Hi folks, I succeeded to create LXC containers Centos 7.5 , the container runs well.
I am with privileged container.
My version of LXC is LXC 1.0.11-2.el7 delivered with Centos7.5 repository.
I have only a problem, in fact i Installed tcpdump on the Container but when I run tcpdump I have this issue tcpdump: Couldn’t find user 'tcpdump" but the user tcpdump exists.
My strace :
444 capset({_LINUX_CAPABILITY_VERSION_3, 444}, {1<<CAP_SETGID|1<<CAP_SETUID, 1<<CAP_SETGID|1<<CAP_SETUID, 0}) = 0
444 socket(AF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
444 connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 EACCES (Permission denied)
444 close(4) = 0
444 socket(AF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
444 connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 EACCES (Permission denied)
444 close(4) = 0
444 open("/etc/passwd", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 open("/lib64/tls/x86_64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/lib64/tls/x86_64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/lib64/tls/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/lib64/tls", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/lib64/x86_64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/lib64/x86_64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/lib64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/lib64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/usr/lib64/tls/x86_64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/usr/lib64/tls/x86_64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/usr/lib64/tls/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/usr/lib64/tls", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/usr/lib64/x86_64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/usr/lib64/x86_64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 open("/usr/lib64/libnss_ldap.so.2", O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
444 stat("/usr/lib64", 0x7ffcc3d09630) = -1 EACCES (Permission denied)
444 write(2, “tcpdump: Couldn’t find user 'tcp”…, 38) = 38
444 exit_group(1) = ?
444 +++ exited with 1 +++
Perhaps a problem of capabilities?
Many Thanks for your help.