After installing Jenkins I did not direceted to http://localhost:8080/ - jenkins

After I completed the installation process of Jenkins, I was not redirected to http://localhost:8080/ and when I entered the url manually in the browser, I received the following error:
This site can’t be reached.

Related

Jenkins 403 Error: No valid crumb was included in the request

I have changed my Jenkin's security policy from "Anyone can do anything" to "Logged in users can do anything".
This logged me out and bought me to the login page. When I enter my credentials I am taken to the /j_acegi_security_check webpage and am told the following:
HTTP ERROR 403 No valid crumb was included in the request
URI: /j_acegi_security_check
STATUS: 403
MESSAGE: No valid crumb was included in the request
SERVLET: Stapler
I have tried accessing the machine through my regular means via the web address and also through SSH i.e. ssh -L 1234:localhost:8080 <username>#<web address>. Both result in the same page.
I installed Jenkins some time ago with apt and was running find until I made the security change. Please help as I am unable to access the pipelines and everything else inside.
I had a similar issue that Jenkins logged me out after I changed security policy, and hit 403 when I tried to login. That is because I change "Security Realm" from "Jenkins’ own user database" to other options. Change that setting back fix the login issue.

HTTP ERROR 404 Jenkins serves only static files on this domain

I am getting "HTTP ERROR 404 Jenkins serves only static files on this domain" when ever i am accessing the Jenkins page. I think i tried to edit the URL of Jenkins page then after i have got this error. I have deleted and install Jenkins again using Brew command. I also have upgraded the Jenkins to 2.236 version, but still no luck. i downloaded this Jenkins form Jenkins page not using Docker. I already had googled it and find nothing. would someone help me out.
https://i.stack.imgur.com/4U6si.png
I faced this issue when I edited the Resource URL field to be "http://localhost:8080/"
It can be accessed by travelling through the below actions
Manage Jenkins >> Configure System >> Resource root URL
And that was when I started encountering the above-mentioned issue. Because this is not allowing me to open the Jenkins on the 8080 port, I opened Jenkins using the below command in another port using the below command:
java -jar jenkins.war --httpPort=8081
This opened Jenkins in another port and I deleted the Resource URL field entry which then allowed me to access Jenkins on the 8080 port.
OS: Ubuntu 20.04
Jenkins Version: 2.375.1
This file located in your JENKINS_HOME:
jenkins.security.ResourceDomainConfiguration.xml
<?xml version='1.1' encoding='UTF-8'?>
<jenkins.security.ResourceDomainConfiguration>
<url></url>
</jenkins.security.ResourceDomainConfiguration>
Remove the value for url and restarted jenkins with
sudo systemctl restart jenkins

HTTP proxy Configuration always returns error 403 on jenkins

After Installing Jenkins on Ubuntu, I get screen where it shows that jenkins is working in offline mode. It gives option to configure proxy, even after entering correct proxy details for server name, port, username and password I get error message "Failed to connect to http://jenkins-ci.org/ (code 403)", when trying to validate proxy. Have entered many other url but each gives same error.
Also, the same url gives result on wget on server(ubuntu) hosting jenkins.
Have also set proxy for JENKINS user on host machine
In proxy, provide only proxy host and port. Leave the username and password empty And go to .jenkins folder and update the URL from https to Http in the hudson.model.UpdateCenter.xml file. Restart and try again with proxy.

Cant Integrate Jira in xwiki

XWIKI 11.3 jetty with hsqldb
windows 10 OS and google chrome browser
here i am working with jira…so i created a account in jira.xwiki.org… and i use that same credentials for Global Administration: JIRA in xwiki… but when i follow the method that described in the following address i get some error like 403 https://extensions.xwiki.org/xwiki/bin/view/Extension/JIRA%20Project%20Management%20Application 2
Jira Tasks
Unknow error.
(jira macro failed: Server returned HTTP response code: 403 for URL: http://jira.xwiki.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?jqlQuery=(project+%3D+'XWIKI'+and+fixVersion+%3D+'6.4-milestone-1'+and+resolution%3D'unresolved')&field=type&field=key&field=status&field=summary&field=assignee&field=link&os_username=anandhaks& see in log file)

Oops! Google Chrome could not connect to localhost:8080 : Jenkins Launch Error

I have installed Jenkins(1.621) on Windows Server 2008 R2-(Enterprise),from command prompt with option java -jar jenkins.war. After installation I tried launch jenkins in google chrome browser. For couple of times I can successfully launch the jenkins, but third time I am getting the error:
Oops! Google Chrome could not connect to localhost:8080 : Jenkins Launch Error
I tried uninstalling and reinstalling the Jenkins, but same result after couple of launch. I am not able to see any logs generated in Jenkins installation directory. (C:\Users\ic003981.jenkins).
How can I solve this issue?
Installing new Google Chrome Version 45.0.2454.99 m has solved the problem of Jenkins launch error.

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