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Full Discussion: Loop breaks through ssh in script
Operating Systems AIX Loop breaks through ssh in script Post 302874895 by omonoiatis9 on Monday 18th of November 2013 01:41:06 AM
Old 11-18-2013
Loop breaks through ssh in script
hello all,

i have an AIX6.1 machine and INFORMIX 11.7 database server.
i have a script to create users on 3 machines and also i need to grant this user access to a specific database. the script works and it does what i want it to do but the loop doesnt work. for example if i insert 10 lines in my input file to create 10 different users it only executes the first line. i suspect that this should have something to do with ssh cause i really cannot find any other explanation.
here is the script:
Code:
while read SEMGROUP SEMBANKDIR COOPUSER DBNAME;
do
 echo " $a Creating user for server machine1 $b "
 if `sudo mkuser pgrp=$SEMGROUP groups="$SEMGROUP" su='false' home=/$SEMBANKDIR/login/$COOPUSER pwdwarntime='3' histexpire='8' maxage='4' minlen='8' minalpha='2' minother='2' maxrepeats='2' gecos=$COOPUSER umask='002' $COOPUSER`
 then
    echo $COOPUSER:$COOPUSER |sudo chpasswd
    cd /$SEMBANKDIR/login/
    sudo chmod -R 771 $COOPUSER
    echo " $a User $COOPUSER created successfully on machine1 $b "
 else
    echo " $a Problem in creating user $COOPUSER on machine1 $b "
 fi

echo "------------------------------------------------------------------"

 echo " $a Creating user for server machine2 $b "
 if `sudo ssh machine2 sudo mkuser pgrp="$SEMGROUP" groups="$SEMGROUP,bank" su='false' login='false' rlogin='false' home=/sem/login/deltausers pwdwarntime='3' histexpire='8' maxage='4' minlen='8' minalpha='2' minother='2' maxrepeats='2' gecos=$COOPUSER umask='002' $COOPUSER`
 then
    sudo ssh machine2 echo $COOPUSER:$COOPUSER |sudo chpasswd
    cd /sem/login/informix/
    $INFORMIXDIR/bin/dbaccess $DBNAME@tcp_semids << q
grant connect to '$COOPUSER';
grant dbpermissions to '$COOPUSER';
grant DEFAULT ROLE dbpermissions to '$COOPUSER';
q
    cd -
    echo " $a User $COOPUSER created successfully on machine2 $b "
 else
    echo " $a Problem in creating user $COOPUSER on machine2 $b "
 fi

echo "---------------------------------------------------------------------"

 echo " $a Creating user for server machine3 $b "
 if `sudo ssh machine3 sudo mkuser pgrp=$SEMGROUP groups="$SEMGROUP" su='false' home=/$SEMBANKDIR/login/$COOPUSER pwdwarntime='3' histexpire='8' maxage='4' minlen='8' minalpha='2' minother='2' maxrepeats='2' gecos=$COOPUSER umask='002' $COOPUSER`
 then
    sudo ssh machine3 echo $COOPUSER:$COOPUSER |sudo chpasswd
    sudo ssh machine3 sudo chmod -R 771 /$SEMBANKDIR/login/$COOPUSER
    echo " $a User $COOPUSER created successfully on machine3 $b "
 else
    echo " $a Problem in creating user $COOPUSER on machine3 $b "
 fi

done

i cannot figure out why the loop is not executed.
any ideas?

thank you
 

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LEARN ABOUT CENTOS

nx_server_selinux

nx_server_selinux(8)				      nx_server SELinux Policy documentation				      nx_server_selinux(8)

NAME

       nx_server_r - nx_server user role - Security Enhanced Linux Policy

DESCRIPTION

       SELinux supports Roles Based Access Control (RBAC), some Linux roles are login roles, while other roles need to be transition into.

       Note: Examples in this man page will use the staff_u SELinux user.

       Non  login  roles  are usually used for administrative tasks. For example, tasks that require root privileges.  Roles control which types a
       user can run processes with. Roles often have default types assigned to them.

       The default type for the nx_server_r role is nx_server_t.

       The newrole program to transition directly to this role.

       newrole -r nx_server_r -t nx_server_t

       sudo is the preferred method to do transition from one role to another.	You setup sudo to transition to nx_server_r by	adding	a  similar
       line to the /etc/sudoers file.

       USERNAME ALL=(ALL) ROLE=nx_server_r TYPE=nx_server_t COMMAND

       sudo will run COMMAND as staff_u:nx_server_r:nx_server_t:LEVEL

       When using a a non login role, you need to setup SELinux so that your SELinux user can reach nx_server_r role.

       Execute the following to see all of the assigned SELinux roles:

       semanage user -l

       You  need  to  add nx_server_r to the staff_u user.  You could setup the staff_u user to be able to use the nx_server_r role with a command
       like:

       $ semanage user -m -R 'staff_r system_r nx_server_r' staff_u

BOOLEANS

       SELinux policy is customizable based on least access required.  nx_server policy is extremely flexible and has several booleans that  allow
       you to manipulate the policy and run nx_server with the tightest access possible.

       If  you	want  to  deny	any  process  from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If you want to allow all domains to have the kernel load modules, you must turn on  the	domain_kernel_load_modules  boolean.  Disabled	by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

MANAGED FILES

       The  SELinux  process  type nx_server_t can manage files labeled with the following file types.	The paths listed are the default paths for
       these file types.  Note the processes UID still need to have DAC permissions.

       nx_server_home_ssh_t

	    /opt/NX/home/nx/.ssh(/.*)?
	    /usr/NX/home/nx/.ssh(/.*)?
	    /var/lib/nxserver/home/.ssh(/.*)?

       nx_server_tmp_t

       nx_server_var_lib_t

	    /opt/NX/home(/.*)?
	    /usr/NX/home(/.*)?
	    /var/lib/nxserver(/.*)?

       nx_server_var_run_t

	    /opt/NX/var(/.*)?

       ssh_home_t

	    /var/lib/[^/]+/.ssh(/.*)?
	    /root/.ssh(/.*)?
	    /var/lib/one/.ssh(/.*)?
	    /var/lib/pgsql/.ssh(/.*)?
	    /var/lib/openshift/[^/]+/.ssh(/.*)?
	    /var/lib/amanda/.ssh(/.*)?
	    /var/lib/stickshift/[^/]+/.ssh(/.*)?
	    /var/lib/gitolite/.ssh(/.*)?
	    /var/lib/nocpulse/.ssh(/.*)?
	    /var/lib/gitolite3/.ssh(/.*)?
	    /var/lib/openshift/gear/[^/]+/.ssh(/.*)?
	    /root/.shosts
	    /home/[^/]*/.ssh(/.*)?
	    /home/[^/]*/.ansible/cp/.*
	    /home/[^/]*/.shosts

COMMANDS

       semanage fcontext can also be used to manipulate default file context mappings.

       semanage permissive can also be used to manipulate whether or not a process type is permissive.

       semanage module can also be used to enable/disable/install/remove policy modules.

       semanage boolean can also be used to manipulate the booleans

       system-config-selinux is a GUI tool available to customize SELinux policy settings.

AUTHOR

       This manual page was auto-generated using sepolicy manpage .

SEE ALSO

       selinux(8),   nx_server(8),   semanage(8),    restorecon(8),    chcon(1),    sepolicy(8)    ,	setsebool(8),	 nx_server_ssh_selinux(8),
       nx_server_ssh_selinux(8)

mgrepl@redhat.com						     nx_server						      nx_server_selinux(8)
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