$ man journalctl
...
--setup-keys
Instead of showing journal contents, generate a new key pair for Forward Secure Sealing (FSS). This will generate a
sealing key and a verification key. The sealing key is stored in the journal data directory and shall remain on the
host. The verification key should be stored externally. Refer to the Seal= option in journald.conf(5) for
information on Forward Secure Sealing and for a link to a refereed scholarly paper detailing the cryptographic
theory it …> strace w 2>&1 | grep urandom
read(4, "/usr/bin/grep\0urandom\0", 2047) = 22
>
为什么“w”需要urandom？如何避免这种情况？
更新：
> strace w 2>&1 | awk '/urandom/'
read(4, "awk\0/urandom/\0", 2047) = 14
>
那么过滤与urandom有关吗？
> strace who 2>&1 | grep urandom
>
那么为什么“谁”没有受到影响呢？
[root@SERVER ~]# netstat -tulpn | grep 44316
tcp 0 0 :::44316 :::* LISTEN -
[root@SERVER ~]# lsof -i | grep 44316
[root@SERVER ~]# rpcinfo
program version netid address service owner
100000 4 tcp6 ::.0.111 portmapper superuser
100000 3 tcp6 ::.0.111 portmapper superuser
100000 4 udp6 ::.0.111 portmapper superuser
100000 3 udp6 ::.0.111 portmapper superuser
100000 4 tcp 0.0.0.0.0.111 portmapper superuser
100000 3 tcp 0.0.0.0.0.111 portmapper superuser
100000 2 tcp 0.0.0.0.0.111 portmapper superuser
100000 4 udp 0.0.0.0.0.111 portmapper superuser
100000 3 …