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Full Discussion: Strange permission issue on Linux server.
Top Forums Shell Programming and Scripting Strange permission issue on Linux server. Post 303003604 by mohtashims on Sunday 17th of September 2017 03:14:35 AM
Old 09-17-2017
RedHat Strange permission issue on Linux server.
Starting
Code:
sendmail

throws this error:

Quote:
Sep 17 06:56:06 techx make[23857]: makemap: error opening type hash map access.db: Executable files not allowed
I decided to see the permission on the files under /etc/mail and this is the output:

Code:
[root@techx mail]# ls -ltr
total 284
-rwxr-xr-x. 1 root root  1847 Jan 27  2014 virtusertable
-rwxr-xr-x. 1 root root   127 Jan 27  2014 trusted-users
-rwxr-xr-x. 1 root root    92 Jan 27  2014 Makefile
-rwxr-xr-x. 1 root root  2700 Jan 27  2014 make
-rwxr-xr-x. 1 root root   997 Jan 27  2014 mailertable
-rwxr-xr-x. 1 root root   233 Jan 27  2014 domaintable
-rwxr-xr-x. 1 root root   724 Sep 12 18:13 access
-rwxr-xr-x. 1 root root 12288 Sep 12 18:13 access.db
-rwxr-xr-x. 1 root root  1041 Jun  9  2014 submit.mc
.....
.....

On my dev server development_techx this works perfectly fine so i decided to compare the permission of the dev which shows

Code:
[root@development_techx mail]# ls -ltr
total 440
-rwxr-xr-x 1 root root  1847 Jan 27  2014 virtusertable
-rwxr-xr-x 1 root root   127 Jan 27  2014 trusted-users
-rwxr-xr-x 1 root root    92 Jan 27  2014 Makefile
-rwxr-xr-x 1 root root  2700 Jan 27  2014 make
-rwxr-xr-x 1 root root   997 Jan 27  2014 mailertable
-rwxr-xr-x 1 root root    64 Jan 27  2014 local-host-names
-rwxr-xr-x 1 root root   724 Sep 12 18:13 access
-rwxr-xr-x 1 root root 12288 Sep 12 18:13 access.db
-rwxr-xr-x 1 root root  1041 Jun  9  2014 submit.mc
-rwxr-xr-x 1 root root 41680 Jun  9  2014 submit.cf
.....
.....

Do you see the difference ?

The problem with techx server is all the files have permission which hows a (.) a (dot) at the end of the permissions when you fire the ls -ltr command which we do not see on development_techx as you can see below.

wrong vs right

-rwxr-xr-x. 1 root root 724 Sep 12 18:13 access vs -rwxr-xr-x 1 root root 724 Sep 12 18:13 access

I had used chmod -R 755 /etc/mail command for changing permission on both the servers.

So why do i see the difference or the (.) in the end and how can i resolve this difference ?
Last edited by mohtashims; 09-17-2017 at 06:08 AM..
 

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LEARN ABOUT DEBIAN

gzexe

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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