我的VPC出现问题。我尝试安装ansible脚本。这在其他VPC上是成功的,但是在这个VPC上我得到了以下错误:
ip-xxx.xx-xx-1.compute.internal for ip-xxx doesn't resolve to an ip address owned by this host.
Please set openshift_hostname variable to a hostname that when resolved on the host in question resolves to an IP address matching an interfac
日志
to=<x.y@example.com>, relay=none, delay=21311, delays=21301/0.04/10/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=localdomain type=MX: Host not found
OS: FreeBSD
当我在后缀客户端上运行以下命令时,它会解析。mail.p.example.com托管我们的后缀服务器,然后将电子邮件转发到gmail。
host -t MX p.exam
我希望始终使用https,并拥有一个规范域。问题是,当我与第二个域建立https连接时,一切都会分崩离析,因为证书是针对主域的。有解决这个问题的方法吗?还是我必须购买一个证书--我的所有域,而不仅仅是规范域?
"/etc/apache2/apache2.conf“的相关部分
# Canonical hostname and always use https
<IfModule mod_rewrite.c>
RewriteEngine On
# force https on primary host (works fine)
# http://primary-h
我正在使用为systemd-resolved配置的mDNS。host命令在.local查询上花费很长时间。示例:
$ time host blah.local
;; connection timed out; no servers could be reached
real 0m10.019s
user 0m0.016s
sys 0m0.005s
上面的查询是一个错误的查询(主机blah.local不存在),但其他查询也是如此:
$ time host valid.local
valid.local has address 192.168.0.1
;; connecti
我在我的网络上安装了一个DHCP+DNS,使用bind9和isc-dhcp-server。对于配置了“适当”主机名的所有客户端来说,它都很好,而服务器中的dhcpd.conf中没有任何特殊设置。还有几个主机,我已经安装了固定地址,使用如下所示的块:
option domain-name "dyna.mynet";
host someserver {
hardware ethernet 00:11:22:33:44:55;
fixed-address someserver.mynet; # someserver.mynet has a DNS entry in bi
我试图使用python套接字建立一个通信链接,并发送由另一方(服务器)接收的消息,在这里我总是遇到相同的问题:代码
客户代码:
import socket
s = socket.socket()
host = raw_input("Enter a Hostname : ")
port = input ("Enter a port to communicate on : ")
message = raw_input("What do you want to send (Up , Down , Left , Right) : ")
s.conne
我在两台机器上运行Tomcat。如果出现JSP编译错误,一个Tomcat会向localhost.log记录一条错误消息,而另一个不会。 我假设这是某种配置问题。在哪里可以配置Tomcats编译器的日志? 两台机器上的logging.properties是相同的: # Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional