Questions tagged [ubuntu]
Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.
16,321
questions
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ClamAV detected Kaiji malware on Ubuntu instance
Today clamAV scanned my AWS instances and detect 24 infected files on each.
It looks like false positive due to several reasons:
All these files are created in October 2022 (why were they detected ...
- 151
0
votes
1
answer
16
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dnsmasq on ubuntu 22.04.: listen-address ignored
Currently 2.86-1.1ubuntu0.3 is running on ubuntu 22.04.
I used
listen-address=127.0.0.1
listen-address=[public-ip-1]
listen-address=[public-ip-2]
port=53
But dnsmasq binds on all IPs:
netstat -tulpn |...
- 103
0
votes
0
answers
18
views
Need suggestion for open source tools to simulate I/O delay for files in a directory on ubuntu-20.04 [closed]
Need suggestion for open source tools to simulate I/O delay for files in a directory on ubuntu-20.04. So lets say I create a directory /delay_dir, then any process trying to read/write to files under /...
-1
votes
1
answer
27
views
How to install grub to a CD-RW? [closed]
My very old server only has BIOS, no UEFI, and the boot order routine aborts booting when it encounters a drive larger than 2TB. The boot order is: CDs, HDDs, USBs, network. I cannot change the boot ...
- 31
0
votes
1
answer
33
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website extremely slow after enabling ssl with nginx on react website
This is my nginx sites available folder on a digital ocean Ubuntu v22 VPS:
server{ server_name 139.59.62.131 animeanyway.me;
location / {
proxy_pass http://localhost:3000;
...
1
vote
1
answer
38
views
can't ping or nslookup outside the LAN
Ubuntu 18.04 cannot ping or nslookup outside the LAN.
When I do nslookup www.google.comit hangs for a while and returns ;; connection timed out; no servers could be reachedI cannot ping www.google.com ...
- 293
0
votes
1
answer
26
views
nginx address already in use, no matter what port configured
I am trying to use nginx to host a webpage. Running on a local VM immediately works, but on an external server not.
When typing nginx into the console, the error reads as follows:
nginx: [emerg] bind()...
1
vote
1
answer
265
views
Invalid version when updating certificate with certbot
I have a server with a Let's encrypt certificate installed with certbot. I want to renew it with the following command
sudo certbot renew --force-renewal
but I get an error:
Saving debug log to /var/...
- 11
0
votes
0
answers
21
views
How to fix cURL error 35 when consulting endpoints in production server?
I have a Laravel project consulting various endpoints via get method, and sometimes in random moment return this error:
production.ERROR: GuzzleHttp\Exception\ConnectException: cURL error 35: OpenSSL ...
0
votes
0
answers
39
views
cURL hangs unless using IPv6 with HTTPS
I need to make some cURL requests to a server that doesn't have an ipv6 address, but my machine only seems able to connect when 1) using https, and 2) using ipv6. Other requests hang indefinitely ...
- 1
0
votes
0
answers
28
views
Best way to trigger host to restart a docker container from inside another docker container?
I have a docker container that manages all of the SSL certificates for my services with Letsencrypt. When the certificate for a certain service is renewed, a post-hook script copies the certificate ...
- 9
0
votes
0
answers
22
views
LibreNMS - clicking the "Config" tab on a device shows a server error
I have librenms installed from the master branch on github.
It seems to work mostly, but when I go to a device and try to click the "Config" tab, I get a server error.
After following the ...
- 229
0
votes
0
answers
20
views
Filtering Amazon servers by IP range AND URL
My server is often attacked by bots hosted on Amazon servers.
So I configured iptables to block the largest ip ranges from Amazon.
My problem is that let's encrypt use also Amazon servers to issue new ...
0
votes
0
answers
25
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Setup kerberos with nfsv4 for no_root_squash mounts
I am very new to kerberos and nfs. Kindly help to know if this is feasible. The NFS server is Truenas scale and client is ubuntu 22.04 desktop.
nfs v4 is enabled in Truenas server and exports /export/...
- 13
0
votes
0
answers
23
views
Gmail not receiving emails sent via ubuntu [closed]
I have a ubuntu 20.04 server running on a vps (ovh)
using hestia control panel.
My problem is that If I send a mail to gmail address
it's not received.
All other email services (such as outlook) work ...
0
votes
0
answers
26
views
access.log of Nginx filling up space (Ubuntu 22 Server)
Recently I have deployed my website using node.js server and using Nginx as reverse proxy, also nginx handles SSL, and forwards the https to http server of node.js running at specific port. I am using ...
0
votes
0
answers
39
views
ubuntu 22.04 + openvpn client = network "down"
I googled everything i was able to google, but with no success.
I will simplify my question as much as possible.
Routes before openvpn connection:
Destination Gateway Genmask Flags ...
- 193
2
votes
1
answer
250
views
Allow users to create and write to a log folder
I'm using Exim4 to run PHP scripts when an email is received.
This script should create a file in the /var/log/myapp folder if it doesn't exist, otherwise it should just read the file and add more ...
- 269
0
votes
0
answers
42
views
Ngninx "cannot load certificate BIO_new_file() failed (SSL: error:0200100D:system library:fopen:Permission", help fix this [emerg] error
I am running an Ubuntu 20.04 LEMP server on a Raspberry Pi 4. In my nginx errror logs I am getting the following error:
2023/05/29 11:51:40 [emerg] 3356#3356: cannot load certificate "/etc/...
- 113
0
votes
2
answers
32
views
Nginx strange upstream address after app restart
I have an application running in a container with an exposed port 8082. There is also an nginx configuration, part of which is shown below. In a normal situation, I see upstream: 127.0.0.1:8082 in the ...
- 113
-1
votes
2
answers
76
views
How can I stop my MySQL server from going down?
I have a website based on a MySQL server on an Ubuntu machine. Every several weeks, one of my users complains that the site does not work, and I find out (using service mysql status) that it is ...
0
votes
1
answer
61
views
I have an existing artifactory oss install. I want a new install. But it is not adding the "libs-release" and "libs-snapshot" repositories
All servers are Ubuntu 22.04 and I am using the OSS artifactory apt repo from jfrog.
I have a VM with artifactory installed on it. For various reasons I need to replace that VM with a new one.
I ...
- 229
1
vote
1
answer
36
views
NGINX reverse proxy works on all browsers except Opera GX - what is causing the issue? [closed]
Hello I have a weird problem when browsing to my selfhosted Website:
when I browse to my VPS Domain (which should proxy it to my homeproxy (nginx) and then to home webserver1) on Edge/Chrome/Firefox/...
- 21
0
votes
0
answers
33
views
No Input Device after logging in user on Ubuntu 23.04
Hello I am having a weird problem, i say weird because of my lack of technical experience.
my Lenovo-Thinkpad T450 runs Ubuntu 23.04 (Lunar Lobster). usually the F4 key on this machine will handel ...
0
votes
0
answers
67
views
Ubuntu automatically changes Current DNS Server not resolving my local hosts correctly
I have the following setup on my local network:
A local DNS server running at 10.0.0.102
On the router i have set the primary DNS to 10.0.0.102 and secondary to 8.8.8.8
An Ubuntu server running on 10....
- 1
0
votes
0
answers
24
views
Modsecurity Nginx breaking Wordpress Woocommerce checkout page. Can't find working rule exclusions
I am running an Ubuntu 20.04 based LEMP server on a Raspberry Pi 4.
I am working on a Wordpress Woocommerce website at https://www.mcmo.is. Currently on iOS using Safari or Google Chrome, I can't get ...
- 113
2
votes
3
answers
1k
views
Ubuntu in Hyper-V stuck
so I tried to install Ubuntu 22.04.2 in Hyper-V on my Windows Server 2012. Installation goes fine but the first boot stops on black screen and a mouse cursor which doesn't move. I found some guide to ...
- 125
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1
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138
views
Cannot install kubectl on Ubuntu - GPG Error
Hi I'm trying to install kubectl following the native package install instructions on the official site, but I get the following error when I try to update apt package list before installing kubectl:
$...
- 3
0
votes
1
answer
43
views
PuTTY Reverse Tunnel to MySQL
I have:
A local Windows 10 PC running MySQL Server 8.0.33 on port 33060.
A remote Ubuntu 20.04.6 LTS VPS running MySQL Server 8.0.33 on port 3306.
I want to create a reverse tunnel using PuTTY on my ...
- 101
0
votes
0
answers
16
views
Rebuild a drive in a raid 1 array that got disconected
I am running on Ubuntu 20.04.4 LTS. I have 2 drives in a RAID 1 array. One of them got acidentely disconnected but is now connected again.
raid1 sdb1[1] sda1[0]
I have [U_]
How do I synchronize?
...
- 331
0
votes
1
answer
59
views
How to forward traffic through Linux box except requests to the box itself?
I have an Ubuntu box with IP forwarding enabled and a very simple iptables configuration to allow all packets from within the LAN to be forwarded:
echo 1 > /proc/sys/net/ipv4/ip_forward
/sbin/...
0
votes
0
answers
55
views
fail2ban block plex failed login attempts
I want to ban IPs who attempt to authenticate against my public Plex instance.
Im on Ubuntu and the log Im looking at is the following:
/var/lib/plexmediaserver/Library/Application\ Support/Plex\ ...
- 101
-1
votes
0
answers
10
views
How setup Ubuntu host server to share files and VM with windows with an ERP software to windows clients?
I'm attempting to set up the network of a small office from my company. I run an ERP that just works on Windows, and we need a file server as well. At the office, we have 8 client machines running ...
- 1
0
votes
2
answers
60
views
netstat no support on this system [closed]
in dealing with try to resolve another issue into my Ubuntu 22 OS
I need to check out the ports that tightvnc is listening on for connections.
I use this command : sudo netstat -lvp | grep vnc
BUT ...
- 103
0
votes
1
answer
31
views
Postfix/Dovecot Not receiving external emails in Ubuntu 16.04
I have read all of the threads and can't figure out what is the problem. I can send emails. I can receive emails from my localhost and my other email names of the same domain, but I cannot receive ...
- 103
0
votes
1
answer
19
views
Migrating server and backup server to bigger RAID 1 (software) arrays
I have 2 boxes. The server (actually an ownCloud server) and a backup server. Both are running Ubuntu servers.
The main server has a RAID 1 array of 2x2TB drives.
The backup server has a RAID 1 ...
- 331
0
votes
0
answers
25
views
How to set speed limit per IP in IP range in Ubuntu
What I want:
I've setup a openvpn-server and want the clients in range of 10.8.0.0/21 limit their speed to 10mbit for each IP as a total limit of 100mbit.
wan interface : eth0
openvpn interface : ...
- 101
0
votes
0
answers
36
views
Port forwarding in Ubuntu VPS server, from public ip to a clients
VPS in installed Ubuntu server 20.04 and OpenVPN, I need to forward all the traffic from a specific port of the vps public ip, to the same port of a VPN client.
My Ubuntu VPS ip is 107.172.142.153
And ...
0
votes
0
answers
27
views
Ubuntu20.04 : How to give non root user access to systemctl
The ubuntu version is 20.04
I am running a http service on port 6000.
I have created the service and as a user root i can run the service successfully
I have created a account svc_auto_bm and wanted ...
0
votes
1
answer
86
views
IPv6 to IPv4 converting - tunnel between to ubuntu servers
I live in a country that recently launched a heavy censorship protocol on Internet.
most of the IPv4s are restricted or completely banned.
I have two servers , one in my country and another one in ...
0
votes
1
answer
57
views
Sudoers NOPASSWD not working for specified commands
I have the following entries in the sudoers file:
christian ALL=(root)NOPASSWD: /usr/sbin/shutdown
christian ALL=(root)NOPASSWD: /usr/bin/systemctl start mc
When running sudo shutdown -h now or sudo ...
- 113
0
votes
0
answers
63
views
How was apache2 able to use 8+GB ram "in idle"? (oom-killer)
I bought a vps in Contabo, using ubuntu22, installed apache2, php, mariadb.Sometimes the apache2 uses all of my memory. Literally all. At idle, not really anything was running.
A php process was ...
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0
votes
0
answers
20
views
Bind9 and Web Server on the same machine + domain setup
I want to ask can I setup for example LAMP with all domains and Bind9 on the same machine ?
If yes, ok.
Now I have one .com domain for example : site.com
Now I want to understand the steps to do to ...
- 101
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votes
0
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15
views
Should I use a Squid on the host machine or a virtual machine?
I have a server from SoYouStart and 32 failover IPs.
I need these IPs for proxy (for scraping). Should I set up Squid on the host machine (Proxmox) or on a virtual machine like Ubuntu + Squid?
I read ...
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-1
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0
answers
47
views
How do I expand the disk size? /dev/sda is not populating, /dev/vda1 full
I started uploading images and got my /dev/vda1 full. How do I expand the size?
Googling told me to mount volumes. I use Digital Ocean, and followed these instructions:
# Format the volume
sudo mkfs....
- 107
0
votes
0
answers
76
views
netplan mac address matching doesn't seem to work
I have a small pc box that only have one network interface, and since I needed 2 more interfaces, I've bought two usb network cards. Both same manufacturer. I wanted to rename interfaces (since they ...
- 27
0
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1
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48
views
How can I compress files while uploading them to GCP?
I am trying to automate backups to a remote GCP bucket. I am using the gsutil CLI and Crontab to schedule transfers of all files in a given directory. I would like to compress the files as they are ...
google-cloud-platform
0
votes
0
answers
9
views
Networking issue in subdomain for two ISP - if one fails and other up
We have a subdomain which is connected through a ISP-A in CNAME. Through subdomain, a Program runs in a local server with ISP A. If the ISP-A is down, then program doesn't run. So we have added ISP-B ...
0
votes
1
answer
67
views
Setting mysql using ansible in ubuntu remote machine
I have written one ansible playbook for installing MySQL server in ubuntu remote machine but is not working here is the yaml code
---
- name: setting mysql in ubuntu
hosts: web01
become: yes
...
0
votes
0
answers
37
views
same proxy pass config not working on both instances
i have a config /etc/nginx/sites-available/test that only proxies one server the first (blog) and returns a nginx 404 on the second (api) I have tried trouble shooting but to no avail
i tried checking ...
- 1