ntpsec in chroot

Udo van den Heuvel udovdh at xs4all.nl
Tue Jun 19 13:33:30 UTC 2018


On 19-06-18 14:55, Udo van den Heuvel wrote:
> But what is blocking/inhibiting lookups so that these messages can go away?

In chroot ntpd is using these:

/chroot/ntpd/lib64/libnss_systemd.so.2
/usr/lib64/libnss_files-2.27.so
/usr/lib64/libpcre2-8.so.0.7.0
/usr/lib64/libgpg-error.so.0.24.0
/usr/lib64/libselinux.so.1
/usr/lib64/libuuid.so.1.3.0
/usr/lib64/libblkid.so.1.1.0
/usr/lib64/libgcc_s-8-20180502.so.1
/usr/lib64/libgcrypt.so.20.2.2
/usr/lib64/libmount.so.1.1.0
/usr/lib64/liblz4.so.1.8.1
/usr/lib64/liblzma.so.5.2.4
/usr/lib64/libsystemd.so.0.22.0
/usr/lib64/libavahi-common.so.3.5.3
/usr/lib64/libdbus-1.so.3.19.7
/usr/lib64/libavahi-client.so.3.2.9
/usr/lib64/libdl-2.27.so
/usr/lib64/libz.so.1.2.11
/usr/lib64/libc-2.27.so
/usr/lib64/libdns_sd.so.1.0.0
/usr/lib64/libpthread-2.27.so
/usr/lib64/libcap.so.2.25
/usr/lib64/librt-2.27.so
/usr/lib64/libm-2.27.so
/usr/lib64/libcrypto.so.1.1.0h
/usr/lib64/ld-2.27.so

ldd says:

# ldd /usr/sbin/ntpd
	linux-vdso.so.1 (0x00007ffe462f0000)
	libcrypto.so.1.1 => /lib64/libcrypto.so.1.1 (0x00007f1b60a06000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f1b60672000)
	librt.so.1 => /lib64/librt.so.1 (0x00007f1b6046a000)
	libcap.so.2 => /lib64/libcap.so.2 (0x00007f1b60265000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f1b60046000)
	libdns_sd.so.1 => /lib64/libdns_sd.so.1 (0x00007f1b5fe3d000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f1b5fa7e000)
	libz.so.1 => /lib64/libz.so.1 (0x00007f1b5f867000)
	libdl.so.2 => /lib64/libdl.so.2 (0x00007f1b5f663000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f1b610f3000)
	libavahi-client.so.3 => /lib64/libavahi-client.so.3 (0x00007f1b5f451000)
	libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x00007f1b5f1ff000)
	libavahi-common.so.3 => /lib64/libavahi-common.so.3 (0x00007f1b5eff2000)
	libsystemd.so.0 => /lib64/libsystemd.so.0 (0x00007f1b5ed55000)
	liblzma.so.5 => /lib64/liblzma.so.5 (0x00007f1b5eb2e000)
	liblz4.so.1 => /lib64/liblz4.so.1 (0x00007f1b5e917000)
	libmount.so.1 => /lib64/libmount.so.1 (0x00007f1b5e6bd000)
	libgcrypt.so.20 => /lib64/libgcrypt.so.20 (0x00007f1b5e3a2000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f1b5e18a000)
	libblkid.so.1 => /lib64/libblkid.so.1 (0x00007f1b5df39000)
	libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f1b5dd32000)
	libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f1b5db09000)
	libgpg-error.so.0 => /lib64/libgpg-error.so.0 (0x00007f1b5d8e9000)
	libpcre2-8.so.0 => /lib64/libpcre2-8.so.0 (0x00007f1b5d669000)


After the chroot() ntpd searches for libnss_sss.so.2 in a few palces but 
this library is not on that system.

Kind regards,
Udo


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