Latest Server related questions

Score: 1
Alexandru Trandafir Catalin avatar
Debugging Mariadb randomly crashing
br flag

These are the logs journalctl -u mariadb -f from the past days at the moment of the crash:

Mar 27 14:25:35 new-server.novalocal mariadbd[30060]: 2023-03-27 14:25:35 40923 [Warning] Access denied for user 'root'@'182.160.117.92' (using password: YES)
Mar 27 14:25:36 new-server.novalocal mariadbd[30060]: 2023-03-27 14:25:36 40924 [Warning] Access denied for user 'root'@'182.160.117.92' (using password: YES) ...
Score: 4
tom greene avatar
Windows File server heavy cpu usage - Render Farm with many clients reading data at once
pm flag

I have a windows file sever with Dual Xeon E5-2650v4 cpus. They are 14 core each so 28 cores total.

The network interface is a Mellanox Connectx3 40gbs.

The disk drives in the server are 7.68TB Sata 6gbps ssds x8 in a Raid 0 (software windows stripe)

There are 200 render nodes reading data from the above server in order to render 3d frames.

The file server has one numa node or cpu using 100% and the 2nd c ...

Score: 0
ThisGuyWithALotOfQuestions avatar
Cannot mount S3 bucket on Opensuse 15.1
ai flag

I am trying to mount an AWS S3 bucket on my Opensuse 15.1 system but the command never finishes. After activating debug functions, this is where it gets stuck eternally. Any ideas on how to address this issue?

* Connection #0 to host xxxxxxxxxx.s3.amazonaws.com left intact
[INF]       curl.cpp:RequestPerform(2051): HTTP response code 200
[INF] s3fs.cpp:s3fs_getattr(841): [path=/]
[INF] s3fs.cpp:s3f ...
Score: 0
insane_IT avatar
WinSCP with sk-ed25519 Key
uy flag

Since pageant cannot work with security keys / sk-ed25519, i moved over to OpenSSHs agent on Windows. Generating and importing sk-ed25519 is no problem. use these keys for open ssh sessions also works great.

i do not find a way to support these keys in Winscp. Is it possible or are there alternatives to winscp?

Score: 0
swegbarca avatar
Postfixadmin can't connect to mysql database (MariaDB)
im flag

I am trying to make my own mail service using Postfix, but I run into an issue in the setup phase, and it's that postfix can't connect to the database. Here's what the error log says:

⛔Database connection string : mysql:host=localhost;dbname=postfixadmindb;charset=UTF8
⛔Problem connecting to database, check database configuration ($CONF['database_*'] entries in config.local.php)
⛔SQLSTATE[H ...

Score: 0
Marina Herrero avatar
Extract specific file from tar.gz file?
pe flag

I am trying to extract a specific file from a tar.gz file. This is the code I used:

tar -zxvf Laura.tar.gz Laura/2021-10-22_16.52.10_pWOX5-YFP_x_membraneRed_Movie1/DC_CROPPED_h5/DC_CROPPED.h5

Laura.tar.gz is my tar.gz and DC_CROPPED.h5 is the file that I want to extract (its directory is the one that appears in the code).

Why am I not getting feedback as I run the code? I feel like verbose (-v)  ...

Score: 0
Ariel E avatar
cat /proc/pid/cmdline hangs (no cgroups, no nfs or network fs, no memory issues)
cz flag

We are a bit stumped. Once in a while ps/w hang forever (at least an hour) on our server, and it is on reading /proc/pid/cmdline for a process (happend twice today, verified with strace cat directly on cmdline). Only things that fixes it is a kill -9.

There are no containers running on the server, and no OOM conditions (actually >3TB memory free). No NFS or other network filesystems.

Running 5.19.0-101 ...

Score: 0
Artur avatar
Radius authorized WiFi clients cannot access network
id flag

I am using Fortigate + FortiAP and a Radius (WS 2019 NPS) for authorization. I can access the WiFi, I receive IP from dhcp (which is in the network), however I cannot go anywhere else. I cannot even ping the default gateway, nor dhcp server from my wifi's scope (got several of them). For example, I am accessing SSID1, receiving 10.10.0.3/16 IP, I can't ping .1 (GW), .2 (DHCP). However I can be pinged fr ...

Score: 0
Dominique avatar
How to show a password-containing automated generated image, whose "content" is "copyable"?
nl flag

I'm responsible for a MediaWiki in my company. That Mediawiki contains information, like passwords. Currently those passwords are stored on the server, hosting the MediaWiki, but when a person surfs to that MediaWiki website, the traffic is not encoded (when I use a simple sniffer, I can read the passwords).

There are different approaches to such an issue:

  1. I can turn the MediaWiki website, who is curren ...
Score: 1
equin0x80 avatar
Windows desktop shortcut keeps losing its DPI override setting
cn flag

We have an internal desktop application developed in C# (Windows Forms). One of our users (Windows 10 64-bit) has her display set to 125% zoom (Display settings > Scale and layout). The application was not designed to work at different zoom levels, so we have given the user a desktop shortcut that overrides the DPI to make it look better (Properties > Compatibility tab > Override high DPI scali ...

Score: 0
Lucian avatar
Kubelet Error - the container runtime endpoint address was not specified or empty
do flag

I try to install Kubernetes Cluster v1.26 (3 nodes - Rocky 9) using kubeadm and I have a problem regarding kubelet. I have followed this tutorial in parallel with official kubernetes cluster installation.

After kubelet installation, the status kubelet is:

systemctl status kubelet

● kubelet.service - kubelet: The Kubernetes Node Agent
     Loaded: loaded (/usr/lib/systemd/system/kubelet.service; en ...
Score: 0
befaro avatar
How to make Ubuntu VM available to multiple users in the cloud?
in flag

I have a design technical question.

Let me describe the use case first:

I have 20 students. My idea is that they all can run a full Ubuntu Desktop from within their web browser. Everyone should have their own user account (preferable connected to a running LDAP server).

So I kind of want to have a small self-hosted AWS EC2.

That's the plan. The question is how to achieve that? I guess there are multiple s ...

Score: 0
momi bhatti avatar
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages
tt flag

I'm typing this command

Sudo apt-get instal postfix 

and getting this error

Reading package lists... Done
Building dependency tree... Done

Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Inco ...
Score: 0
timppu avatar
Ubuntu: How to lock php to certain version?
sa flag

A client running Ubuntu 18.04 wants to update php from 7.2.24-0ubuntu0.18.04.17 (cli) to the latest 7.4 version, and lock it there (the software he uses does not work with php8). I have seen other questions about locking packages to certain version, but I am unsure what I am doing wrong, and is php a special case?

So far I've done this:

sudo add-apt-repository ppa:ondrej/php
sudo apt update
sudo apt i ...
Score: 0
Rehan Azher avatar
HaProxy Configuration For Microsoft Graph API and OAuth Token
gu flag

I am not an expert with HA proxy, that can be the first reason for my requests getting failed.

I have a Java application that is on a server which dont have access to Internet. Access is only available via HA Proxy. So I was trying to configure HA proxy for the microsoft Graph API.

Microsoft Graph uses following two domains:

https://graph.microsoft.com --> For Graph API calls https://login.microsoft ...

Score: 0
Liero avatar
Scheduled task with powershell won't restart when the script fails
ba flag

Scenario

I want to invoke a rest api on daily basis with some retry mechanism in case the rest api is not available

Problem

Even when the action exits with a non zero exit code, it is not restarted.

Task Scheduler successfully completed task "\MyTasks\test" , instance "{334ca542-9459-49db-9d0a-17587c9fe171}" , action "powershell.exe" with return code 4294967245.

<Event xmlns="http://schemas.microso ...
Score: 0
shunya avatar
Error in udp reverse proxy with nginx stream failed (90: Message too long)
gn flag

I want to proxy UDP traffic with nginx. nginx doesn't complain about the configuration. The client connects halfway (it says it can reach the end server), but the connection gets stuck and eventually times out.

nginx version: nginx/1.18.0 (Ubuntu)

nginx.conf

worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 2000;
    # multi_accept on;
 ...
Score: 0
Shawn avatar
EC2 instance randomly crash
ru flag

My EC2 instance kept crashing, here is the syslog, can server admin expert share some insight?

https://pastebin.com/jfP8qhZX

Score: 0
Konrads avatar
ESXi/vSphere storage has free space but VMs suspend due to lack of space
ru flag

A three node ESXi cluster is managed by vSphere. It uses a vSAN storage which comprises from directly attached disks of the ESXi hosts. The total capacity is ~6TB and vSphere clearly indicates that there is free space to the tune of several hundred gigabytes (I refreshed the storage capacity to validate).

However, VMs are being suspended by ESXi with this message:

Message on vm001 on esxihost1.do ...

Score: 0
Clifton Zama avatar
Dovecot failing to authenticate new users
ca flag

I have set up postfix/dovecot with the following dovecot.conf:

disable_plaintext_auth = no
mail_privileged_group = mail
mail_location = mbox:~/mail:INBOX=/var/mail/%u
userdb {
  driver = passwd
}
passdb {
  args = %s
  driver = pam
}
protocols = " imap"

protocol imap {
  mail_plugins = " autocreate"
}
plugin {
  autocreate = Trash
  autocreate2 = Sent
  autosubscribe = Trash
  autosubscribe2 = Sen ...
Score: 0
Joe Rocksford avatar
Impersonation Insight - Microsoft 365 security
mt flag

Using impersonation insight to view domains that are sending phishes, there are several that are being delivered, even though our policy is to quarantine.

One domain that is commonly abused is icloud.com. Although, there are some false positives being labeled as impersonated and being delivered, but most are nasty phishes.

Instead of quarantining, is Microsoft adding a hit to the score to move to q ...

Score: 0
nadrad avatar
A script can send emails when I run it manually, but not when run by crontab
ki flag

I've written a script that emails me some information using ssmtp from an Ubuntu server. It works fine when I run it as root, but it fails when it's run with root's crontab.

I can see this error in the logs: Unable to set From="[email protected]"

This is my ssmtp.conf:

UseSTARTTLS=YES                                                                                  
[email protected]
mailhub=smtp.example.c ...
Score: -1
user3364391 avatar
Incorrect IP address of docker container
ga flag

I use RockyLinux and I have installed Docker for my services. My docker-compose.yml file looks similar like this:

version: "3.9"
 
services:
  service_a:
    container_name: service_a
    build: ./images/service_a
    hostname: service_a
    restart: always    
    environment:
      TZ: 'Europe/Warsaw'
    networks:
      default_network:
        ipv4_address: 172.16.238.20
        aliases:
       ...
Score: 0
Jackie avatar
How do I cycle the secret in the permissions tab for an Alexa Skill?
ng flag

I accidentally compromised my secret for my Alexa skill found here...

enter image description here

So now I can't figure out how to Cycle it. Do I need to delete the whole skill and recreate it?

Score: 1
Johnny Canuck avatar
ErrorDocs | VirtualHost | Apache 2.2.x
pl flag

So, I'm having a challenge trying to get my virtual hosts (in the example, called bozo) to 'point' at the right error documents for 401, 403,... errors. I am trying the following construct, but it doesn't seem to work:

 <VirtualHost <ip.address.here>
  ServerAdmin [email protected]
  DocumentRoot /home/www/htdocs/virtual/bozo
  ServerName www.bozoclown.com
  ErrorLog logs/bozo_error_log

 ...
Score: 1
Leapp always fails upgrade: more space needed
in flag

I'm trying to upgrade a SL/Centos 7.9 to AlmaLinux with Leap. I followed the instructions here but it always fails with

At least 3178MB more space needed on the / filesystem.

I'm increased the disk size by 5Gb and then another 5G but the message is identical. I've also set export LEAPP_OVL_SIZE=3000 according to some info, and then some more. No change.

$ df -h 
Filesystem           Size  Used A ...
Score: -1
Abd Alrhman avatar
Can I restore my HP array after 2 disks replacement?
mx flag

I have HP array with 12 disk each on 2 TB. I configured them with RAID5 Suddenly two disk has ben failed and after two days another disk have been failed. And the array failed to start. I replaced the two failed disks. The array configuration utility show me option to "re-enable the array"... My question is if I choose that option, will I recover my data? Or is it lost?

Score: 0
Alessandro avatar
Wsus client getting error 403 (0x80244018)
tw flag

It's been a week that my clients can't download updates from my wsus server. They control and find updates normally but when it comes to download them, they are all getting 403 error from the server. Here the log file entry:

2023/03/20 08:55:33.7366979 12264 1424  DownloadManager DO job {FB5BA17F-944D-4569-84F0-58FF9E125F57} failed, updateId = 93C74394-F400-4CF4-B49D-B750156013E0.201, hr = 0x801901 ...
Score: 0
jenkins on kubernetes, jobs are not running, how to fix that?
kr flag

When I to run any job, getting this error in jenkins logs. The job just stuck in pending state.

fully completed. We have now 2 computer(s)
2023-03-27 15:21:32.237+0000 [id=34]    WARNING j.u.ErrorLoggingScheduledThreadPoolExecutor#afterExecute: failure in task not wrapped in SafeTimerTask
java.lang.NoSuchMethodError: 'io.fabric8.kubernetes.client.Watch io.fabric8.kubernetes.client.dsl.NonNamespaceO ...
Score: 0
user1821820 avatar
How to access virtual machines via openvpn
cn flag

Ahoj, any advice would be appreciated, this is what I have and what I need to accomplish:

  1. Strong server (Debian) is running 10.5.234.23 and I installed Virtualbox there so I can setup 5 virtual machines on separate 192.168.56.x network. Each machine will have static machine assigned. (192.168.56.10, 192.168.56.11, 192.168.56.12, 192.168.56.13, 192.168.56.14) This strong server has openvpn installe ...

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