Why can a port can be accessible from outside although it is not in firewall open ports on centos 7?

I have a remote vps working with centos 7, related firewalld info is as below, firewalld is running actively. [[email protected] mydir]# firewall-cmd –get-zone-of-interface=eth0 no zone [[email protected] doer mydir]# firewall-cmd –list-ports You’re performing an operation over default zone (‘public’), but your connections/interfaces are in zone ‘home’ (see –get-active-zones) You most likely need to use –zone=home option.…

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Nginx proxy sees different client IP for different servers

I have nginx proxy configured for blocking some services for VPN clients only (10.1.0.4 for all users). Example of working case: ### bitwarden server { server_name one.example.com; listen 443 ssl; resolver 127.0.0.11; set $bitwarden bitwarden:80; location / { allow 10.1.0.4; deny all; proxy_pass http://$bitwarden$request_uri; } ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; include /etc/letsencrypt/conf/options-ssl-nginx.conf; ssl_dhparam /etc/letsencrypt/conf/ssl-dhparams.pem; } All…

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Bridged Networking on VirtualBox through nested ESXI virtualization fails

I’m trying to get Bridged Networking to work on Ubuntu in VirtualBox, on a Windows Server 2016 host which is running as guest on an ESXI system (i.e. nested virtualization: ESXI -> Windows Server running Virtualbox -> Ubuntu). My VMware ESXI installation: ESXI 6.5.0 Update 1 (Build 5969303) running on an Intel Xeon “Expose hardware…

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apply_filters() slices away needed arguments

I’m trying to add a button (its function is beyond the scope of this question, suffice it to say that it needs the refund id as an argument) to each refund line in a WooCommerce order. I found that those lines are created in woocommerce\includes\admin\meta-boxes\views\html-order-refund.php which can’t be overridden; however there’s a do_action( ‘woocommerce_admin_order_item_values’, null,…

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