You can use your installation CDs to tackle with this problem.
You have to enter into resque mode and copy pam.d files from that mode
For resque mode refer following website
https://listman.redhat.com/docs/manuals/linux/RHL-7.3-Manual/custom-guide/s1-rescuemode-boot.html
OR
easiest way is copy/create pam configure files from other same system and install PAM 0.99.9.0, but prefer by solving this problem using resque mode
After that take a backup of your /etc/pam.d and install pam by disabling selinux option. Make all possible configuration checks <. ./configure --help>
I have install PAM 0.99.9.0 on my system, and I have run these commands on the directory unzip from install package.
shell>configure --enable-static-libpam
shell>make install
A terrible error happened, the message is:
Making all in pam_selinux
make[3]: Entering directory `/root/Linux-PAM-0.99.9.0/modules/pam_selinux'
/bin/sh ../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I../.. -I../../libpam/include -I../../libpamc/include -I../../libpam_misc/include -g -O2 -W -Wall -Wbad-function-cast -Wcast-align -Wcast-qual -Wmissing-declarations -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wstrict-prototypes -Wwrite-strings -Winline -Wshadow -MT pam_selinux.lo -MD -MP -MF deps/pam_selinux.Tpo -c -o pam_selinux.lo pam_selinux.c
gcc -DHAVE_CONFIG_H -I. -I../.. -I../../libpam/include -I../../libpamc/include -I../../libpam_misc/include -g -O2 -W -Wall -Wbad-function-cast -Wcast-align -Wcast-qual -Wmissing-declarations -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wstrict-prototypes -Wwrite-strings -Winline -Wshadow -MT pam_selinux.lo -MD -MP -MF deps/pam_selinux.Tpo -c pam_selinux.c -fPIC -DPIC -o .libs/pam_selinux.o
pam_selinux.c: In function `mls_range_allowed':
pam_selinux.c:225: error: `CONTEXT__CONTAINS' undeclared (first use in this function)
pam_selinux.c:225: error: (Each undeclared identifier is reported only once
pam_selinux.c:225: error: for each function it appears in.)
pam_selinux.c:232: error: `SECCLASS_CONTEXT' undeclared (first use in this function)
pam_selinux.c: In function `pam_sm_open_session':
pam_selinux.c:497: warning: implicit declaration of function `getseuserbyname'
pam_selinux.c:498: warning: implicit declaration of function `get_ordered_context_list_with_level'
make[3]: *** [pam_selinux.lo] Error 1
make[3]: Leaving directory `/root/Linux-PAM-0.99.9.0/modules/pam_selinux'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/root/Linux-PAM-0.99.9.0/modules'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/Linux-PAM-0.99.9.0'
make: *** [all] Error 2
I found that some files /lib64/security is updated. And no file in /etc/pam.d and /etc
Now I cannot login my system on the monitor or SSH client.
Only by what I can access the system is the SSH windows which is opened before I install the PAM 0.99.9.0
I thought the PAM is wrong.
Why this happened? And How can I undo it.
Thank you very much!
Chu Qiu
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Rakesh P. Zingade
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