62
votes
Accepted
nginx: [emerg] "stream" directive is not allowed here
stream needs to be on the same level as http block so like
http { foo }
stream { bar }
My guess is your include for /etc/nginx/conf.d/*.conf is located in the http {} block and not outside of it. ...
- 22.3k
48
votes
Accepted
Switch from PHP 7.2 to 7.1 on Ubuntu 16.04, Apache
Below is a description of what I did. I hope this information can help someone else:
I installed PHP 7.1 along side PHP 7.2. I also installed most of the needed extensions for PHP 7.1. I then did ...
- 901
48
votes
Accepted
Best way to run python 3.7 on Ubuntu 16.04 which comes with python 3.5
It would be wise to use pyenv to safely manage multiple versions of Python installed on the same system.
Nonetheless, this should get you up and running with Python 3.7.10 on Ubuntu 16.04
# WARNING: ...
- 870
31
votes
Switch from PHP 7.2 to 7.1 on Ubuntu 16.04, Apache
for display enabled php version in terminal by php -v. we need to set update cli version of php.
use below command to update php cli version
// change terminal (cli) version (7.2 to 7.1)
sudo update-...
- 411
29
votes
Accepted
"Excess arguments." while doing "systemd daemon-reload" during MongoDB configuration
I guess you should use "systemctl daemon-reload" instead of "systemd daemon-reload".
- 406
28
votes
How do view older journalctl logs (after a rotation maybe?)
It could be because you are trying to review the journal since the last boot, which seems likely to be the case inside a docker image.
On Ubuntu 16.04, the journal storage defaults to being in-...
- 3,871
26
votes
Accepted
How to allow a user to use journalctl to see user-specific systemd service logs?
On older systemd versions, you'll have to use journalctl --user --user-unit=SERVICENAME (on newer versions journalctl --user -u SERVICENAME will work fine).
However, this only works if the Storage ...
- 376
23
votes
Accepted
How do view older journalctl logs (after a rotation maybe?)
The reason this happens is because of defaults on the size of journald files stored. There is more detail about this in the docs. It's worth reading the whole section I have linked to, but the ...
- 871
20
votes
systemd script for starting my app server - Unknown lvalue 'StartLimitIntervalSec' in section 'Unit'
You are likely comparing systemd docs you've read online for a different version instead using the docs on your system that match your version.
Check man systemd.unit on your own system. You may ...
- 3,871
19
votes
OpenVPN for certain IPs, eth0 for everything else
The "Use this connection only for resources on its network" checkbox in nm-connection-editor controls whether NetworkManager should add a default route through the VPN. If it is checked, as you did, ...
- 291
18
votes
Accepted
Disabling rp_filter on one interface
Info there: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/Documentation/networking/ip-sysctl.txt?h=v4.9#n1090
Note the last sentence that would explain your attempts:
...
- 10.4k
18
votes
Accepted
switch apache from prefork to event in Ubuntu 16, get php 7 working
ezra-s suggests a good approach but it doesn't include some details that might be confusing for folks who rely on package managers. NOTE: I'm not sure if these steps are exact. If anyone encounters ...
- 516
17
votes
Accepted
command KLogPermitNonKernelFacility is currently not permitted
Is is a known bug.
Bug#1531622
KLogPermitNonKernelFacility - it's legacy parameter which is no longer used.
To remove the error, locate and comment out the following line $...
- 3,295
17
votes
Accepted
varnish daemon not listening on configured port
You need to change the varnish start parameters in the systemd service definition as well. You could edit the line starting with ExecStart in the service defintion file:
sudo vi /lib/systemd/system/...
- 22.5k
15
votes
Accepted
Create daemon on ubuntu 16.04
Adding to @Juanjo Aguilella Marés answer, and once you have copied/linked your script to /etc/systemd/system, you may want to automatically start it when the server starts:
sudo systemctl daemon-...
- 274
15
votes
Accepted
How to enable and use the serial terminal of a HP Microserver Gen9?
The ILO port on the HP server by default asks for an IP via DHCP. So you just need to plug it into a network that has a DHCP server running. It will announce itself with a host name like ILOCZ12345678 ...
- 788
15
votes
Ubuntu cron job every workday
These syntaxes are valid for all working days a 8:00 AM :
0 8 * * 1-5 /path/to/command >/dev/null 2>&1
0 8 * * 1,2,3,4,5 /path/to/command >/dev/null 2>&1 as you said @aleksandar-...
- 341
15
votes
Accepted
What does locking a password using `passwd -l` mean?
Why don't you just read the man page for passwd?
-l, --lock
Lock the password of the named account. This option disables a password by changing it to a value which matches no possible
...
- 98.4k
14
votes
Accepted
I accidentally deleted /var/log/syslog, Now rsyslog Won't Log anything
rsyslog should re-create the file (with correct permissions)after restarting:
# mv /var/log/syslog /tmp/
# /etc/init.d/rsyslog restart
[ ok ] Restarting rsyslog (via systemctl): rsyslog.service.
# ...
- 3,624
14
votes
Switch from PHP 7.2 to 7.1 on Ubuntu 16.04, Apache
@pegues:
Your above mentioned method worked well for apache to switch the different version. By running following commands will change the php from terminal as well. Actually you just need to change ...
- 241
13
votes
Create daemon on ubuntu 16.04
I solved the problem:
a) Create a file crawler.service in /etc/systemd/system with this code:
[Unit]
Description=Crawler cache Service
After=network.target
[Service]
User=root
Restart=always
Type=...
13
votes
How to automatically switch to home directory when switching user?
Try to us su - otheruser command which starts the shell as a login shell with an environment similar to a real login:
it clears all the environment variables except TERM
it initializes the ...
- 5,807
13
votes
Accepted
Postfix - Untrusted TLS connection
Is there an easy way to gain a Trusted TLS connection instead of untrusted, do I need to buy something or this free certificate should work?
This is not about your certificate, so you don't need to ...
- 5,561
12
votes
How Uninstall pip and python
In order to remove it type:
sudo apt-get remove python-pip python-dev
If you're not sure which switch to use, you can add the --help switch to almost if not every Linux command to get details about ...
- 10.6k
12
votes
Accepted
Why does Ubuntu want to reboot so often after installing updates?
Ubuntu will suggest a restart after the update if it can't restart the affected components in a meaningful way.
In a nutshell:
Things like editors or command line tools don't need any kind of ...
- 98.4k
12
votes
Getting Ubuntu 16.04 on a ZFS root on a Hetzner dedicated server
The basic idea is to get Ubuntu installed on a small partition on the harddrive, partition the hard-drive to use the remainder of the space for ZFS, and then copy the installation over. I'm mainly ...
- 289
11
votes
Install of MySQL hangs on Ubuntu 16.04
Same problem, found fix at https://omgdebugging.com/2016/09/04/fixing-hung-up-mysql-installation-on-ubuntu-16-04-lts/. I ran (as root) (sleep 200; killall mysqld)& then immediately apt-get install ...
- 304
11
votes
What does memory_limit = -1 mean in a PHP.ini file?
From the official documantation here:
This sets the maximum amount of memory in bytes that a script is
allowed to allocate. This helps prevent poorly written scripts for
eating up all available ...
- 957
11
votes
Accepted
Why is ALPN not supported by my server?
As @AlexyTen pointed out, the root cause was that, although I had OpenSSL 1.0.2g installed, NGINX needed to be built with OpenSSL and it was built with 1.0.1f which does not support ALPN.
NGINX needs ...
- 401
11
votes
Accepted
Start service after AWS user-data has run
Use
[Unit]
…
After=cloud-final.service
…
[Install]
WantedBy=cloud-init.target
I ran into this as well. journalctl showed user data stuff running after multi-user and before the target cloud-init was ...
- 226
Only top scored, non community-wiki answers of a minimum length are eligible