All Questions
325,468
questions
158
votes
13
answers
331k
views
Is there a global, persistent CMD history?
Sometimes I forget how the exact syntax of a CMD command looks and then I would like to search my own CMD history. Clearly, within the same session, you can browse it with the up and down arrow keys ...
1
vote
1
answer
4k
views
iperf test in reverse direction gives different result
I used iperf to measure the max throughput for TCP connection between two ubuntu machines. Both the machines were directly connected be means of a 1Gbps cable. When I performed iperf tests i obtained ...
CommunityBot
- 1
0
votes
0
answers
19
views
Does Asterisk absolutely require Symmetric RTP from Twilio?
The question is as stated. I can't find a way to get 2-way audio working with Twilio and Asterisk (v.20.7); short of enabling their SymmetricRTP switch. I suspect the problem is in the SDP handshake, ...
- 101
0
votes
0
answers
21
views
Cannot access internal network of another PC [closed]
I have two PCs, PC1 and PC2 connected via switch. Both running Linux.
PC1 has two NIC. WAN NIC (192.168.1.128) is connected to switch.
LAN NIC (192.168.100.128) is internal. PC1 runs multiple services ...
- 303
3
votes
2
answers
9k
views
Azure VM cannot access itself via its public IP
I just completed migrating an Azure VM to a new region. I did this by exporting the VM's disks to a storage account in the new region and then creating new disks based on those images and then a new ...
CommunityBot
- 1
0
votes
1
answer
23
views
Reducing root partition in VPS (Ubuntu 20.04)
I have a virtual server that does not have access to rescue mode I only have ssh access
My disk size is 100 GB, which is all allocated to the root partition when installing the operating system.
I ...
- 33.3k
0
votes
0
answers
16
views
Error when installing kubelet from yum repo on Amazon Linux 2023
I tried to roughly follow Kubernetes the Hard Way to install Kubernetes from scratch. But I did it on AWS Graviton (Arm64) nodes with Amazon Linux 2023, mostly using cloud-init.
I installed most of ...
- 1,227
0
votes
0
answers
57
views
What to do with borderline DoS traffic? [closed]
My site has changed systems. It used to hold json files with details of content that would be processed by JavaScript for table displays. Those have been removed for a couple weeks and now my logs ...
- 101
0
votes
0
answers
29
views
transient, intermittent "No user exists" errors with SSSD and LDAP
I'm using SSSD and Google LDAP. My users can log (via tailscale SSH, if that matters)
in but after being logged in for a while they get errors like:
No user exists for uid 61270005 (also any command ...
- 13
-1
votes
0
answers
45
views
DDOS Attack On Website Using Cloudflare and Its Under Attack Mod Is On
My website using nginx has been down, and i suspect a DDOS attack, i have turned on Cloudflares Attack mode but thats is not helping. The load average is above 15 and website is not responding.
...
1
vote
2
answers
7k
views
Error response from daemon: Pool overlaps with other one on this address space (when on VPN)
In Ubuntu I am trying to create a docker network with a specified subnet when on VPN but I get the below error:
$ docker network create my-network --subnet 172.17.24.0/18
Error response from daemon: ...
CommunityBot
- 1
0
votes
0
answers
20
views
Psexec run command on remote host as SYSTEM
Can PSEXEC be run as SYSTEM on remote host?
Even though -u -p values are provided, it is returning "Access is denied".
As local administrator, I started a cmd session as SYSTEM. Then I ran a ...
- 36.8k
0
votes
1
answer
2k
views
Unable to remove network printers, they keep reappearing
I am having problems deleting printers on a Windows Server 2012 they keep reappearing after a while when the PrintSpooler service is running.
I have tried to list the printers in powershell with the ...
- 1
2
votes
0
answers
67
views
SELinux inside of a Docker Container
Here How to enable SELinux inside of a CentOS Docker container? someone explains that SELinux cannot be used in a Docker Container, is this still valid?
- 308
0
votes
2
answers
1k
views
Why is my logwatch conf with absolute paths LogFile entries not working?
The logwatch documentation says the LogFile command can handle absolute paths. Accordingly, I have a celery.conf file in /etc/logwatch/conf/services as follows:
Title = "Watchdog Celery worker errors"...
- 1
1
vote
1
answer
7k
views
Avoiding jinja templating delimiter in when statements
I'm currently porting my Ansible playbooks from version 2.1 to 2.7. Ansible now prints a warning if I use jinja templating delmiters such as {{ .. }} in a when clause.
[WARNING]: when statements ...
CommunityBot
- 1
0
votes
1
answer
63
views
Parse nested JSON logs in Grafana Loki (forwarded with Fluentd)
My lab has a few Docker containers as follows:
name
Docker image
Fluentd
fluent/fluentd:v1.16-1
Fluent-bit
cr.fluentbit.io/fluent/fluent-bit
Loki
grafana/loki
Grafana
grafana/grafana-enterprise
...
- 487
1
vote
1
answer
44
views
What should be the NodeClassRef for Karpenter's NodePool in GKE?
I have created a GKE cluster in GCP and wanted to install Karpenter on it for the autoscaling. While trying to install Karpenter, pods gives the error asking to create the NodeClaim resource which ...
google-cloud-platform
0
votes
0
answers
19
views
SMTP Server: Postfix w/ Dovecot - how to configure the allowed username + password?
I seek a Linux-based SMTP server.
I've read tutorials and specs regarding Postfix SASL with Dovecot, though I can't find how to configure the list of username and password which are allowed to send ...
- 175
0
votes
1
answer
44
views
Ansible "Failed to create temporary directory" (GCP)
I've encountered an issue with my Ansible playbook that provisions both a Kubernetes cluster and other servers within our cloud infrastructure. Specifically, the problem arises when I configure the &...
1
vote
0
answers
21
views
How to setup routing to the tun interface from an interface that is receiving tagged frames
I am configuring a Raspberry Pi to route traffic from a specific VLAN through a VPN, but I am encountering routing issues. Here’s an overview of my setup and the problems I'm facing:
Setup:
Raspberry ...
- 11
0
votes
1
answer
10k
views
Git pull a specific tag itself?
Because Jenkins pulls a git repo without tags, I'd like to pull the specific tag I'm interested in. Is there a syntax for this?
I'm aware of git syntaxes that pull all tags, and syntaxes that pull ...
CommunityBot
- 1
-1
votes
0
answers
38
views
I try to make a script with a cron script [closed]
i have a script file and i have add a cron to that file but dont work
this is the script please what im doing wrong?
the script
the cron exist but dont run
0
votes
0
answers
13
views
Kubernetes self managed cluster connection
I have managed to run Kubernetes cluster within my local network consisting if several nodes running as multipass instances and several devices. I am using cilium for the networking. What I am trying ...
-1
votes
0
answers
21
views
Ping another network from machine in network behind VPN client
I am trying to ping another network from Windows machine with IP 192.168.0.108 with routes
route add 10.8.0.0 MASK 255.255.255.0 192.168.0.112
route add 192.168.31.0 MASK 255.255.255.0 10.8.0.1
...
- 99
1
vote
2
answers
2k
views
AppLocker is not enforcing rules that have been defined
We have a Windows Server 2019 operating system image with a set of local AppLocker rules defined for the server itself. We are observing that AppLocker is not enforcing any of the rules when we open ...
- 4,514
4
votes
2
answers
15k
views
Cant connect from Windows host to pfSense (VirtualBox)
I have installed pfSense in VirtualBox. I'm trying to access its configuration through my windows' browser but I cannot.
In the virtual machine's properties, I have tried to configure the WAN ...
- 4,514
109
votes
13
answers
282k
views
df says disk is full, but it is not
On a virtualized server running Ubuntu 10.04, df reports the following:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 7.4G 7.0G 0 100% /
none ...
- 101
4
votes
3
answers
4k
views
How to scale docker swarm dynamically
We have a docker container which can service only one request from user at a time.
So, we want to scale up and down whenever there is a request from user.
But in the docker swarm I can see only ...
CommunityBot
- 1
2
votes
2
answers
398
views
How can I know which AWS S3 bucket(s) an AWS key and secret key that can access?
I have an AWS key and secret key that can access some AWS S3 buckets. How can I know which ones?
2
votes
3
answers
4k
views
.bash_history permissions mysteriously changed
So my ubuntu user's .bash_history just won't show up when I hit history. So I check permissions and the .bash_history in /home/ubuntu is now owned by root. Any idea what might've happened? I ...
- 1
-1
votes
1
answer
31
views
Redirect SSMTP emails from a computer to another email server
I was following this article on setting up a Mail Relay from one server to another, as I want to redirect all the system email, such as crontab errors from Server1 to Server2.
In order to do this, I ...
- 111
0
votes
0
answers
28
views
Wireguard DNS failure to resolve
It's always DNS...
I'm trying to set up a WireGuard server in an LXC container running on Proxmox. The VPN works in that all the local IP addresses are accessible but I can't get DNS working despite ...
0
votes
2
answers
673
views
How to track down IPv6 DNS server configuration with Wireshark?
What Wireshark filter should I use to track down IPv6 DNS server advertisements on the network? I don't see any DHCPv6 traffic on my network, so I assume that the config of clients is happening ...
- 9,714
2
votes
1
answer
4k
views
Google Authenticator FreeRADIUS
I'm trying to implement google authenticator PAM module in FreeRADIUS on RHEL7.
I've loosely followed this guide: http://www.supertechguy.com/help/security/freeradius-google-auth
The reason I say ...
CommunityBot
- 1
0
votes
1
answer
1k
views
Ubuntu 20.04 Join Windows Domain for Samba Shares
I've been trying to get an Ubuntu 20.04 server VM (Hyper-V) to join a Windows domain for the purpose of acting as a file server for Windows users, authenticating access to each directory for Windows ...
- 1
0
votes
1
answer
45
views
HP ProLiant DL360 gen8 - Windows Server unable to image
HP ProLiant DL360 gen8 in a test lab. It has an HP Smart Array P420I Controller, with a few arrays configured on it.
I'm attempting to image one of the drives available (can't see all of arrays I ...
- 11
0
votes
0
answers
16
views
Asterisk can not register endpoint, the log say: wrong password
I dont know why I got this problem, can someone help?
<--- SIP read from UDP:192.168.1.3:39681 --->
REGISTER sip:192.168.1.9:5060;transport=UDP SIP/2.0
Via: SIP/2.0/UDP 192.168.1.3:39681;branch=...
- 101
1
vote
3
answers
5k
views
Nginx http redirect to https when https proxy_pass
I have an nginx configuration which redirect from http to https, but on the https side the location / {} include a proxy_pass to a Go service.
server {
listen 80 default_server;
listen [::]:80 ...
CommunityBot
- 1
4
votes
1
answer
4k
views
rsyslog - How to flush queue?
I'm using rsyslog to get logs from haproxy and put them into logstash for elasticsearch/kibana.
Everything was working ok, but i've found something strange in rsyslog.
I've found that i've got ...
- 358
-1
votes
1
answer
142
views
Client 443/HTTPS -> Virtual IP -> HA Proxy 80/HTTP and 443/HTTPS SSL terminaison -> Varnish 81/HTTP -> 82/HTTPS and 442/HTTPS Apache
At home, I have 1 hosted server with some websites, using Virtualmin (great tool!) and everything is working fine with HTTPS, HTTP...even behind my internet router, using NAT by forwarding ports 80 ...
- 1
2
votes
4
answers
779
views
How destination mail server can know the DKIM selector
It is possible to set a "subdomain" in DKIM DNS record name.
This "subdomain" is called a selector. It allows to have multiple DKIM keys for the same domain.
There is something I ...
- 185
-1
votes
1
answer
34
views
How to use a port that is labeled RS232 [closed]
I have a Medal Power Hybrid Solar Inverter (5.5kW, 48V) with a connector labeled RS232.
I'm attempting to retrieve data from the inverter by connecting it to my network via the LAN port. However, I'm ...
- 36.8k
-1
votes
0
answers
23
views
Web server behind WireGuard tunnel doesn't see real client IP
Server WireGuard configuration:
[Interface]
Address = 192.168.0.1
PrivateKey = {{ wg_pk_home }}
ListenPort = 1194
# packet forwarding (IPv4)
...
- 36.8k
-1
votes
1
answer
32
views
IIS - terminate connections on server-level exceptions
I'm working on some Security Technical Instruction Guides (STIGs) and I have a new rule with the following discussion text:
The web server defines a set of exceptions for every HTTP status code. Each ...
- 36.8k
0
votes
0
answers
27
views
Azure Files connection lost to FsLogix Profile VHDX (Kerberos Authentication)
The Setup:
We deployed 2 multi-session host VMs with NVIDIA GPU and 110GM RAM (CPU SKU = NC16as T4 v3).
Session hosts (pooled AVD config) are Entra ID joined and receive policies using InTune. ...
- 36.8k
2
votes
1
answer
4k
views
Secure PHP on IIS 8.5
I'm using IIS 8.5 on Windows Server 2012 R2 to host ASP.NET and also PHP-Applications. Because there are a few different PHP-Apps, I want to restrict the access by using open_basedir. The problem: ...
CommunityBot
- 1
7
votes
1
answer
94k
views
Is there a way to run PsExec specifying a user name and password (-u -p) when running as Local System?
I have a Windows Service running as Local System on Windows Server 2003 and I'm trying to use PsExec to run a command as another user (using the -u -p parameters) but I keep getting Access is denied. ...
0
votes
3
answers
186
views
If I attach enough equipment to my UPS to exceed theoretical max amps but stay under the listed Watt Rating and VA Rating, how will that work out?
I have an APC BX1500M UPS rated at 900 W and 1500 VA.
I want to attach three devices for a combined wattage of 816 Watts and a combined amperage of 8.1 Amps.
Note: This total was determined from the ...
2
votes
2
answers
7k
views
zfs module not found on centos after restart
After I rebooted a CentOS server, ZFS does not work:
$ sudo zfs list
The ZFS modules are not loaded.
Try running '/sbin/modprobe zfs' as root to load them.
$ sudo modprobe zfs
modprobe: FATAL: ...
CommunityBot
- 1