.sh
tar --acl --selinux --anchored --xattrs --xattrs-include='security.capability' -cvpzf - /usr/bin/ping | ( cd /tmp && tar -xzvp --acl --selinux --anchored --xattrs --xattrs-include='security.capability' -f - )
[root@proxygw ~]# ./rb.sh
tar: Removing leading `/' from member names
/usr/bin/ping
usr/bin/ping
[root@proxygw ~]# getcap /usr/bin/ping /tmp/usr/bin/ping 
/usr/bin/ping = cap_net_admin,cap_net_raw+p
/tmp/usr/bin/ping = cap_net_admin,cap_net_raw+p

Hope that helps
Regards
Peasant.
These 2 Users Gave Thanks to Peasant For This Post:
 

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GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME
gzexe - compress executable files in place SYNOPSIS
gzexe name ... DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files: -rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb -rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~ /usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are sure that /usr/bin/gdb works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail). BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. GZEXE(1)

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