nslookup

shared libraries of dig and nslookup

由 偶尔善良 提交于 2021-02-17 06:05:48
问题 I am using centos 6.4 . While doing dig or nslookup, I got below error dig google.com dig: error while loading shared libraries: libcrypto.so.4: cannot open shared object file: No such file or directory here is my ldd of dig '# ldd /usr/bin/dig linux-vdso.so.1 => (0x00007fff5e674000) liblwres.so.80 => /usr/lib64/liblwres.so.80 (0x00007f73d5c1c000) libdns.so.81 => /usr/lib64/libdns.so.81 (0x00007f73d5883000) libbind9.so.80 => /usr/lib64/libbind9.so.80 (0x00007f73d5676000) libisccfg.so.82 =>

How to use nslookup in bash to verify is DNS is configured properly?

由 陌路散爱 提交于 2021-02-08 06:28:10
问题 Mainly I want to detect if DNS is configured properly on a machine by using nslookup . Sadly it seems that nslookup still returns success error codes when it fails to lookup an entry. Also the fact that different queries could return multiple results makes it harder to test it. So I want to write a bash snippet that returns success if the dns entry resolved successfully. I don't care if I get multiple results. Example nslookup -type=srv _ldap._tcp.DOMAIN.COM 回答1: The correct solution would be

Kubernetes nslookup kubernetes.default fails

由 我是研究僧i 提交于 2021-01-29 04:57:59
问题 My Environment: OS - CentOS-8.2 Kubernetes Vesion: Client Version: v1.18.8 Server Version: v1.18.8 I have successfully configured Kubernetes cluster (One master & one worker), But currently while checking the dns resolution with below code it is failing. apiVersion: v1 kind: Pod metadata: name: dnsutils namespace: default spec: containers: - name: dnsutils image: gcr.io/kubernetes-e2e-test-images/dnsutils:1.3 command: - sleep - "3600" imagePullPolicy: IfNotPresent restartPolicy: Always #

Kubernetes nslookup kubernetes.default fails

由 邮差的信 提交于 2021-01-29 04:55:01
问题 My Environment: OS - CentOS-8.2 Kubernetes Vesion: Client Version: v1.18.8 Server Version: v1.18.8 I have successfully configured Kubernetes cluster (One master & one worker), But currently while checking the dns resolution with below code it is failing. apiVersion: v1 kind: Pod metadata: name: dnsutils namespace: default spec: containers: - name: dnsutils image: gcr.io/kubernetes-e2e-test-images/dnsutils:1.3 command: - sleep - "3600" imagePullPolicy: IfNotPresent restartPolicy: Always #

K8s service not pingable

由 别等时光非礼了梦想. 提交于 2021-01-04 06:42:12
问题 I have a k8s service/deployment in a minikube cluster (name amq in default namespace: D20181472:argo-k8s gms$ kubectl get svc --all-namespaces NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE argo argo-ui ClusterIP 10.97.242.57 <none> 80/TCP 5h19m default amq LoadBalancer 10.102.205.126 <pending> 61616:32514/TCP 4m4s default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 5h23m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 5h23m I spun up infoblox/dnstools, and tried

命令学习_nslookup

由 我只是一个虾纸丫 提交于 2020-03-29 17:28:39
nslookup 域名 这是最常用最简单的用法，可以直接获得目标域名的IP地址和CNAME。 如下是A记录的返回情况 nslookup命令会采用先反向解释获得使用的DNS服务器的名称，上图中ns.guangzhou.gd.cn就是我使用的DNS服务器。后面三行，Name是目标域名的CNAME，Address是目标域名的IP地址，Aliases是目标域名。 nslookup –qt=类型 目标域名 　　注意qt必须小写。 　　类型可以是一下字符，不区分大小写： 　　A 地址记录(Ipv4) 　　AAAA 地址记录（Ipv6） 　　AFSDB Andrew文件系统数据库服务器记录（不懂） 　　ATMA ATM地址记录（不是自动提款机） 　　CNAME 别名记录 　　HINFO 硬件配置记录，包括CPU、操作系统信息 　　ISDN 域名对应的ISDN号码 　　MB 存放指定邮箱的服务器 　　MG 邮件组记录 　　MINFO 邮件组和邮箱的信息记录 　　MR 改名的邮箱记录 　　MX 邮件服务器记录 　　NS 名字服务器记录 　　PTR 反向记录（从IP地址解释域名） 　　RP 负责人记录 　　RT 路由穿透记录（不懂） 　　SRV TCP服务器信息记录（将有大用处） 　　TXT 域名对应的文本信息 　　X25 域名对应的X.25地址记录 看看www.webkaka

nslookup reported “can't resolve '(null)': Name does not resolve” though it successfully resolved the DNS names

由 ℡╲_俬逩灬. 提交于 2020-03-18 03:54:33
问题 I am on ubuntu, and I am running a docker default bridge network. I have containerized versions of zookeeper, kafka, and an app that I wrote that talks to kafka. I do a: docker exec -it <my-app id> /bin/bash Then inside my app's container I run nslookup kafka /go # nslookup schmafka nslookup: can't resolve '(null)': Name does not resolve Name: schmafka Address 1: 172.20.0.8 docker_kafka_1.docker_default I do not understand why I get the output "can't resolve '(null)'" and then I get the

nslookup、arp、netstat、traceroute

由 做~自己de王妃 提交于 2020-03-10 07:22:01
nslookup 　　主要用于测试DNS服务器是否正常工作，除此之外，还可以对域名和IP地址进行查询。 [root@weekend110 ~]# nslookup > www.guet.edu.cn　　　　　　　　输入待查询的域名 www.guet.edu.cn Server: 192.168.80.2 Address: 192.168.80.2#53 以上为所使用的DNS服务器 Non-authoritative answer: Name: www.guet.edu.cn Address: 202.193.64.56 Name: dns.guet.edu.cn Address: 202.103.243.112 Name: mango.guet.edu.cn Address: 202.193.64.33 > 202.193.64.33 　　　　　　输入待查询的IP地址 Server: 192.168.80.2 Address: 192.168.80.2#53 以上为所使用的DNS服务器 Non-authoritative answer: 33.64.193.202.in-addr.arpa name = 33.64.193.202.in-addr.arpa. 33.64.193.202.in-addr.arpa name = mango.gliet.cn. 33.64.193

nslookup、arp、netstat、traceroute

由 Deadly 提交于 2020-03-10 07:18:32
nslookup 　　主要用于测试DNS服务器是否正常工作，除此之外，还可以对域名和IP地址进行查询。 [root@weekend110 ~]# nslookup > www.guet.edu.cn　　　　　　　　输入待查询的域名 www.guet.edu.cn Server: 192.168.80.2 Address: 192.168.80.2#53 以上为所使用的DNS服务器 Non-authoritative answer: Name: www.guet.edu.cn Address: 202.193.64.56 Name: dns.guet.edu.cn Address: 202.103.243.112 Name: mango.guet.edu.cn Address: 202.193.64.33 > 202.193.64.33　　　　　　输入待查询的IP地址 Server: 192.168.80.2 Address: 192.168.80.2#53 以上为所使用的DNS服务器 Non-authoritative answer: 33.64.193.202.in-addr.arpa name = 33.64.193.202.in-addr.arpa. 33.64.193.202.in-addr.arpa name = mango.gliet.cn. 33.64.193.202
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