I have just installed Apache 2.2.17, and I am using it for the first time.
Now when I try to start the server using the command service httpd start it gives me the message:
httpd: Could not reliably determine the server's fully qualified domain name, using ::1 for ServerName
Now I think I have to set ServerName and the IP address as I search through Google. But I don't know in which file I have to set.
How can I fix this problem?
sudo vim /etc/apache2/httpd.conf
Insert the following line at the httpd.conf: ServerName localhost
Just restart the Apache: sudo /etc/init.d/apache2 restart
Yes, you should set ServerName:
http://wiki.apache.org/httpd/CouldNotDetermineServerName
http://httpd.apache.org/docs/current/mod/core.html#servername
You can find information on the layouts used by the various httpd distributions here:
http://wiki.apache.org/httpd/DistrosDefaultLayout
In your case the file to edit is /etc/httpd/conf/httpd.conf
I was NOT getting the ServerName wrong. Inside your VirtualHost configuration that is causing this warning message, it is the generic one near the top of your httpd.conf which is by default commented out.
Change
#ServerName www.example.com:80
to:
ServerName 127.0.0.1:80
Under Debian Squeeze;
Edit Apache2 conf file : vim /etc/apache2/apache2.conf
Insert the following line at the apache2.conf: ServerName localhost
Restart Apache2: apache2ctl restart or /etc/init.d/apache2 restart
Should work fine (it did solve the problem in my case)
tks noodl for the link on the different layouts. :)
sudo nano /etc/apache2/httpd.conf
search for a text ServerName in nano editor <Ctrl + W>
Insert the following line at the httpd.conf: ServerName localhost
Just restart the Apache: sudo /usr/sbin/apachectl restart
Another option is to ensure that the full qualified host name (FQDN) is listed in /etc/hosts.
This worked for me on Ubuntu v11.10 without having to change the default Apache configuration.
" To solve this problem You need set ServerName.
1: $ vim /etc/apache2/conf.d/name
For example set add ServerName localhost or any other name:
2: ServerName localhost
Restart Apache 2
3: $ service apache restart
For this example I use Ubuntu 11.10.1.125"
FQDN means the resolved name over DNS. It should be like "server-name.search-domain".
The warning you get just provides a notice that httpd can not find a FQDN, so it might not work right to handle a name-based virtual host. So make sure the expected FQDN is registered in your DNS server, or manually add the entry in /etc/hosts which is prior to hitting DNS.
If you are using windows there is something different sort of situation
First open c:/apache24/conf/httpd.conf.
The Apache folder is enough not specifically above path
After that you have to configure httpd.conf file.
Just after few lines there is pattern like:
#Listen _____________:80
Listen 80
Here You have to change for the localhost.
You have to enter ipv4 address for that you can open localhost.
Refer this video link and after that just bit more.
Change your environment variables:
In which you have to enter path:
c:apache24/bin
and
same in the SYSTEM variables
If any query feel free to ask.
Two things seemed to do it for me:
Put all aliases for 127.0.0.1 in /etc/hosts in a single line (e.g. 127.0.0.1 localhost mysite.local myothersite.local
Set ServerName in my httpd.conf to 0.0.0.0 (localhost or 127.0.0.1 didn't work for me)
Editing /etc/hosts got rid of long response times and setting the ServerName got rid of OP's warning for me.
who are still couldnt resolve the problem and using mac then follow this
1.goto the root folder /
cd usr/local/etc/apache2/2.4
3.sudo nano httpd.conf
4.change #servername to ServerName 127.0.0.1:8080 press ctrl+o,+return+ctrl x
5.then restart the server apachectl restart
If you are using windows, remove comment on these lines and set them as:
Line 227 : ServerName 127.0.0.1:80
Line 235 : AllowOverride all
Line 236 : Require all granted
Worked for me!
Here's my two cents. Maybe it's useful for future readers.
I ran into this problem when using Apache within a Docker container. When I started a container from an image of the Apache webserver, this message appeared when I started it with docker run -it -p 80:80 my-apache-container.
However, after starting the container in detached mode, using docker run -d -p 80:80 my-apache-container, I was able to connect through the browser.
I am using ubuntu 22.04
I installed the apache2 at the location '/usr/local/apache2'
I just edited the '/usr/local/apache2/conf/httpd.conf' file.
run the following commands
cd /usr/local/apache2/conf
sudo nano httpd.conf
find this comment
#ServerName www.example.com:80, in my case it is at line 197
after that add this
ServerName localhost
don't modify anything else in this file!
Thank you!
Related
I have a React app made using create-react-app. I've been running this app without any issues for a few months now but have recently ran into an issue with starting the app because it says the port is in use. Here is the error message: Something is already running on port 3000. I'm trying to run the app on a Windows 10 machine.
Everything I've tried so far is listed below:
Running netstat -an and checking the output. This shows nothing running on port 3000.
Running netstat -an | findstr "3000". This shows no output.
Running npx kill-port 3000. I still get the port in use error message after running this.
Changing port that the app is running on. It doesn't matter which port I choose, it always says the port is in use.
Checking the Listening Ports list in Resource Monitor shows nothing listening on port 3000
Restarting my PC
The only thing that works is running the app in a Ubuntu 20.04 VM... which seems to indicate there's something listening on port 3000 on my Windows machine. However, I'm not sure what else I can do to troubleshoot this issue. I'm looking for suggestions on what else I could try.
Edit
Here's the contents of my hosts file C:\Windows\System32\drivers\etc\hosts:
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost
# Added by Docker Desktop
192.168.2.115 host.docker.internal
192.168.2.115 gateway.docker.internal
# To allow the same kube context to work on the host and the container:
127.0.0.1 kubernetes.docker.internal
# End of section
You can change it like below and try again, I'm not sure try once:
FYI, C:\Windows\System32\drivers\etc\hosts
Change to,
# localhost name resolution is handled within DNS itself.
127.0.0.1 localhost
::1 localhost
Instead of below this:
127.0.0.1 kubernetes.docker.internal
I resolved the issue by restarting the WinNAT service. I found the solution in the answers here: Error: listen EACCES: permission denied 0.0.0.0:3001
These are the steps:
Start Command Prompt or PowerShell as Administrator
Stop WinNAT with this command: net stop winnat
Start WinNAT again with this command: net start winnat
I run bash script file through python code. The script is located /home/myscript.sh. The script convert html to pdf and print. If I run the python program in development mode it works fine but if I run in WSGI production mode it give me error "File not found" to print. But if I give access 7777 to home directory it works fine. And I need to do this access step every time whenever machine restarted. Also it not good solution.
I search a lot and change apache2.conf file
<Directory /home/>
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
But still there is problem. Please help me. I used Apache 2.4.9 version. Advance thanks
Update
In /etc/apache2/apache2.conf file
"User ${APACHE_RUN_USER}" and "Group ${APACHE_RUN_GROUP}"
And in envvars it sets like
export APACHE_RUN_USER=www-data
export APACHE_RUN_GROUP=www-data
Still problem exist.
If issue is with directory
Example /home
Move the file from /home to /var/www
sudo chown www-data:www-data /var/www/filename
or
sudo chown www-data:www-data /var/www/filename
If the issue with USB port
Example
ttyUSB0
,
ttyACM0
,
ttyACM1
Write script to change the owner
#!/bin/bash
sudo chown www-data:www-data /dev/ttyACM0
Call this script from your code using subprocess.call
But allow the user www-data to run this file as sudo with out password
sudo visudo
and add the below line in the last
www-data ALL = (ALL) NOPASSWD : /var/www/filename
or
www-data ALL = (ALL) NOPASSWD : ALL
I Try access pgAdmin4 via browser instaled in another Notebook with Linux Ubuntu 16.04 in the same network in my house, but not access.
In localhost... Ok
But REMOTELY... DOES NOT ACCESS
You need to add the following config options:
DEFAULT_SERVER = '0.0.0.0'
in config_local.py (in "pgAdmin4" folder).
If you also want to change the default port then also add
DEFAULT_SERVER_PORT = 5050
First change the line in config.py from DEFAULT_SERVER = '127.0.0.1' to DEFAULT_SERVER = '0.0.0.0'
Config.py is located in the same directory as pgAdmin4:
sudo find / -name "*pgAdmin4"
Start pgAdmin4 in the same directory (use tmux or as service to keep in background):
sudo python3 pgAdmin4.py
If you don't know the login, you can delete/move this file and restart pgAdmin.py:
sudo find / -name "*pgadmin4.db"
This should work on both Ubuntu Server and Desktop. You should preferably keep the 127.0.0.1 and use nginx or Apache in front.
Weird enough, in my case I have to manually run the command
$ pgadmin4
and then the dashboard will be presented in the default browser automatically.
It seems you are trying to open pgadmin client at server.
I suggest you to install pgadmin client from where you want to connect this , add server in pgadmin and do connect.
Tested on ubuntu 20.04
apt install pgadmin4-apache2
nano /usr/share/pgadmin4/web/config.py
Change 127.0.0.1 by 0.0.0.0
Don't forget to copy the key in the shell when you launch pgadmin4 in the remote web browser by replacing 127.0.0.1 by pgadmin4 host IP
E.G. : Something like this in your remote web-browser
http://192.168.1.56:43223/?key=5f45c8ee-4593-41d0-9ae1-06d6dd1d8280
PS : If you don't find config.py
apt install mlocate
updatedb
locate pgadmin4 | grep config.py$
All commands are in root don't forget sudo if you are not root
On macOS, I figured out that pgAdmin 4 web interface uses the port 61886.
Try to access it using http://localhost:61886/browser.
If not, run the command netstat -atp tcp | grep -i "listen" and check what ports are listening.
Until recently, I had a bunch of virtual sites set up like so:
<VirtualHost 127.0.0.1:1234>
...
This works fine for testing on my local machine, where I use a Linux desktop. In order to test how MS and explorer displays my pages from my Windows laptop, I changed this to
<VirtualHost *:1234>
...
Which also works fine, calling the site up from http://[mylinuxservername]:1234 on my laptop's IE. However, I want to restrict that wildcard to the local lan. Plugging in any ip, like 192.nnn.nnn.nnn or 192.*.*.* where the wildcard is above results in 403 Forbidden on the windows machine. The local server still works fine on my Linux box:
<VirtualHost 127.0.0.1:1234 192.*.*.*:1234>
...
or
<VirtualHost 127.0.0.1:1234 192.nnn.nnn.nnn:1234> #exact IP of laptop
...
Anyway, I don't like that wildcard in the second config example above. Hints anyone?
The parameter(s) of VirtualHost are the local addresses you listen to, not the remote ones.
In Apache 2.4 and newer, use the Require directive:
Require ip 127.0.0.0/8
Require ip 192.0.0.0/8
If you are using Apache 2.2 or earlier, use the authz_host configuration:
Order Allow,Deny
Allow from 127.0.0.0/8
Allow from 192.168.0.0/16
This may also work on Apache 2.4, but Order and Allow have been deprecated.
Just a note in case some noobs like me come here :)
Apache HTTP Server is configured by placing directives in plain text
configuration files. The main configuration file is usually called
httpd.conf.
Main Configuration Files
For version 2.4
The Allow, Deny, and Order directives, provided by mod_access_compat,
are deprecated and will go away in a future version. You should avoid
using them, and avoid outdated tutorials recommending their use.
Access Control
Require ip 127.0.0.0/8
Require ip 192.0.0.0/8
or (not exactly the same)
Require ip 127.0
Require ip 192.168
Use iptables to restrict access to the machine itself. The first command will allow HTTP traffic from any network in the 192 range (note that I think you need 192.168 to truly be local but I could wrong). The second command simply drops packets from other sources for port 80
iptables -I 1 INPUT -s 192.0.0.0/8 -p tcp --dport 80 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
iptables -I 2 INPUT -p tcp --dport 80 -m state --state NEW -j DROP
Then in your virtual host you can do <VirtualHost *:80>
I'm using Apache2, and when reloading/restarting the server I get this warning:
apache2: Could not reliably determine the server's fully qualified domain name, using (my FQDN) for ServerName
Everything works fine, but I'm trying to figure out what's causing the error. I'm grabbing the source to see if can find it, but since my C's not very good....
Some notes:
If I change the system hostname, Apache uses the new hostname
I have a ServerName set; it's the same as the hostname
I have a static, unique IP - dig (hostname) returns (my ip), dig -x (my ip) returns (hostname)
My hosts file is correct
Versions:
Apache/2.2.9
Linux 2.6.24-23-xen x86_64
Description: Debian GNU/Linux 5.0 (lenny)
Any ideas?
Are you sure you have a ServerName directive with the proper value - outside any <VirtualHost> blocks? (You also need a ServerName inside each <VirtualHost> block, of course)
When Apache gives out that error message, usually it means that it's not finding a ServerName for the server as a whole. If you do have that directive set properly, I can't imagine why Apache would still be complaining...
On Debian, the hostname is set at startup thanks to the script /etc/init.d/hostname.sh which uses the file /etc/hostname. We can use this file to update the computer hostname and its FQDN (fully qualified domain name).
If ServerName in your vhost is my-computer.my-domain.ext make sure to copy the exact name in /etc/hosts
Caution: in the /etc/hosts file, the hostname and FQDN order must be respected.
First the fqdn then the hostname and localhost at the end.
~$ echo "my-computer" > /etc/hostname
~$ echo "127.0.0.1 my-computer.my-domain.ext my-computer localhost" > /etc/hosts
~$ /etc/init.d/hostname.sh
You can check the change with the following lines:
~$ hostname
my-computer
~$ hostname --fqdn
my-computer.my-domain.ext
The old hostname may still be present in the command line prompt. Just logoff then login to make it disappear.
For further information about setting hostname and FQDN on debian (which also prevents the warning) check this: http://movealong.org/hostname.html