我们有一个私有的云设置,它不会暴露在互联网上。在启动Apache2时,我们得到以下错误:
Failed authorization procedure. x.y.z.com (http-01): urn:ietf:params:acme:error:dns :: DNS problem: NXDOMAIN looking up A for x.y.z.com - check that a DNS record exists for this domain
重要说明:
服务器报告了以下错误:域: x.y.z.com类型:无详细信息: DNS问题: NXDOMAIN查找A表示x.y.z.com -
我知道,当我们键入一个域名,除非它是缓存在pc或路由器,它要求DNS到外部服务器,以获得IP地址。
显然,来自路由器的DHCP服务器正在为DNS (192.168.1.254)设置自己。发出systemd-resolv --status或resolverctl status
Link 3 (wlp1s0)
Current Scopes: DNS
DefaultRoute setting: yes
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setti
我将此代码添加到sendmail.mc文件中:
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
define(`SMART_HOST',`in.hes.trendmicro.eu')dnl
dnl #
我执行了m4转换以生成sendmail.cf文件,添加了以下代码:
DSin.hes.trendmicro.eu
我在/var/mail/示例中得到以下错误:
<
cat /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
ethernets:
eno1:
dhcp4: true
version: 2
但是我的resolv.conf看起来是这样的:
cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by r
我正在尝试创建一个纯静态链接的二进制文件,以便在最小的Docker容器中运行。在1.5岁之前,我是这样建造的:
go build -a -tags netgo -installsuffix netgo myfile.go
据我所知,在1.5版中,C已经从Go编译器中删除。是否仍然需要使用-tags和-installsuffix进行构建?
我遇到了一个目标邮件收件人的问题,当我试图向abacus@abacusevents.com发送电子邮件时,我从我的电子邮件服务器收到了以下错误消息:
Diagnostic information for administrators:
Generating server: mail.domain.com
abacus@abacusevents.com
mail.abacusevents.com #<mail.abacusevents.com #5.0.0 smtp; 554 "Refused. You have no reverse DNS entry. Contact ab