请教如何正确安装3.0.5的rng-tools

[triaqu]

安装运行3.0.5后看status里

Mar 21 04:07:10 tragic systemd[1]: Started Shadowsocks-libev Default Server Service.
Mar 21 04:07:10 tragic ss-server[30834]: 2017-03-21 04:07:10 INFO: using tcp fast open
Mar 21 04:07:10 tragic ss-server[30834]: 2017-03-21 04:07:10 INFO: plugin "obfs-server" enabled
Mar 21 04:07:10 tragic ss-server[30834]: 2017-03-21 04:07:10 INFO: UDP relay enabled
Mar 21 04:07:10 tragic ss-server[30834]: 2017-03-21 04:07:10 INFO: initializing ciphers... aes-128-gcm
Mar 21 04:07:10 tragic ss-server[30834]: 2017-03-21 04:07:10 ERROR: This system doesn't provide enough entropy to quickly generate high-quality random numbers
Mar 21 04:07:10 tragic ss-server[30834]: Installing the rng-utils/rng-tools or haveged packages may help.
Mar 21 04:07:10 tragic ss-server[30834]: On virtualized Linux environments, also consider using virtio-rng.
Mar 21 04:07:10 tragic ss-server[30834]: The service will not start until enough entropy has been collected.

apt-get install rng-tools后提示：
...
Setting up rng-tools (2-unofficial-mt.14-1) ...
Job for rng-tools.service failed. See 'systemctl status rng-tools.service' and 'journalctl -xn' for details.
invoke-rc.d: initscript rng-tools, action "start" failed.
Processing triggers for systemd (215-17+deb8u6) ...
root@tragic:~/ss/3.0.5# systemctl status rng-tools.service
● rng-tools.service - (null)
Loaded: loaded (/etc/init.d/rng-tools)
Active: failed (Result: exit-code) since Tue 2017-03-21 03:52:09 EDT; 19s ago

Mar 21 03:52:09 tragic rng-tools[25851]: Starting Hardware RNG entropy gatherer daemon: (failed).
Mar 21 03:52:09 tragic systemd[1]: rng-tools.service: control process exited, code=exited status=1
Mar 21 03:52:09 tragic systemd[1]: Failed to start (null).
Mar 21 03:52:09 tragic systemd[1]: Unit rng-tools.service entered failed state.

service rng-tools restart
Job for rng-tools.service failed. See 'systemctl status rng-tools.service' and 'journalctl -xn' for details.
root@tragic:~/ss/3.0.5# systemctl status rng-tools.service
● rng-tools.service - (null)
Loaded: loaded (/etc/init.d/rng-tools)
Active: failed (Result: exit-code) since Tue 2017-03-21 03:55:09 EDT; 18s ago
Process: 26477 ExecStart=/etc/init.d/rng-tools start (code=exited, status=1/FAILURE)

Mar 21 03:55:09 tragic rng-tools[26477]: Starting Hardware RNG entropy gatherer daemon: (failed).
Mar 21 03:55:09 tragic systemd[1]: rng-tools.service: control process exited, code=exited status=1
Mar 21 03:55:09 tragic systemd[1]: Failed to start (null).
Mar 21 03:55:09 tragic systemd[1]: Unit rng-tools.service entered failed state.

请问这个rng-tools该如何安装，是要写配置文件还是少装了什么库。

[wongsyrone]

也许这个东西应该降级到Info，看到ERROR都panic了

[triaqu]

google到方法了，
rngd -r /dev/urandom
service rng-tools restart

service rng-tools status
● rng-tools.service - (null)
Loaded: loaded (/etc/init.d/rng-tools)
Active: active (exited) since Tue 2017-03-21 04:44:38 EDT; 19s ago
Process: 6083 ExecStart=/etc/init.d/rng-tools start (code=exited, status=0/SUCCESS)

Mar 21 04:44:38 tragic rng-tools[6083]: Starting Hardware RNG entropy gatherer daemon: /usr/sbin/rngd already running.
Mar 21 04:44:38 tragic systemd[1]: Started (null).

service shadowsocks-libev status
● shadowsocks-libev.service - Shadowsocks-libev Default Server Service
Loaded: loaded (/lib/systemd/system/shadowsocks-libev.service; enabled)
Active: active (running) since Tue 2017-03-21 04:46:03 EDT; 3s ago
Docs: man:shadowsocks-libev(8)
Main PID: 6681 (ss-server)
CGroup: /system.slice/shadowsocks-libev.service
├─6681 /usr/bin/ss-server -c /etc/shadowsocks-libev/config.json -u
└─6682 obfs-server

Mar 21 04:46:03 tragic systemd[1]: Started Shadowsocks-libev Default Server Service.
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: using tcp fast open
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: plugin "obfs-server" enabled
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: UDP relay enabled
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: initializing ciphers... aes-128-gcm
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: tcp server listening at 127.0.0.1:39831
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 INFO: udp server listening at 0.0.0.0:2017
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 [simple-obfs] INFO: obfuscating enabled
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 [simple-obfs] INFO: tcp port reuse enabled
Mar 21 04:46:03 tragic ss-server[6681]: 2017-03-21 04:46:03 [simple-obfs] INFO: listening at 0.0.0.0:2017

[wongsyrone]

rngd -r /dev/urandom 这个用法是错的没边，相当于把/dev/urandom重新导入/dev/random，欺骗内核让他认为有足够的熵源。

如果你用现代内核的话，这个错误不必在意。唯一需要做的就是多等会。

[triaqu]

谢谢，那就不管他。