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Having issues with configuration ?

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  • Looking to revamp your site layout?

    121 Topics
    2k Posts

    @crazycells it is, yes - I think I’ll leave it as there is no specific PWA CSS classes I know of. Well, you could use something like the below, but this means multiple CSS files for different operating systems.

    /** * Determine the mobile operating system. * This function returns one of 'iOS', 'Android', 'Windows Phone', or 'unknown'. * * @returns {String} */ function getMobileOperatingSystem() { var userAgent = navigator.userAgent || navigator.vendor || window.opera; // Windows Phone must come first because its UA also contains "Android" if (/windows phone/i.test(userAgent)) { return "Windows Phone"; } if (/android/i.test(userAgent)) { return "Android"; } if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) { return "iOS"; } return "unknown"; // return “Android” - one should either handle the unknown or fallback to a specific platform, let’s say Android }

    Once you’re in that rabbit hole, it’s impossible to get out of it.

  • Problems with performance ?

    19 Topics
    284 Posts

    Lower grade VPS instances, whilst cheap, do have the inherent issue in the fact that they only have 1Gb of RAM. In most cases, this is enough for relatively small or minor projects, but when you need more RAM that you actually have, you’ll quickly find that instance exhausted, and your applications crashing as a result.

    This is where the swap file comes into play. Adding a swap can significantly improve performance on low budget hosts, but without direct root access, this is not going to be possible. If you own a VPS that has root level access and need to add a swap, follow the below guide.

    First, what exactly is a Swap?

    swap is a section of hard disk space that has been set reserved for the operating system to temporarily store data that it is unable to hold in RAM. This step allows you increase the amount of information that your server can keep in its working memory (but not without with some caveats, which I’ll explain below). The swap space on the hard disk will be used mostly when there is no more sufficient space in RAM to host any in-use application data.

    The information written to disk will be far slower than information kept in RAM (RAM is superior in terms of speed owing to its architecture), but the operating system will prefer to keep running application data in memory and only use the swap for the older data. Essentially, having swap space as a failsafe for when your system’s physical memory is depleted can be a good safety net against crashes on systems with non-SSD storage available.

    Determine the size of the Swap we actually need.

    This process is made so much easier by using the below calculator

    https://pickwicksoft.github.io/swapcalc/

    Admittedly, if you only had 1Gb RAM, the SWAP would be default at 1Gb. You can play with the various configurations here to get the results you need, but be honest - don’t make your system out to be something it isn’t, because otherwise, you’ll create more problems than you set out to resolve.

    Swap space refers to a designated portion of hard drive storage that’s reserved for temporary data storage by the operating system when the RAM can’t accommodate it any longer. This allows for an expansion of the data that your server can hold in its active memory, though with certain conditions. The swap area on the hard drive comes into play primarily when there isn’t enough room left in the RAM to hold active application data.

    The data that gets written to the disk is notably slower than the data stored in RAM. Nevertheless, the operating system prioritizes keeping currently used application data in memory and employs swap for older data. Having swap space as a fallback when your system’s RAM is exhausted can serve as a valuable safeguard against out-of-memory errors, especially on systems with traditional non-SSD storage.

    Verifying the System for Swap Information

    Before proceeding, it’s advisable to confirm whether your system already has existing swap space. While it’s possible to have multiple swap files or swap partitions, typically one should suffice.

    You can check if your system has any configured swap by executing:

    sudo swapon --show

    If you receive no output, it means your system presently lacks swap space.

    You can also confirm the absence of active swap using the free utility:

    free -h

    As evident in the output, there is no active swap on the system, as shown in the Swap row.

    total used free shared buff/cache available Mem: 981Mi 122Mi 647Mi 0.0Ki 211Mi 714Mi SWAP: 0B 0B 0B Assessing Available Space on the Hard Drive Partition

    Before creating a swap file, it’s essential to check the current disk usage to ensure you have enough available space. This can be done by entering

    df -h Filesystem Size Used Avail Use% Mounted on tmpfs 1.6G 876K 1.6G 1% /run /dev/sda1 150G 65G 80G 45% / tmpfs 7.7G 0 7.7G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock /dev/sda15 253M 6.1M 246M 3% /boot/efi tmpfs 1.6G 0 1.6G 0% /run/user/1009

    The device with / in the Mounted on column is our disk in this case. We have sufficient remaining space available - 65G used. Your availability will obviously be different.

    The appropriate size of a swap space can vary according to personal preferences and application requirements. Typically, an amount equivalent to or double the system’s RAM is a good starting point. For a simple RAM fallback, anything over 4G of swap is usually deemed unnecessary.

    Creating a Swap File

    Now that you’ve determined the available hard drive space, you can generate a swap file on your file system. A file of your desired size, named ‘swapfile,’ will be allocated in your root directory (/).

    The recommended method for creating a swap file is by using the fallocate program, which instantly generates a file of the specified size. For instance, if your server has 1G of RAM, you can create a 1G file as follows:

    sudo fallocate -l 1G /swapfile

    You can confirm the correct space allocation by running:

    ls -lh /swapfile

    The file will be created with the appropriate space allocation.

    Activating the Swap File

    Now that you have a correctly sized file, it’s time to turn it into swap space. Initially, you must restrict file access to only root users, enhancing security. To achieve this, execute:

    sudo chmod 600 /swapfile

    You can verify the permission change with:

    ls -lh /swapfile

    As seen in the output, only the root user has read and write permissions.

    Next, mark the file as swap space with:

    sudo mkswap /swapfile

    Afterward, enable the swap file to allow your system to utilize it:

    sudo swapon /swapfile

    You can verify the availability of swap by executing:

    sudo swapon --show

    Finally, recheck the output of the free utility to confirm the setup:

    free -h Making the Swap File Permanent

    The changes made enable the swap file for the current session, but they won’t persist through a system reboot. To ensure your swap settings remain, you can add the swap file information to your /etc/fstab file. Here’s how you can do it:

    Back up the /etc/fstab file as a precaution:

    sudo cp /etc/fstab /etc/fstab.bak

    Add the swap file information to the end of your /etc/fstab file with:

    echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab Adjusting Swap Settings

    There are several settings you can configure to influence your system’s performance with swap. Two key settings are the swappiness property and the cache pressure setting:

    Swappiness Property: This parameter determines how often data is swapped from RAM to the swap space. A value between 0 and 100 represents a percentage. Lower values (close to 0) mean less frequent swapping, while higher values (closer to 100) encourage more swapping. You can check the current swappiness value with:

    cat /proc/sys/vm/swappiness

    You can set a different value using the sysctl command. For example, to set the swappiness to 10:

    sudo sysctl vm.swappiness=10

    This setting persists until the next reboot, but you can make it permanent by adding it to your /etc/sysctl.conf file.

    Cache Pressure Setting: This setting affects how the system caches inode and dentry information over other data. Lower values, like 50, make the system cache this information more conservatively. You can check the current cache pressure value with:

    cat /proc/sys/vm/vfs_cache_pressure

    To set a different value, use the sysctl command and update your /etc/sysctl.conf file as you did with the swappiness setting.

  • Get help with network issues

    4 Topics
    273 Posts

    @phenomlab Found it - https://www.netspotapp.com/wifi-troubleshooting/best-wifi-booster-apps.html 👍

  • mongodb backup problem

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    You might want to also review this post

    https://sudonix.org/topic/389/mongodb-backup-script

  • Getting Eror When Started NodeBB

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    @phenomlab yes i did.

    i deleted one of plugin then it started to work normally.

  • mongodb replica set

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    @veronikya said in mongodb replica set:

    The host’s local dns resolution is not configured. The problem of the host’s hosts being unable to be resolved in docker has been solved. Surprisingly
    Solution:
    Edit the /etc/resovel.conf file
    Add 127.0.0.53

    One immediate issue I can think of here is that editing resolv.conf directly is no longer supported and not recommended (because the changes do not survive a reboot) - unless you install the resolvconf package?

  • Category For User

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    3.5.1 has now been released. I’ve just deployed it, so safe to do so!

  • KeepSolid VPN Unlimited DEAL

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    @JAC said in KeepSolid VPN Unlimited DEAL:

    although all are going to have their own flaws one way or another,

    Exactly that - none of them are going to suit every individual purpose. You have to read the reviews, decide what functionality you need, and then make a judgement call for yourself (and your own unique needs).

    There is no “wrong or right”, although I would steer clear of those that do not have a no-logs policy for privacy reasons alone.

  • Upgrade issues

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    Use this code

    git fetch # Grab the latest code from the NodeBB repository git checkout v3.x git reset --hard origin/v3.x

    And you will have the latest version without specifying it

    https://docs.nodebb.org/configuring/upgrade/

  • 49 Votes
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    @crazycells briefly, yes. I think what concerns be the most with home brew VPN convective like this is a lack of security updates, and potentially leaving yourself open.

    I’ve yet to actually try it, but I know there are a variety of ways to achieve the same goal.

  • Code block hard to read with light theme

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    @Panda I see why - if you check the browser console, there’s an error logged there. This is from one of my VM’s

    image.png

    There is a decision tree that pulls the value of the editor theme from the saved browser settings on each load, but that fails if the theme has never been changed, and the user has the default (in your case, you are using light mode, so it serves “flatly” by default, but the editor itself is never set and returns null

    This below code changes that

    /* If savedTheme is undefined it will return null - based on this, we assume that the user has the default theme selected and never changed it, so we'll need to force that here */ if(!savedTheme) { var savedTheme = "flatly"; }

    If you reload your browser and test again, it should work properly.

  • Fixed background to nodebb forum

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    @Panda said in Fixed background to nodebb forum:

    Chatgpt told me the ::before method.

    Go figure 😛

  • Custom html in nodebb to prevent cache

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    @Panda You’ll need to do that with js. With some quick CSS changes, it looks like this

    d619844f-fbfe-4cf1-a283-6b7364f6bf18-image.png

    The colour choice is still really hard on the eye, but at least you can now read the text

  • www. Infront stops website access?

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    @Panda because there is no match for the DNS entry specified. The receiving web server parses the headers looking for a destination hostname to match, and anything the web server is unable to resolve will be sent back to the root.

  • WP / Woocommerce Mystery

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    @Panda said in WP / Woocommerce Mystery:

    Just back to my other question, have you ever used Shopify?
    It insists on a templating language to use any custom js.

    Not personally as never had any need, however, I do know that it uses Liquid for JS templating. It’s written in Ruby and is used to generate dynamic content on shop fronts. There’s zero reason as to why it wouldn’t work with data supplied by 3rd party API’s, although WordPress code won’t natively work for obvious reasons, and as such, this code would need to be re-written.

    The JS part will likely work with minor modification, but not the PHP file in it’s current form.

  • 2 Votes
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    Thanks for your inputs ♥️

  • 0 Votes
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    @DownPW Yes, exactly.

  • SSL certificates

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    @Panda Go for shared - don’t look at dedicated 😄

  • 2 Votes
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    Ah silly me, thanks for finding that!

  • Removing blue 'moved' tag from post

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    @phenomlab
    Ah, got it working!
    I reversed the CSS addition to put z index high, and then I could see another error box saying fork title must be at least 3 characters.
    So made the new fork title longer and button responded.

  • Composer Zen icon?

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    @DownPW exactly. Not really a new concept, and in all honesty, not something I’ve ever used.

    If you consider the need to add links and references, or citations, you’d need to be able to see other parts of the screen!

  • Where are widgets stored?

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    @phenomlab Thanks, have DMed you

  • Composer options on nodebb

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    @Panda You should be able to expose the CSS for these using F12 to get into console

    3591518c-e3a3-4ada-a43c-6b32a5e0359c-image.png

    a2b8ed46-4157-4ff2-85f0-576543380107-image.png

    That should then expose the element once selected

    89d9c545-a47a-40d1-98f4-80cf3b958e8f-image.png

    Here’s the below CSS you need based on the screenshot provided.

    .composer .formatting-bar .formatting-group li[data-format="picture-o"], .composer .formatting-bar .formatting-group li[data-format="spoiler"] { display: none; }