HHVM not working with nginx - nginx

I try use HHVM with nginx in server CentOS 6.5 64bits but it's not working
hhvm --mode server -vServer.Type=fastcgi -vServer.Port=9000 -user nginx
Quote from HHVM's log:
Failed to initialize central HHBC repository: Failed to open /var/log/hhvm/.hhvm.hhbc: 14 - unable to open database file
Failed to open /var/www/.hhvm.hhbc: 14 - unable to open database file
Does someone know what to do in this situation ?

Two things here :
You're mentionning /var/log/hhvm/.hhvm.hhbc and /var/www/hhvm/.hhvm.hhbc .. is this a typo ? Can you give us the content of your server.hdf and config.hdf files ?
The folder /var/log/hhvm must be writeable by the account being used to run the webserver (ie nginx)
(On a side note, I guess it's --userand not -user)

Related

Debugging "Segmentation fault (core dumped)" for Flask App deployed on Apache with mod-wsgi-py3 (Ubuntu)

I created a Flask app that uses Beautiful Soup and Selenium to scrape and track Amazon product prices. The data was stored using CS50's version of SQLalchemy.
I then created an account to use Oracle's always free VM, with Ubuntu. I followed this excellent guide to the dot https://asdkazmi.medium.com/deploying-flask-app-with-wsgi-and-apache-server-on-ubuntu-20-04-396607e0e40f and set up Apache's conf file and the Wsgi file. I also added the network rules on Oracle's Virtual Cloud Network and to iptables, which I believe works fine.
Following this, the website still couldn't launch. Apache's error log showed a "PermissionError: [Errno 13] Permission denied: '/flask_session'". Based on this post Permission issue when writing file on webserver (flask, apache & wsgi) I changed the OS env to my env os.chdir('/home/ubuntu/flaskapp') and used chown to give rights
sudo chown -R ubuntu:www-data flaskapp
sudo chmod -R g+s flaskapp.
Now, my front page is accessible on http://129.150.38.171/ . However, upon any request to the server, Chrome displays "This page isn’t working 129.150.38.171 didn’t send any data." Apache's log shows a "segmentation fault (core dumped) python flask". Based on the sequence of my code, the error begins when I try to execute SQL, e.g. rows = usersdb.execute("SELECT * FROM users WHERE username = ?", request.form.get("username")).
I do not think that it is not my codes' error as it runs fine locally and the production server also worked when I set it up on Oracle VM using this guide https://docs.oracle.com/en-us/iaas/developer-tutorials/tutorials/flask-on-ubuntu/01oci-ubuntu-flask-summary.htm .
I've found this guide on debugging https://www.bustawin.com/debug-segmentation-faults-in-apache-from-mod_wsgi/ using gdb. But with source /etc/apache2/envvars
sudo -E gdb /usr/sbin/apache, it just tells me "No executable file specified".
Any ideas on what could be the error?

Run nginx.exe on Windows as another user

I'm working on a project for deploying pentest lab with terraform & ansible. All is working good except that last problem.
In my lab I have a nginx server running on a Windows server. Nginx with php works when I start them as Administrator with ansible but i need them to run with a non admin local account.
For the php i've made a wrapper using this tools : https://github.com/antonioCoco/RunasCs
But it doesn't work with nginx cause of a working directory problem :
Here is the error :
PS C:\Users\Administrator> .\RunAsCs.exe nginx ***** C:\Web\nginx-1.19.6\nginx.exe
[*] Warning: GetUserProfileDirectory failed with error code: 2
[*] Warning: Unable to obtain environment for user 'nginx'.
[*] Warning: Environment of created process might be incorrect.
nginx: [alert] could not open error log file: CreateFile() "logs/error.log" failed (3: The system cannot find the path specified)
2021/03/06 10:18:33 [emerg] 5556#6124: CreateFile() "C:\Windows\system32/conf/nginx.conf" failed (3: The system cannot find the path specified)
And that's normal because as you can see my wrapper start in Windows/System32
I would like to know if there is a solution either with nginx.conf or with ansible to start this exe as the "nginx" user.
This is a working code for starting nginx as Administrator
- name: Starting web server
win_shell: .\nginx.exe
args:
chdir: C:\Web\nginx-1.19.6
async: 180
poll: 0
I know that there is a psexec module in ansible but psexec will work only for Local Admin account and the goal of that is that my nginx don't run as Local Admin.
Thanks for the help !

Error: Could not find pg_ctl executable for version 11 (PostgreSQL 11) + let's encrypt [closed]

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I have a VPS hosting with a domain redirecting to it.
I have LAMP stack for my main website using WordPress CMS.
Plus I am using Odoo as my back-end with python and PostgreSQL in a sub-domain.
Everything was working fine until I installed Certbot Let’s Encrypt to obtain an SSL certificate by following these tutorials
For My Wordpress i installed this plugin:
WP Encryption – One Click single / wildcard Free SSL certificate & force HTTPS
Which got me in a loop because it forced the https i will explain it later on
So when the plugin didn't work i searched for another way for the whole VPS with these tutorials:
How To Secure Apache with Let's Encrypt on Ubuntu 16.04
How To Secure Apache with Let's Encrypt on Ubuntu 18.04
After completing the second tutorial for ubuntu 18.04 i noticed that all my domain traffic is going to https and it got stuck in a loop saying same as i said above
"ERR_TOO_MANY_REDIRECTS which means Site redirected too many times"
and couldn't access the website front-end for the wordpress in the doamin.
Then when i applied
"Step 3 — Allowing HTTPS Through the Firewall"
my internet connection got interpreted and when i got back to the ssh session i found my self locked out of the server and did not find any way to get back in.
And when i tired to use the sub-domain that has Odoo on it i have got the same error
"ERR_TOO_MANY_REDIRECTS which means Site redirected too many times"
Until here i was hopeless and did't know what to do.
I contacted my VPS server provider and told him about what exactly happened. Then some how he managed to get me into the server again with a URL to the terminal i still couldn't access the server using ssh clients like putty.. so when i entered the server after he provided me with the URL first thing noticed is that he "rebooted the VPS" will get to this in a second.
So first thing i did was removing the wordpress plugin "WP Encryption" and update the wordpress site-url in wp_options table in mysql database because the plugin changed it from http to https so i changed it back and that solved the ERR_TOO_MANY_REDIRECTS for my wordpress website.
Then the second thing i did was disabling the ufw firewall that i enabled in the tutorial in Step 3 above.
I instantly got my connection to the server back using ssh client putty but what i have noticed again is the postgres service was inactive and went down with the reboot of the VPS. i tried to start the service but it didn't a gave me this error.
Failed to start postgresql.service: Unit postgresql.service is masked.
i searched for a solution and found these commands to unmask
sudo systemctl unmask postgresql
sudo systemctl enable postgresql
sudo systemctl restart postgresql
and then the service has started and everything sames OK when i run the status command
service postgresql status
the response is
● postgresql.service - LSB: PostgreSQL RDBMS server
Loaded: loaded (/etc/init.d/postgresql; generated)
Active: active (exited) since Thu 2020-03-26 05:54:09 UTC; 2h 22min ago
Docs: man:systemd-sysv-generator(8)
Tasks: 0 (limit: 2286)
Memory: 0B
CGroup: /system.slice/postgresql.service
but when i try to connect to postgres through the default port with odoo it says:
could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"
after many searches i made i found the posgres main cluster is also inactive or down i tried to start it with this command
pg_ctlcluster 11 main start
but i get this error
Job for postgresql#11-main.service failed because the service did not take the steps required by its unit configuration. See "systemctl status postgresql#11-main.service" and "journalctl -xe" for details.
and when i run the command as requested
systemctl status postgresql#11-main.service
i get this error
● postgresql#11-main.service - PostgreSQL Cluster 11-main Loaded: loaded (/lib/systemd/system/postgresql#.service; disabled; vendor preset: enabled) Active: failed (Result: protocol) since Thu 2020-03-26 15:22:15 UTC; 14s ago Process: 18930 ExecStart=/usr/bin/pg_ctlcluster --skip-systemctl-redirect 11-main start (code=exited, status=1/FAILURE)
alone with
systemd[1]: Starting PostgreSQL Cluster 11-main...
postgresql#11-main[18930]: Error: Could not find pg_ctl executable for version 11
systemd[1]: postgresql#11-main.service: Can't open PID file /run/postgresql/11-main.pid (yet?) after start: No such file or
systemd[1]: postgresql#11-main.service: Failed with result 'protocol'.
systemd[1]: Failed to start PostgreSQL Cluster 11-main.
I guessed Let's Encrypt added an ssl configuration to the pg_hba.conf and postgres.conf like id did with apache so i searched for them and commented the "ssl on" lines and restarted postgres service along with the main cluster but nothing happened still the the same error which is
Error: Could not find pg_ctl executable for version 11
I know i shouldn't run pg_ctl directly under Ubuntu/Debian. I must use pg_ctlcluster instead, which is installed by postgresql-common. I saw the main page documentation. But when i run "sudo pg_ctlcluster 11 main reload" command i always get the above Error telling me that he could not find pg_ctl executable
I have searched a lot for this problem but nothing worked how can i solve the pg_ctl executable in version 11 ??
Ps:
I am using Ubuntu 19.10 (GNU/Linux 5.3.0-24-generic x86_64)
Odoo 11 with postgres 11 as the database odoo can't connect to postgres as i mentioned before
edit:
Unfortunately i can't do a restore or recover the server to fix postgres package because my last backup of the server was on 19/3 and today is 26/3 i have an important data between this period
Update 27/3/2020 4:06 AM
I compared my last server backup with the production server and found a lot of postgres files missing!! like int this path /usr/lib/postgres/11/ and /etc/postgres/11/ i think postgres some how got damaged and lost some files in the reboot of the server >>> but found the data files of the database located in /var/lib/postgres/11/ <<< Can i read them in my backup server ? i will try and let you know
So finally after a hours of digging
All PostgreSQL files where damaged and missing and i lost hope of repairing them i don't know what caused that but it has a relation with the accidental reboot of the server.
So i managed to find the main cluster data file for my important database information for the production server in this path
/var/lib/postgres/11/
and i took a backup from it by zipping the whole folder using this command
zip -r main.zip main/
then i did a full purge and reinstall for postgres usuing these commands from here
apt-get --purge remove postgresql\*
to remove everything PostgreSQL from your system. Just purging the postgres package isn't enough since it's just an empty meta-package.
Once all PostgreSQL packages have been removed, run:
rm -r /etc/postgresql/
rm -r /etc/postgresql-common/
rm -r /var/lib/postgresql/
userdel -r postgres
groupdel postgres
Then i installed postgres with this command to match odoo11
sudo apt-get install postgresql libpq-dev -y
then creating the ODOO PostgreSQL User
sudo su - postgres -c "createuser -s odoo" 2> /dev/null || true
Now everything is okay odoo should work fine but you still don't have any database
So to bring back the backup from the cluster folder we took earlier we need to move the zip file to the same directory we took it from which is
/var/lib/postgres/11/
but before that you should stop postgres service
sudo systemctl stop postgresql
and make sure it has stopped
sudo systemctl status postgresql
after that rename the main cluster that postgres uses right now because its empty and we don't need it because we are replacing it with our backed up cluster
mv /var/lib/postgres/11/main /var/lib/postgres/11/main_old
then move the zip file from where you backed it up to the postgres cluster folder with this command
mv /backups/main.zip /var/lib/postgres/11/
unzip the folder in the same path by using this command
unzip -a /var/lib/postgres/11/main.zip
after unzipping the folder give the ownership to your postgres user and group
chown -R postgres:postgres main
Then you are good to go. Start Postgres service
sudo systemctl start postgresql
sudo systemctl status postgresql
and make sure you also start the main cluster service
pg_ctlcluster 11 main start
if you stopped odoo make sure to start it also
service odoo-server start
Ps: I solved ERR_TOO_MANY_REDIRECTS for the odoo sub-domain by commenting ssl configurations in my odoo.config Apache2 virtual host that lets encrypt updated before and everything got back to where left it before installing lets encrypt.
I guess i will leave it here and won't use ssl in production again till i figure out how to use it in a test server .. thanks for your time i hope my question and answer helps someone in the future
Try adding 'pg_path' in your odoo configuration file.
Like: pg_path = /path/to/postgresql/binaries
Generally '/usr/lib/posrgresql/11/bin' is the binary directory.

Docker Compose host path error with nginx

I've a error when I run docker-compose up nginx with my host path :
ERROR: for nginx Cannot start service nginx: oci runtime error: container_linux.go:247: starting container process caused "process_linux.go:359: container init caused \"rootfs_linux.go:54: mounting \\"/d/Sites/lfdwveille/app/config/docker/nginx.conf\\" to rootfs \\"/mnt/sda1/var/lib/docker/aufs/mnt/fce42187ef3ff6bcc0d5acf53a77d2218348a432063e2d5fe00b8ac945578f63\\" at \\"/mnt/sda1/var/lib/docker/aufs/mnt/fce42187ef3ff6bcc0d5acf53a77d2218348a432063e2d5fe00b8ac945578f63/etc/nginx/nginx.conf\\" caused \\"not a directory\\"\""
: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type
[31mERROR[0m: Encountered errors while bringing up the project.
The folder url is correct :( I don't know why nginx don't want mount folder and I've no problem with PHP and MySQL.
My setup :
Windows
docker-compose v1.9.0
docker 1.12
Error log :
container_linux.go:247: starting container process caused "process_linux.go:359: container init caused \"rootfs_linux.go:54: mounting \\"/d/Sites/lfdwveille/app/config/docker/nginx.conf\\" to rootfs \\"/mnt/sda1/var/lib/docker/aufs/mnt/fce42187ef3ff6bcc0d5acf53a77d2218348a432063e2d5fe00b8ac945578f63\\" at \\"/mnt/sda1/var/lib/docker/aufs/mnt/fce42187ef3ff6bcc0d5acf53a77d2218348a432063e2d5fe00b8ac945578f63/etc/nginx/nginx.conf\\" caused \\"not a directory\\"\""
Anyone have idea ?
Thank you !
If you are using Docker Machine on Windows, docker has limited access to your Windows filesystem. By default Docker Machine tries to auto-share your C:\Users (Windows) directory.
Docker compose - share volume Nginx

Gitlab stop working after instal iRedMail

I have a little problem.
I have VPS with debian 8. I have installed on it apache2 serwer and gitlab ce with default settings.
My serwer work on port 80 and my gitlab worked on 81 ( external_url ).
Everything stop working when i installed iRedMail.
Now I have uninstalled iRedMail but gitlab doesn't work.
After use command "gitlab-ctl restart" all packages are ok (gitlab-workhouse, logrotate, nginx, postgresql, redis, sidekiq, unicorn), but If i try to open site with gitlab, I have got error the page timeout.
What and how should check to solve this problem?
I have to add that I hace checked listen ports and nginx are in this list.
tcp 0 0 0.0.0.0:81 0.0.0.0:* LISTEN 4534/nginx
---------- EDIT
"stop working" = after I type "external_url" (which worked) I got "Connection timed out".
I have checked logs in /var/log/gitlab for
gitlab-rails, gitlab-shell, gitlab-workhorse, nginx etc.
In gitlab-rails folder I found files : production.log (clear) and sidekiq.log. There are many of ERRORS ( I paste 2 first line, next are similar ):
2015-12-14_14:57:44.37657 2015-12-14T14:57:44.376Z 14796 TID-daijk ERROR: Error fetching message: No such file or directory - connect(2) for /var/opt/gitlab/redis/redis.socket
2015-12-14_14:57:44.37672 2015-12-14T14:57:44.376Z 14796 TID-daijk ERROR: /opt/gitlab/embedded/service/gem/ruby/2.1.0/gems/redis-3.2.1/lib/redis/connection/ruby.rb:180:in `connect_nonblock'
I Have to add that my apache server works fine on :80.

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