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Hi, The default system-auth file for PAM on CentOS has the following auth section: auth required pam_env.so auth sufficient pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 500 quiet auth required pam_deny.so What's the use of the pam_succeed_if line? It will only be reached if the pam_unix doesn't succeed and from

Hi, I'm setting up xen (on centos 5.3) and I'm facing a weird performance issue with iSCSI. I attach the iSCSI targets to dom0 and if I use them from dom0 I obtain good performance with simple dd tests (~100MB/s both reading and writing). I then use the block devices for the domU and if I repeat the same dd test from within the domU the write performace is still good (~100MB/s), but the