我在找方法(iptables,规则,等等)以防止版本显示在VSFTPD的nmap报表上。
当前,在执行时: nmap -Pn -p 21 -sV localhost
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000086s latency).
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 3.0.3
Service Info: OS: Unix
我希望版本被隐藏或显示一些无效的值(例如不可用)。
Nmap scan report for localhost
我有一个Linux服务器
# uname -a
Linux site 3.12.39-47-default #1 SMP Thu Mar 26 13:21:16
UTC 2015 (a901594) x86_64 x86_64 x86_64 GNU/Linux
# lsb_release -a
LSB Version: n/a
Distributor ID: SUSE LINUX
Description: SUSE Linux Enterprise Server 12
Release: 12
Codename: 12
我不得不改变网络设置。我在Gnome
我使用的是rails 4和服务器webrick。通过命令行使用rails s启动服务器后,控制台将显示以下内容:
kalinin@kalinin ~/rails/admin_book $ rails s
=> Booting WEBrick
=> Rails 4.2.1 application starting in development on c
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
[2015-09-22 15:43:27] INFO WEBr
通过在控制台上键入以下内容,我可以从linux服务器发送电子邮件,没有任何问题:
邮件-s“测试主题”testemail@gmail.com < /dev/null
我尝试通过Java应用程序发送它,使用javax.mail通过:
public void sendMail() throws MessagingException
{
final Properties p = new Properties();
p.put("mail.smtp.host", "localhost");
final Message msg = n
我正试图在centos服务器上构建离子项目。在centos服务器中构建离子型服务器时,我会得到以下错误。
[root@localhost todo]# ionic build android
Native thread-sleep not available.
This will result in much slower performance, but it will still work.
You should re-install spawn-sync or upgrade to the lastest version of node if possible.
Check /usr/l