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by epoch1970
Wed Aug 21, 2019 10:23 am
Forum: Networking and servers
Topic: Howto overrule DNS with local host file?
Replies: 3
Views: 40

Re: Howto overrule DNS with local host file?

In /etc/hosts, you can associate the IP address of your choice with a domain of your choice, e.g. 127.0.0.1 www.some.domain The hosts file is read before DNS servers are queried, so this should always work. A more structured approach, working for multiple machines would be to run a DNS service and o...
by epoch1970
Wed Aug 21, 2019 9:06 am
Forum: General discussion
Topic: default 100 meg swap file
Replies: 23
Views: 513

Re: default 100 meg swap file

So basically: 100MB is fine for most Lite users, and 512/768MB would be better for most Desktop users, because Chromium.
Is this correct?
by epoch1970
Wed Aug 21, 2019 8:52 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27153

Re: Raspberry Pi 4 usb boot?

On all my regular computers, I have a separate / & /home, sometimes /swap too, dependent on needs, it makes re installing &/or upgrading a reasonably simple process, unlike the Raspbian way of putting everything in one partition. 8-) I rarely use a /swap directory, and wouldn’t touch a windows exte...
by epoch1970
Wed Aug 21, 2019 8:06 am
Forum: General discussion
Topic: Ideal SD Card Size for Raspberry PI 4
Replies: 11
Views: 214

Re: Ideal SD Card Size for Raspberry PI 4

The price of 16GB is so low it's a pointless economy to buy 8GB. If any... check out the prices of 4GB SDs, more expensive than 8GB by now. Always compute the price per GB. That will tell you where the sweet spot is, and how much of a premium you’d pay for less common larger (or smaller...) capacit...
by epoch1970
Wed Aug 21, 2019 7:18 am
Forum: Networking and servers
Topic: Cannot get openVPN client config to start @ boot
Replies: 2
Views: 51

Re: Cannot get openVPN client config to start @ boot

Did you edit /etc/defaults/openvpn?
by epoch1970
Wed Aug 21, 2019 7:16 am
Forum: Troubleshooting
Topic: Pi zero crashes after cron.hourly
Replies: 8
Views: 110

Re: Pi zero crashes after cron.hourly

What else is in cron.hourly?
You can summon run-parts in test mode, it will list the files it wants to execute.
by epoch1970
Tue Aug 20, 2019 10:20 am
Forum: Beginners
Topic: Pi image, can I skip image of empty partition?
Replies: 4
Views: 122

Re: Pi image, can I skip image of empty partition?

If you take the image of a block device (e.g. /dev/mmc0blk) you also copy the partition table. You can restore straight away to the same SD, since it’s physical size exactly matches. If you take images of partitions (e.g. /dev/mmc0blkp1, ..p2) you copy the partition only. In order to restore you nee...
by epoch1970
Tue Aug 20, 2019 8:45 am
Forum: Français
Topic: Raspberry pi 3b+ ne s'affiche plus, lumière rouge OK, lumière verte éteinte
Replies: 10
Views: 153

Re: Raspberry pi 3b+ ne s'affiche plus, lumière rouge OK, lumière verte éteinte

Permalien vers la discussion (en anglais) relative aux problèmes de démarrage: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=58151 0.5 A n’est évidemment pas la valeur correcte Court circuit, surtension/surintensité sur les ports GPIO sont des causes bien connues de mort subite ou mort len...
by epoch1970
Mon Aug 19, 2019 9:33 pm
Forum: General discussion
Topic: default 100 meg swap file
Replies: 23
Views: 513

Re: default 100 meg swap file

I’ve never touched the swap file on any of my Raspbian installs. I’ve had some machines working for years on the same install, with excellent availability.

What are you running that needs changing the swap file settings?
by epoch1970
Mon Aug 19, 2019 9:21 pm
Forum: Raspbian
Topic: Why in 2017 do we still not have BTRFS in Raspbian?
Replies: 15
Views: 2569

Re: Why in 2017 do we still not have BTRFS in Raspbian?

There is a ZFS-on-Raspbian-64 protest somewhere in the forum, perhaps you could join?
Sarcasm aside. I believe most Raspbian users would be happy with a smaller and simpler system, and don’t care for data integrity.
by epoch1970
Mon Aug 19, 2019 9:02 pm
Forum: Networking and servers
Topic: second wifi in zero w (sometimes)
Replies: 7
Views: 229

Re: second wifi in zero w (sometimes)

I’m afraid the blimp advertises more than it can hold... I don’t know which of the driver, firmware, hardware would require modifications to make virtual AP work reasonably, but it barely works and it’s been like that for ever. I think you can safely buy an extra usb dongle. Last time I checked, bar...
by epoch1970
Mon Aug 19, 2019 5:06 pm
Forum: Français
Topic: Bonjour, raspberry pi 4
Replies: 14
Views: 261

Re: Bonjour, raspberry pi 4

cat /sys/class/thermal/thermal_zone0/temp
Ou
vcgencmd measure_temp

L’un des 2 au moins devrait marcher. Ça devrait donner le même chiffre (facteur 1000?). Si les chiffres sont différents, se fier à vcgencmd.
by epoch1970
Mon Aug 19, 2019 1:42 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 Ethernet Problem
Replies: 11
Views: 318

Re: Raspberry Pi 4 Ethernet Problem

Looks like this is a Cisco device, rebranded by ISPs.
Found a user guide at random on the Internet, found nothing obvious.
(Seems to operate as modem router only, not a bridged modem.)
by epoch1970
Mon Aug 19, 2019 1:16 pm
Forum: Troubleshooting
Topic: [SOLVED] Raspberry Pi 4: access point and VPN router
Replies: 6
Views: 157

Re: Raspberry Pi 4 and access point

Yeah. I guess someone should bite the bullet, clone the doc, revise it and make a PR. The few last commits weren’t all spotless.
Somehow I manage not to find the time or to be away from my Pis when I could...
by epoch1970
Mon Aug 19, 2019 1:09 pm
Forum: Raspbian
Topic: Remote Raspbian installation using too much 3G data
Replies: 4
Views: 95

Re: Remote Raspbian installation using too much 3G data

Run “ps” on your machine and see what’s running...
by epoch1970
Mon Aug 19, 2019 1:07 pm
Forum: Beginners
Topic: Is booting without the SD card possible?
Replies: 6
Views: 243

Re: Is booting without the SD card possible?

With Pi 4 SD is the unique boot medium ATM. Boot over network will be added first, then boot via USB mass storage. No schedule was published but this is ongoing work and high priority. So within some weeks/months I guess you should be able to boot without SD at all. In the meantime you can have a mi...
by epoch1970
Mon Aug 19, 2019 12:04 pm
Forum: Raspbian
Topic: Remote Raspbian installation using too much 3G data
Replies: 4
Views: 95

Re: Remote Raspbian installation using too much 3G data

No secret process.
Processes in the background, probably. Apart ntp (network time), dns (name resolution) and perhaps the odd /etc/cron.d/ task all the data consumed would be related to the services you’ve deployed.
by epoch1970
Mon Aug 19, 2019 11:56 am
Forum: Beginners
Topic: A+ rating for ssllabs help with DHparams
Replies: 5
Views: 128

Re: A+ rating for ssllabs help with DHparams

Generate the key with a more powerful computer or wiggle the mouse on the Pi and/or use a variant of the command. See:
https://security.stackexchange.com/ques ... r-24-hours
by epoch1970
Mon Aug 19, 2019 10:26 am
Forum: General discussion
Topic: SSD randomly disconnecting when moving my 3B
Replies: 2
Views: 73

Re: SSD randomly disconnecting when moving my 3B

If the root filesystem drops the system freezes or crashes. It’s not recoverable.
A plug might be a bit loose.
by epoch1970
Mon Aug 19, 2019 8:48 am
Forum: Troubleshooting
Topic: [SOLVED] Buster after resize of /root and adding a partition cant boot.
Replies: 12
Views: 230

Re: Jessie after resize of /root and adding a partition cant boot.

Yes running Jessie is unwise.
You could remove the init=... and quiet options from bootcmd.txt and try again.
by epoch1970
Mon Aug 19, 2019 8:19 am
Forum: Beginners
Topic: Automatically choose Wi-Fi device.
Replies: 1
Views: 61

Re: Automatically choose Wi-Fi device.

With Raspbian, by default, the first device, i.e. wlan0, assuming wlan0 and wlan1 are present, will be used for Internet access. You can change that by using the “metric” keyword in dhcpcd.conf. interface wlan0 metric 400 Would lower the priority of wlan0, so that wlan1 would be used for Internet ac...
by epoch1970
Sun Aug 18, 2019 10:20 pm
Forum: Troubleshooting
Topic: [SOLVED] Raspberry Pi 4: access point and VPN router
Replies: 6
Views: 157

Re: Raspberry Pi 4 and access point

The official How-to AP documentation currently has some issues. The other document you link is a bad copy paste job of the original. The mor*n who posted that page mixes routed and bridged setups like there’s no tomorrow. Bridge member interfaces (eg wlan0) never have an IP address. Bridge interface...
by epoch1970
Sun Aug 18, 2019 10:02 pm
Forum: Beginners
Topic: Setting up second eth interface
Replies: 6
Views: 248

Re: Setting up second eth interface

You don’t absolutely need bridge-utils, the “ip” command is supposed to have swallowed it. More or less. It is still convenient. I have this to offer: https://wiki.archlinux.org/index.php/Systemd-networkd#Bridge_interface Shows how to create a bridge with systemd (the modern way). Doesn’t show how t...

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