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How to test the built in spamassassin auto update feature on Ubuntu server 20.02

I am running an Ubuntu 20.04 based LEMP server, and I have properly set up an email system and added spamassassin to it. Prior to this post, spamassassin was sending me the following email ...
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  • 93
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0 answers
20 views

Wireguard Client Addition without restart

I am building a Wireguard VPN network, in which I want to add and remove peers on the server without restarting the service or losing connections with existing peers. Tried searching for the results, ...
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0 votes
1 answer
24 views

Problems starting mysqld

When I try to start mysqld i get this error.. Any ideas on how to fix this? Should I run it as sudo? From some tutorial on internet they did not need to use sudo. I am using MYSQL community edition on ...
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-5 votes
2 answers
67 views

Why are server CPUs so weak and expensive?

So looking at CPUs with good single core performance. One example would be AMD EPYC 73F3 which is (according to passmark) on par with Ryzen 5950X, but 10 times more expensive and it's rated over x2 ...
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  • 141
1 vote
0 answers
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Connection with Linux client to VPN azure giving up

I'm trying to connect from a Linux to a VPN in Azure. I can connect in windows clients and am trying to setup the client in Linux I followed the instructions in this tutorial but i cannot stablish a ...
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26 views

Apache - Active Directory LDAP authorization

I'm running Apache 2.4 on Fedora 34. I've configured user authorization based on Active Directory usernames and passwords with "ldap_module" and "authnz_ldap_module" and this entry ...
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  • 21
-1 votes
0 answers
14 views

Advice in how to properly maintain my UPS

First of all, I hope this is the right place to ask. I have looked around and this seems to be the correct place inside SE. I do not own a server but I use a really old APC Smart-UPS SU1000INET for my ...
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  • 101
1 vote
1 answer
10 views

Apache2 - How to serve static files on a specific folder?

I have 2 virtual hosts serving 2 different sites in my Ubuntu Server 20.04 both in port 80 and 443. I want to use the same server to serve some static files for download on a custom port, let's say ...
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1 vote
1 answer
14 views

KeepAlived service running but does not executes the check haproxy script

I have configured a failover load balancer, so that it acts as a backup whenever my primary goes down. So I have setup Keepalived that switches the floating virtual IP address to the other machine ...
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0 votes
1 answer
16 views

Chrome shows ERR_CERT_COMMON_NAME_INVALID when firefox is happy

Learning how to work with certificates, maybe will have local CA server. I have server with BMC, so I used it for practicing. Generated CA pair then host pair and then signed host CSR with CA pair to ...
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-2 votes
0 answers
15 views

DNS Not Working in Centos7 Server

I'm using PowerDns. Created private hostnames pointing towards my ip but when i check on dnschecker.org it is not pointing towards my server and nameservers are also not working therefore unable to ...
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0 votes
2 answers
35 views

Exchange 2016 - new Databases and Migration

We are running Exchange 2016, 14 Databases currently running on drive letters. We want to move to mount points, and as part of this, create new DBs and migrate all mailboxes (as this will also clear ...
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0 votes
1 answer
11 views

Nginx can't serve static file from home directory

I have a index.html file in both locations /home/ubuntu/web/build and /var/www/html There is no other complicated rules. However only root /var/www/html works! # root /home/ubuntu/web/build; ...
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  • 121
0 votes
1 answer
17 views

Linux centos firewall commands not found

firewalld-cmd--add-service=http--zone=public--permanent firewalld-cmd--add-port=80/tcp--zone=public--permanent firewalld-cmd--reload``` lamps: line 16: firewalld-cmd--add-service=mysql--zone=public--...
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0 votes
1 answer
19 views

Routing fwmark to VPN gateway using nftables mark

I'm trying to setup selective routing of a traffic filtered by IP address over OpenVPN on my OpenWRT router I have an OpenVPN profile up and working with route-nopull option to disable setting default ...
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0 votes
1 answer
47 views

Running docker app on my own domain

I have a VPS Linux (Ubuntu) server with specific IP and I would like to run my app on my own domain http://my_domain.com. I have built a docker container and it works well on localhost 0.0.0.0:80. ...
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0 votes
0 answers
12 views

Proxychains in Kali Linux didn't work even if I configured it properly

I just see the video that NetworkChuck made named "learning hacking? DON'T make this mistake!! (hide yourself with Kali Linux and ProxyChains)" and I wanted to try it out. I configured the ...
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-1 votes
0 answers
22 views

Someone keep spam connect into my small server using remote desktop [closed]

I have a small windows server and allow remote desktop, I also use port forwarding for connecting using public ip. A person keep trying connect into my server every second with bots(event viewer image)...
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0 answers
26 views

Postfix - Spamassassin Autoresponse coexistence and Disclaimer [closed]

this is my first Postfix project and i have documented a lot, i have read several guides and the system (still in the test phase) works. I have implemented Spamassassin together with Amavis and ClamAV,...
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0 votes
0 answers
19 views

What is the difference between the private addresses on eth0 and eth1 on Digital Ocean?

Here is the output of command ip a on my Digital Ocean server: root@ubuntu-s-1vcpu-1gb-blr1-01:~# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 ...
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10 votes
1 answer
680 views

Do SSL Certs containing two wildcards work (esp. on Let's Encrypt)? [duplicate]

I want to include two wildcards in an SSL cert (will be) signed by Let's Encrypt: *.*.thost3.de. Will this cert match any hostnames matching that rule (e.g. example.example.thost3.de, hello.world....
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  • 201
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0 answers
16 views

Failed to start Berkeley Internet Name Domain...S). Centos7

I'm new to linux environment and trying to build a web hosting server for my few webistes. But my name servers are not pointing towards my server. I red many articles on many forums and used this ...
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0 votes
1 answer
28 views

Mysql constantly writing to binlog, rapidly using up disk space

My Ubuntu server started running a high amount of IO operations. The server has a few WordPress websites on it, but they get at most a few dozen views per day. In a couple of days 30GB of disk space ...
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  • 103
0 votes
0 answers
8 views

Wildcard in apache virtualhost sitename

I want to use wildcards in Apache. What I actually want to do is: ServerName wiki-*.thost3.de, and the * must be accessible by further configurations. Provide the contents at /var/www/wiki/*, where * ...
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  • 201
0 votes
0 answers
14 views

How to enable TUN in Ubuntu running in a docker container

So basically I'm running an Ubuntu container in docker, with the host system running Ubuntu Server 20.4 LTS, and the container running 22.4 LTS. My intended goal is to have a container to download ...
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0 votes
1 answer
18 views

Can't connect to sendgrid from server (and iptables woes)

I'm getting timeouts when using telnet smtp.sendgrid.net 587 on my VPS, but it works fine from my local ubuntu station..so I think there's some firewall issue. I have a docker setup (yes that has some ...
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  • 103
0 votes
0 answers
16 views

GNU Linux Debian 11 (should work for Ubuntu too) - compiling latest kernel (Linux/x86 5.17.7) - results in Volume group "name-vg" not found

Dear internet & users & robots & AIs & other entities with access to digital, one fine day... decided to compile the latest currently available kernel under Debian 11. last time did ...
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0 votes
0 answers
16 views

storage backup solution after file finished copy

I have 2 types of storage: 1) permanent [p1,p2,...] 2) backup [b1,b2,...]. While system works, It generates huge files (size > 50GB) and they are copied to permanent storage. I need a backup ...
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  • 1
0 votes
0 answers
13 views

SM Indicate HDD LED

Sample Hello, sorry for my english. not my native. I cant resolve why blinking indicates. Right now i dont have IPMI access Right now i have access to OS (Ubuntu 20.04) I finded this and associate ...
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-1 votes
0 answers
9 views

How to enumerate/scan for private dns subdomains through a VPN connection

I need to enumerate/scan a target IP address through a VPN on a private network. The target has an apache web server on port 80. No DNS server is available for the target since it is on the Hackthebox ...
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-1 votes
0 answers
20 views

BIND9 installed on CentOs security points

Hope you all doing Well. Actually we are running a DNS servers on CentOs using BIND9, they are recursive/authoritative. My question is any way to filter/Stop/Limit DNS query based types like (TXT, ...
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-1 votes
0 answers
8 views

Replace Optical drive with SSD Caddy - HP Proliant DL380e gen8

I have recently acquired a HP Proliant DL380e Gen8 + a storage array. The need: Need to utilize the Storage array as just a bunch of disks, preferably with TrueNAS and ZFS for inter usability, if the ...
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0 votes
0 answers
3 views

Could Not Create an VM Instance Template - See Error below

Invalid value for field 'resource.properties.scheduling.provisioningModel': 'SPOT'. preemptible=false and provisioning_model=SPOT is contradicting.
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2 votes
1 answer
32 views

New LVM VDO logical volume inactive at startup, even with "--activate y" parameter

I'm trying to make LVM VDO work on my Debian 11.3 (test VM installed from scratch). I've shared my installation procedure here if someone wants to reproduce the problem. Now I'm stuck with a "...
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-1 votes
0 answers
11 views

Cant connect to regular Server. Maybe someone have a idea what to check [closed]

actually i have the problem on same clients, that i cannot connect to a game server, when i switch to another network. For example - at home it works for me, at my girlfriends house it doesnt work. I ...
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0 votes
1 answer
10 views

mysqldump - username takes "-p" as well

I use the following script to read database credentials from a Wordpress installation: DB_NAME=$(sed -n "s/define( *'DB_NAME', *'\([^']*\)'.*/\1/p" wp-config.php) DB_USER=$(sed -n "s/...
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  • 103
0 votes
0 answers
13 views

install mysql in debian 9

I need to install MySQL 7.5 on Debian 9 stretch, I tried to download it using PPA but when I try to update and complete download I get error apt-key expire. Err:2 http://repo.mysql.com/apt/debian ...
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0 votes
0 answers
19 views

Force non-empty MAIL FROM for outgoing email

I am using postfix on a Debian server, primarily to send outgoing email for websites and notifications, and have run into an issue where outgoing email to a certain mailing list provider is rejected ...
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0 votes
1 answer
23 views

IIS Send 200 Instead of 405 when POST to a Static File

I am trying to deploy a static network speed test application. IIS need to behave like This Nginx Config. Everything working fine, but I need to send 200 instead of 405. When Running Upload Test. (...
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0 votes
0 answers
15 views

Command logging for chroot ssh users

I have a ubuntu server that allows users access via ssh. When they log in they are contained to their chroot directory. I'm looking for a way to log commands used by the users. I've tried using snoopy ...
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-1 votes
1 answer
16 views

How to move PAM from DR to primary machine without any downtime?

My environment is : Primary site : 2 MBX and 2 CAS -- fsw \srv01\dag DR Site : 1 MBX and 1 CAS --alternate fsw \srvdr1\dag my question is : I want to move primary mailbox node (pr-mbx-01 )...
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  • 317
0 votes
1 answer
8 views

modoboa on ubuntu 20.04 : supervisord exited: policyd (exit status 1; not expected)

New modoboa 2.o install on ubuntu 20.04 doesnt work and giving error in syslog. supervisord exited: policyd (exit status 1; not expected) Tried everything no clue
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  • 116
0 votes
2 answers
28 views

Secondary IP not pingable from internet - Ubuntu 20.04 using netplan on Hetzner server

Let me start be saying I'm not an network expert. That being said, I'd need some help here as I'm breaking my head on this issue for two days now. I have several questions but will focus only on one ...
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0 votes
1 answer
15 views

How to assign internal hostnames to Fargate internal services?

I'm using CDK (via the Typescript lib) to setup my network infrastructure on ECS. There are some background workers that often report errors to a Slack channel and I'd like to assign random hostnames ...
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0 votes
0 answers
17 views

How can I use name.com's and AWS's nameservers at the same time

I want to use Titan Email extension but it requires changing my nameservers to Name.com's nameservers. The warning message is like that: But I also need to use AWS's nameservers to use Route 53. I've ...
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0 votes
0 answers
15 views

Wireguard Client Cannot Connect to Server Subnet

I have a working setup of wireguard (Ubuntu 20.04 server, one Ubuntu 20.04 client and one Windows 10 client). I can connect to devices behind the VPN server. VPN Server (EndPoint): 1.2.3.2/32 Public ...
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0 votes
0 answers
24 views

How to make Nginx reverse proxy wait until upstream comes online?

I have a server app that listens on a UNIX socket, and Nginx serving as a reverse proxy. Now I want Nginx to wait until my app comes online when e.g. I deploy an update and restart it, without ...
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  • 111
0 votes
0 answers
13 views

My hosted server is probably throttling my connections to it

I have some big files I want to download from the hosted server to my personal computer. I've tried using scp and a python script to share a file via HTTP, and both of these systems share the file at ...
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1 vote
1 answer
54 views

NGNIX enforce HTTPS

for my Webapp (Angular App) we are using NGNIX as web server. I have a task where I need to make sure all assets/images are loaded over HTTPS. In the Browser Dev tools, I see the request is sent over ...
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1 vote
1 answer
21 views

Exchange 2019 refusing attachments within permitted size

I have external users (different mail host) trying to send messages to internal users on our Exchange 2019 server. The attachments are large (7MB-10MB before Base64 encoding), and the senders are ...
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