我在后台运行了大量进程来尝试获得足够的熵，但我仍然失败。

**We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 210 more bytes)**

我需要一种方法来生成有效的密钥，因为我试图做的事情显然失败了。

iotop中的“TID”是什么意思？

Total DISK READ: 0.00 B/s | Total DISK WRITE: 3.90 M/s
  TID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO>    COMMAND
 2150 be/4 root        0.00 B/s    0.00 B/s  0.00 % 65.25 % [flush-202:0]
 6694 be/4 www-data    0.00 B/s   19.64 K/s  0.00 %  0.00 % php-fpm: pool www
 6700 be/4 www-data    0.00 B/s   23.56 K/s  0.00 %  0.00 % php-fpm: pool www
 8646 be/4 www-data    0.00 B/s  424.12 K/s  0.00 %  0.00 % php-fpm: pool www
10974 be/4 www-data    0.00 …

目前我有一个应用程序在 8080 上运行，由 mod_proxy 前端。

    <Location /hudson>
            Order allow,deny
            Allow from all
            ProxyPass http://localhost:8080/hudson
            ProxyPassReverse http://localhost:8080/hudson
    </Location>

我需要阻止 TCP 8080 但不需要阻止本地主机如何使用 IPtables 来完成？

我无法在 puppet 2.6.4（客户端和主）中使用参数化类

######## from /etc/puppet/manifests/nodes.pp 
# defining one node to use certain version
#######################################################
node 'dev-internal-000008.domain.com' {
         include software($version="dev-2011.02.11")
}

我将这里的版本设置为“默认”

class software($version="dev-2011.02.04b") {
  File {
    links => follow
  }

  file { "/opt/software_AIR":
    ensure => directory
  }

  file { "/opt/software_AIR/share":
    source => "puppet://puppet/software/air/$version",
    recurse => "true",
  }
}

傀儡师的错误

err: Could not parse for environment production: Syntax error at '='; expected ')' at /etc/puppet/manifests/nodes.pp:10 on node dev-internal-domain.com

找到了解决方法

尝试

node 'dev-internal-000008.domain.com' { …

sudo cat idenityfile.rsa >authorized_keys
-bash：authorized_keys：权限被拒绝

如果我 su - 给用户，那么我可以做到这一点，但为什么我不能用我的用户的 sudo 做到这一点？