Latest Server related questions

Score: 0
Mike avatar
Where is RabbitMQ config file, as its log shows "config file(s) : (none)"
ru flag

I am new to RabbitMQ and have newly installed RabbitMQ 3.7.17 on a test virtual machine, it runs OK and I'm able to log in on its web interface.

I'm looking at some unclear notes left by the previous engineer, mentioning some required configuration changes of management.listener.port = 9999 and management.listener.ip = 0.0.0.0. Tentatively I think these items belong to the configuration keys of Rab ...

Score: 0
Sameer Shaikh avatar
DFS Namespace priorities
us flag

This is regarding "Setting DFS Set Target Priority (with files open)" - Your answer on it. Setting DFS Set Target Priority (with files open)

When you will modify the prioritization, yours clients will not be discconected and not will change instantly their reference. They will change at the end of the cache duration or at their next login on the dfs service. You can change the cache duration in yo ...

Score: 0
ban `./ANY/IN` DNS queries using iptables
ph flag

I am getting some denied DNS queries I'd like to ban using iptables, to avoid bind to send augmented replies to the server ... and that they're simply annoying in my logs.

(.): query (cache) './ANY/IN' denied

I know that, with queries like

(domain.com): query (cache) 'domain.com/ANY/IN' denied

I can block with just:

iptables -I INPUT -j DROP -p udp --dport 53 -m string --hex-string "|06|domain| ...
Score: 0
The MW avatar
Gmail reject emails sent from my domain: due to the very low reputation
cn flag

We have been using our SMTP server to send emails to our clients for a few years, all of a sudden, gmail rejected them all. We have not changed anything, server is not compromised, and we don't send spam emails. We only send about 100-200 emails to our clients per day.

I checked spf, dkim, dmarc etc, all look good.

So how to fix this?

Google has a postmaster tool, I have verified the domain and the smt ...

Score: 1
Matias Haeussler avatar
AWS Managed Rule Pricing
cn flag

I completely read the AWS page for AWS WAF pricing, however I am still not sure how much would it cost if I create a single AWS WAF and hire just the AWS Managed Rule Set "Core Rule Set"

As I understand it should be 5 US/month for the WAF and just 1 US/mont for the complete Managed Rule Set because its rules have not been created by me and each Managed Rule Set costs 1 US/month, and that should b ...

Score: 0
Jonathan Brickman of Topeka KS avatar
Throttle Windows to match local storage, to prevent SVI buildup?
mz flag

I'm seeing a rather large number of machines lately with System Volume Information folders ranging from large (50G) to huge (350G), on both desktops (Windows 10, various builds) and servers (2012R2, 2016, 2019). I have ways of clearing them fairly well established, but preventatives aren't there yet. I'm using Optimize-Volume in multiple ways and doing other things too, but it's not doing enough, they ...

Score: 0
Ryan Fisler avatar
421 Misdirected Request error when loading my myurl that redirects to subdomain m.myurl
cn flag

When refreshing, it eventually loads.

The background is, I have a main domain, and two subdomains, blog.myurl and m.myurl The blog. is hosting blogger page with its own SSL The main domain and the m.myurl were using the same SSL

When opening my URL in any mobile browser, it will initially give the misdirected request notice before loading the site. (chrome, safari, firefox all tested and same issue ...

Score: 0
Dentiny avatar
Kubernetes LoadBalancer always sends the same seq#
jp flag

I deploy my service on Kubernetes pod(Deployment), and get my client-side talk with my deployed Service(LoadBalancer).

My service port # is 30015, so 21025 is the port # of LB.

While capturing packets, I found all packets sent from LB to pod is with seq # 1, so pod never updates its ack # and win-size, which leads to bad throughput.

Why does this happen?

wireshark screenshot

Score: 0
Jeff avatar
Why Do Our Remote Connection Softwares Drop Until DC is rebooted?
cn flag

I have been having a recurring issue (1-50 times/week!) where all employees using a remote connection software drop out at the same time and cannot reconnect until I reboot the DC (i.e. They get a "connection lost" message in the software and it continues to behave as though there were no internet connection on the other end). During this time, users connecting on traditional RDP do NOT disconnect. User ...

Score: 0
Fail2Ban banning addresses that SHOULD already be banned
in flag

I am running the default fail2ban ssh-auth rule to ban ips with 3 or more failed auth attempts in a window. However, I noticed a particular network being the source of a disproportionate amount of abusive traffic, so I decided to completely drop all traffic from them to receive fewer alerts and potentially improve the signal-to-noise ratio. To that end, I added the following IPTABLES rules:

-A INPU ...
Score: 0
Chris Nelson avatar
How are iptables parameters combined?
cn flag

I've searched and searched and can't find any information on how iptables parameters are combined.

If I want to match traffic to or from an IP address can I do -s a.b.c.d -d a.b.c.d? That is, are the -s and -d parameters combined as or (packet matches any) or and (packet matches all)?

Somewhat related, how do -m iprange and -s and -d interact? That is, can I use -m iprange --src-range 10.0.0.1-10. ...

Score: 1
Greg avatar
Kubernetes External DNS
jp flag

Has anyone configured Kube's external dns project to use an IP other then that of the service or ingress it is creating the record for?

I'm on bare metal and I have:

(Internet) -> (HAProxy) -> (Kube cluster)

so the address I want all the DNS entries for my external services to have is the IP address of HAProxy, not one owned by kube. A *. entry could work, but if this is possible, I would pre ...

Score: 0
Julian Rios avatar
Nginx Revers Proxy Overwrite Certificate
cn flag

I have a problem trying to overwrite a certificate using NGINX as a Reverse Proxy forwarding all request to an Apache Server with and old certificate (TLS 1.0)

This is the output for my .conf file:

server {
listen        80;
server_name   provision.metrotel.com.ar;
return 301 https://provision.metrotel.com.ar$request_uri;
}

server {
listen 443 ssl http2;
server_name provision.metrotel.com.ar;
ssl_cer ...
Score: 1
SSH with a dynamically-allocated remote forwarded port -- how to find the port number
cn flag

I need to establish an arbitrary remote-forwarded port to a specific local port when connecting to a server. I don't have admin rights on the server, which is a significant compute resource used by a large number of people. I can't pick a static remote port number, because I have no reason to expect that it will always be available.

I am using a command like ssh -R 0:localhost:8001 servername -- using  ...

Score: 1
Jetto Martínez avatar
Setted Apache subdomain redirect to another subdomain
fr flag

I'm trying to set up two subdomains, for a and b in domain.com. I use two .conf files, which look pretty much the same with according changes to ServerName and ProxyPass:

<VirtualHost *:80>
        ServerName a.domain.com #This was added as a try for a fix. 
        Redirect permanent /  https://a.domain.com/
</VirtualHost>

<VirtualHost *:443>

        ServerName a.domain.com
     ...

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