MeMaBlue

It depends. Generally there should be processed in place to keep tmp cleaned. What size to make tmp varies from host to host. Some make it intentionally small to prevent certain types of system exploits. Others won’t even make tmp a separately mounted partition.  There is no formal right or wrong answer on how to do it. 

Also remember… tmp is used as a temporary scratch pad. That means if you’re downloading a 10GB file, it might write it into tmp into smaller chunks. Even if tmp is only 500MB… because of that file being moved as needed to the permanent spot it’s fine. 

The bigger issue is how tmp is managed and if there is a process to clean things that are no longer needed in it. 

By the way… this is just my own observations managing Linux systems for 30 years.  It’s not anything related to IPB or the software. 
It’s possible this is just a one off problem. However over time if you continually run into this issue, you should address with the host their strategy around tmp management. 

/tmp/ is a partition. It’s like having a c:/ and d:/  on Windows. If either the main system partition or the tmp partitions are out of space, you’ll have the same problem. That’s something you’ll have to address with your hosting provider as it’s not software related. 

Sounds like there’s no free space left on your server. 

You must have the old path hard coded in a constants.php file.
On that page you made a screenshot of, the next thing down is a text input for the proper location of the datastore folder. Correct it and click save. It'll give you a new constants.php to upload

Make sure that the datastore directory is writable and verify the paths in the conf_global & constants.php are correct 

My traffic is nowhere near what MeMaBlue described and I make a living out of ads alone. 
You need to choose the right ad network. If you're using adsense then you're leaving money on the table. 
Is your traffic mostly from Greece? The ad networks I'm familiar with favor U.S. traffic mostly. 

You would have a member group (say “members”) that receive the experience that contains ads. You also have another group for your subscribers (say “VIP Members” or just “Subscribers”). Using the subscription rules, if someone purchases a subscription they’re moved into that new subscribers group automatically that does not have the ads included. If the subscription is ended, it can be even configured to automatically move the person back to their original group. 

Take a look at the following guide for more details:
This is doable, but not done automatically within the software. You could certainly add the HTML code to do it within your theme relatively easily. 
 
In addition to subscriptions (which are recurring), you can also make one time sales such as what you described. 

See the following guide:
 
Based on the traffic you were describing, unless you had a very specialized niche that had valuable ad keywords, ads lately are not enough to live off of alone most likely.  You need huge traffic volumes to really be truly profitable. But it could certainly augment an overall monetization strategy. 

 

I have a free member group (no subscription required). Then a premium member group(s) (subscription required). You create the subscription(s) that move members into the premium member group(s). Under advertisements, disable showing each ad for premium member group(s). That's the easiest way to disable ads for member groups with a subscription. 

I have yet to see a forum that charges for access. But most forums have ads.
Can you give an example of a forum that gets a significant amount of their income from charging for access?

Yeah subscriptions are extremely popular on all types of communities. Their use ranges from basic support to running an entire business in a community. 
Yes it’s a big focus area for upcoming Commerce update. 

I use subscriptions on two sites to offer premium access. In conjuction with ads. Its mostly ads for free users and no ads for premium users, along with some added features/access.
Subcriptions is good, but there are feature and enhancement opportunities.

Yet another thing causing a big disappointment about IPS is the strange restrictions on the content on this website.


 
Thanks. I hope you will add a way to rebuild old content (including user profiles, signatures, etc.) and change existing images from HTTP to HTTPS where it possible.

What about sites that have years of embedded images already? Some of us have been storing those images on our servers for years now.
wool old/existing image proxy images we already have saved continue to work, or will all of those stored proxy image break on upgrade?

There isnt a way in which to do the opposite at present, without customisation

Hello! 
Is there a way to issue an advertising placement that will
target ONLY  those places  
 

 
and will exclude all others ?     
Right now you can only exclude them.
I would like to sell an exclusive placement to an advertiser/sponsor/ network that will show only there. 
thank you in advance
 

You can test it pretty easily by changing Cloudflare's status to OFF.  In the DNS settings, change the orange cloud to grey.  
However instead of just saying "pretty sure", I would recommend using some sort of performance monitoring solution for a period of time with Cloudflare on and off to get actual supporting data.  Guessing based on "feel" is a bad judge of efficacy.

I personally was able to use the "Auto Minify" JS, CSS, and HTML without issue.  This is somewhat dependent on your theme though if it will work without problems, so if you attempt to use it:
Enable feature Clear cache Wait a minute Browser around your site a minute Repeat prior step to make sure nothing looks unusual In addition to Auto-Minify, I personally also enabled Brotli and Early Hints.  Brotli is a compression algorithm that is designed to make objects smaller before they're transferred from the server over the internet.  Early Hints is not going to be a big game changer in its current state. But the future state of the dynamic early hints will make more of a difference.  It does not hurt in any way to have it enabled.  ANY little benefit that does not have a downside is good.  🙂   

Pick "Respect Existing Headers".  

Put your site in development mode, clear the CF cache, then run the test again. 

Check out the following:
With that said, there is not a concept of having multiple alerts rotated automatically.  Meaning you send one of XX random messages.  You can create a message that is displayed on DAY1, another on DAY2, another on DAY3.  There is nothing that would do exactly what you want.  You would need to have some sort of 3rd party customization to do what you've described.  But alerts might move you in the right direction.  

Hi @MeMaBlue
I made such a "special display" with a Pages database and Pages SuperQuote from @opentype. It's not a popup but a block. I like it better that way.

The new alert system sounds like something what you could use 

Anytime you test as a guest, I would recommend opening up an incognito/private browser session or using a browser on your computer specifically for that. There will always be related data in your browser, whether that is cache, cookies, local storage, etc... that you will want to have cleared to get a real sense of what a guest is seeing. Just my 2 cents 🙂 .