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Questions tagged [raspbian]

Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware.

139 questions
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2 answers

How to disable "WARNING: apt does not have a stable CLI interface..."

I'm trying to write a script which will output the number of upgrade-able packages from apt. However it keeps giving me this warning with it also: # sudo apt update | grep packages | cut -d '.' -f 1 WARNING: apt does not have a stable CLI…
CorruptComputer
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2 answers

Postfix/postfix-script warning symlink leaves directory: /etc/postfix/./makedefs.out

I trying to get an email server up and running on a raspberry pi running Raspbian Buster. In my postfix checks I am getting a strange notification about a symlink that I definitely did not create myself. The warning is postfix/postfix-script:…
DanRan
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After enabling HTTPS on my Apache2 server - I get 404 errors on every request

Okay, so I've had no experience with SSL/HTTPS ever before, I've only ever dealt with standard HTTP. Recently I've started work on a site which will need SSL. So of course, I've gone out and researched how to and got started. I've got to the stage…
Michael Longhurst
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2 answers

Cron job vs NodeJS setInterval for optimal performance

I'm building a simple nodejs script that updates a DNS record based on my current IP. The script works fine but I have some concerns regarding how should I run it. The check for my IP must be performed every 5 minutes and I'm facing a…
Meletis
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5
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2 answers

Why do I get this APT warning: Signature by key [...] uses weak digest algorithm (SHA1)?

I'm hosting a private Debian repository for some custom Raspberry Pi code. I originally built the software on Raspbian Jessie (version 8), generated a GPG key which I use to sign the repository, and ran sudo apt-key add ... on all the devices, to…
soapergem
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4
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1 answer

Cygwin Windows < Linux rsync - connection unexpectedly closed

I'm trying to backup my Raspberry Pi 3 (Raspbian) to my desktop computer (Windows 10 Pro). At the moment I can SSH each way, specifying the private key file. To SSH into the RPi from Windows: ssh root@192.168.1.107 -i H:/ssh/BB8.OpenSSH.ppk (root to…
DarkMatterMatt
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1 answer

Is there a way to make apt-get upgrade not show changelogs?

I want to be able to script apt-get upgrade to run seamlessly without prompts, but in my experiments, I can't get it to stop showing prompts, even with -y or --force yes. Lately, when setting up RPis from scratch, this is an example offender that I…
mredig
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3
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1 answer

Error When Setting up SSL on Alternate Port

I have a web server running on a Raspberry Pi. I am running stunnel on port 443, so I have been working to move my web server to port 8443. I use Let's Encrypt (Certbot) for my SSL certificates, and previously they had been working perfectly. I…
FlyingHazard
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3
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1 answer

rasbian - iptables `--to` or `--to-destination` unknown option

I'm trying to run the following commmand on my Raspbian system sudo iptables -t nat -A PREROUTING -i wlan0 -p tcp --dport 2222 -j DNAT --to-destination 192.168.2.241:22 iptables says: iptables v1.8.2 (nf_tables): unknown option…
user3728501
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Why won't TCP adjust the size of the segment?

I am sending an HTTP request with body that it is large enough for request to get segmented into multiple packets of sizes 374B (headers), 1500B and 199B. Since some of our network equipment has a MTU of only 1430B and the packets have IPv4 "Don't…
aljazerzen
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2
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1 answer

Postfix (Imap) with Dovecot: no auth available

I'm using Dovecot to get Imap access to my mail server (on Raspbian). I'm using system users and am able to successfully test logins (doveadm auth test ...). But I'm not able to get auth option via telnet: sudo telnet localhost 25 Trying…
User Rebo
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2
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1 answer

Multi-client architecture AWS EC Nginx rtmp server setup with raspberry pi camera as client for live video streaming

Our Approach Set up ngnix rtmp webserver on AWS EC ubuntu 16.04. Successfully completed single client(RPi Camera) streaming. Now we want to send multiple Pi Cameras live Feed on this server which will be displayed on the Android client app. Problem…
Kush Swarnkar
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1 answer

How to get multiple Ethernet-Ports (NICs) working simultaneously on a linux device

I'm new to routing and networking so I hope some of you can help me to understand the issue and how to fix it. Current Situation: I have a linux server (raspbian/ubuntu). This server has two ethernet ports (each of them has its own MAC and fixed IP…
H123321
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1 answer

Getting squid proxy to authenticate with AD or LDAP

So, I've been running a project lately, which is to mount a Squid proxy on Raspbian (on Raspberry pi via webmin). This project is divided into two parts; The first, which I have already completed, is to configure a Squid that works transparently…
THR4SH3RP0L0
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2
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1 answer

fsck on boot leads to systemd dependency failure and subsequent boot failure

If a fsck takes longer than 90 seconds during boot, the systemd unit times out and the system falls into emergency mode. This is obviously very unfortunate with headless devices without KVM, as the issue cannot not be fixed or atleast diagnosed from…
Zulakis
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