2
votes
0answers
5 views

Is it possible to process millions of datagrams per second with Windows?

In a recent test on a high-spec NUMA machine with 2 10Gb ethernet NICs on Windows 2012 R2, I was able to do hundreds of thousands of small (around 150 Bytes) UDP datagrams per second - albeit with a ...
-2
votes
0answers
8 views

What DNS settings I need to do to create a direct internet mailer?

I'm wanting to create a direct mailer for a cluster of cloud servers using docker. I started off with a default installation of postfix and attempted to send email to myself. It arrived but was ...
0
votes
0answers
2 views

How does pam_limits decide on the default limits?

In a linux system that is using the pam_limits module, but has nothing configured in /etc/security/limits.conf (or /etc/security/limits.d/*) how does pam_limits decided on what limits to implement?
2
votes
0answers
8 views

Can't access newly migrated Hyper V guest from LAN

I migrated a working Hyper-V guest server from one physical server to another by stopping the machine, copying the files manually, then importing by "registering in place". The import completed and ...
2
votes
0answers
9 views

Bash prompt: using \[ and \] within PROMPT_COMMAND

I'm working on a bash prompt. I'm also trying to create the prompt intelligently, so that it will be easily readable and maintainable. That means not having one huge export PS1. Various sources ...
0
votes
0answers
7 views

Is it possible to set the TTL of an Azure VM?

In this question Azure VM server url not resolving after re-boot I could not get to the Azure server via URL after I shut it down and rebooted. This is probably likely because I was assigned a new ip ...
2
votes
0answers
7 views

How to display a graphite graph of used memory when you have total memory and free memory

My servers send mem_total and mem_free metrics to Graphite, but I'd like to display mem_used on my dashboard. I'm currently solving the problem by doing: ...
2
votes
0answers
7 views

CISCO SSL VPN (multiple Sites)

I'm having a small issues and I'm sure it's NAT related. Our Users connect to SSL VPN in Ft. Worth. We also have a site up in Dallas. There is a current Site to Site connection there with full ...
0
votes
0answers
5 views

How to sync folders between two Windows Servers in Amazon EC2

I have two servers running Windows Server 2012 in Amazon Cloud. One is hosted in EC2 (A) and another - in VPC (B). I have a folder in the same location on both servers. And I need to sync files from ...
1
vote
0answers
6 views

Roundcube MySQL/session issues, “no valid session data found”

So Roundcube is connected to MySQL fine, and is running queries. However, whenever I login, I get a "Your session was invalid or expired." error. From some PHP debugging, I think it has something to ...
1
vote
0answers
4 views

Mongo 2.6.9 process stopping, no error logs

I have a Mongo 2.6.9 process running on a Linux SMP instance. Here's uname -a with the server name redacted: Linux xxx.xxxx.com 3.13.0-042stab085.20 #1 SMP Sun Jul 20 13:27:24 MSK 2014 x86_64 x86_64 ...
3
votes
1answer
31 views

does adding heaps of drives to a raid 0 increase performance?

does adding heaps of drives to a raid 0 increase performance? i know that two drives in a striped raid will usually be faster than a single drive but will i notice a difference in performance between ...
0
votes
0answers
9 views

HA Cluster with OpenVZ and DRBD

Like I mentioned in the title, I would like to create an HA Cluster using OpenVZ and DRBD. I found this tutorial ...
0
votes
0answers
4 views

How to get Mod_pagespeed to output compressed (gzip) css?

Ubuntu 14.04 Apache 2.4.7 php-FPM 5.5.9 Using latest stable Pagespeed Module for Apache (1.9.32.3-4448). I'm in the process of optimizing a WordPress website for speed (bandwidth and rendering). ...
1
vote
0answers
8 views

LDAP group of words (not names)

We use LDAP for authentication and organization of items, and we have the following structure (minus a couple top levels, of course): Clients Client1 client1Users (group of users, member is ...
1
vote
0answers
19 views

nginx - redirect https://subdomain.example.com to https://example.com

I want to redirect https://subdomain.example.com to https://example.com. Here's what I'm trying: server { listen 443 ssl; server_name subdomain.example.com; return 301 ...
0
votes
0answers
7 views

Rails app with nginx passenger: recv() failed (104: Connection reset by peer) while sending to client

I've searched both StackOverflow and ServerFault, but almost every Q/A is about "while reading response..." for the 104: Connection reset by peer, and not "while sending to client". This is what my ...
3
votes
1answer
24 views

How to mount an USB drive under VMWare ESXi 5.5?

I want to mount an USB drive to VMWare ESXi 5.5 host. The USB drive is visible with lsusb : Bus 01 Device 03: ID 154b:0095 PNY But not under /vmfs. Under /dev/disks/ I see many entries, but dunno ...
1
vote
2answers
20 views

Postfix spam abuse

I have a terrible problem, my joomla website is being abused to massively send spam. I have no clue on what is actually happening, but my postfix mail queue is constantly filled with thousands of spam ...
2
votes
1answer
23 views

How to count packets coming from outside using iptables? [duplicate]

If you don't give iptables a target, it simply counts how many bytes and packets match the rule. I'd like to count all packets that come from outside, i.e. don't match 10.0.0.0/8 and don't match ...
-1
votes
0answers
16 views

CentOS Postfix/Dovecot status deferred conversation with 127.0.0.1[127.0.0.1] timed out while receiving the initial server greeting

Linux Kernel: Linux 2.6.32-504.16.2.el6.i686 on i686 RAM: 6GB OS: CentOS 6.6 Postfix 2.6.6 Dovecot 2.0.9 Relay Host Verizon Stunnel through 127.0.0.1:2525 Webmin 1.750 Virtualmin 4.17.gpl Multiple ...
0
votes
1answer
19 views

Why are some requests not passed to the correct backend in nginx?

Why would going to https://robert.bob.com/norbert/ go to backend1 instead of backend2 with this configuration? server { server_name robert.bob.com; rewrite ^/(.*) https://robert.bob.com/$1 ...
0
votes
0answers
17 views

IPtables string module

I am running 2 Apache servers behind a load balancer. I do not have access to the load balancer as it's run by our hosting provider. I am tasked with maintaining a blacklist of IP addresses that have ...
1
vote
0answers
9 views

Django + gunicorn + nginx concurrent users on default configurations

I am currently setting up nginx+gunicorn to serve a django app that is going to be used by at most 60 users following THIS tutorial. The app is pretty basic, 6 django forms made out of 10 fields and ...
-5
votes
1answer
24 views

Hosting anonymous websites on the same VPS that hosts a non-anonymous site? [on hold]

I run several websites under my real name, on a DigitalOcean VPS. I also run several other websites anonymously, which are currently on shared hosting. I want to move them to my VPS, but the problem ...
0
votes
1answer
28 views

WAN IP Ranges and NAT

Let's say we have a router with a WAN IP assigned by DHCP: 1.1.1.1/255.255.255.255 The ISP subnet for it's lan interface is 82.5.167.161/255.255.255.248 My firewall behind this router is on WAN IP: ...
1
vote
0answers
11 views

get notification when systemd-monitored service enters failed state

I need to have network messages sent when a systemd service I have crashes or is hung (i.e., enters failed state; I monitor for hung by using WatchdogSec=). I noticed that newer systemd have ...
0
votes
0answers
10 views

How to get the launch date of Gigabyte or Asus motherboard? [on hold]

Intel provides the launch date of its CPUs and motherboards, among other products, clearly on their site... specifically the quarter in which it was launched. This gives an indication as to how recent ...
0
votes
0answers
7 views

CloudFlare + Nginx + ngx_http_realip_module

We are currently using ngx_http_realip_module to convert CF ip's back to the users'. It works well for the most part but some ips in our access.log are still from CF. Current config in http {}: ...
-1
votes
0answers
27 views

Should I use RAID6 or RAID10 for a home office NAS? [on hold]

I'm a photo- and videographer and I want to store my material on a NAS to have it available all the time. Currently I'm running a RAID1 with two 3TB WD Red disks in a Synology NAS. But they are full ...
-6
votes
0answers
24 views

How does google install linux on their servers [on hold]

How does google install linux on their servers Lets say google wanted to install 100 server in 5 mins,How would they do it?PXE is readily available software for network boot,But wanted to how would ...
1
vote
1answer
12 views

htpasswd: unable to update file

I am trying to add a new user to authenticate to Apache2 (httpd) through Active Directory. The user already exists and belongs to a domain. I am essentially following the instructions in this Apache ...
0
votes
0answers
7 views

Assigning a static IP to Hamachi VPN that's outside of DHCP range

I'm trying to assign a static IP outside of a DHCP range. The range is from xxx.xxx.20.5 to xxx.xxx.20.85. I was trying to set it to xxx.xxx.20.216 and I know Hamachi doesn't have an option that ...
0
votes
0answers
7 views

Nginx with proxy_protocol is not accpting requests from haproxy in TCP mode with send-proxy

I have haproxy and nginx. I want make this setup accept HTTPS connections and I want HTTPS request being decrypted on nignx, not haproxy. In haproxy I've created frontend and backend for HTTPS ...
-3
votes
0answers
16 views

Forbidden: You don't have permission to access / on this server, LAMP Server on Fedora 22 [on hold]

I have been installed LAMP server on Fedora 22 , but when i need access my server localhost/myapp/public , I see this erro Forbidden You don't have permission to access /myapp/public/ on this ...
2
votes
0answers
15 views

How to get mod_security to log all POST data?

I currently have a CentOS system that is successfully logging relevant mod_security actions to the audit log file. The following is my configuration: <IfModule mod_security2.c> SecRuleEngine ...
0
votes
0answers
28 views

DNS is only available locally [on hold]

I have recently moved from a managed webhost to an unmanaged dedi provider to have cheaper prices (due to non-management) as well as better resources, hosted at kimsufi.com with a domain hosted at ...
1
vote
1answer
15 views

Locked out from SSH, NetBoot can be useful?

I am operating on a Server that is on a datacenter. For security reasons I've disabled root access. So yesterday I was configuring a restricted access group on the server and accidentally put the only ...
0
votes
0answers
22 views

Windows RDS - speed up log-off

It takes 20-30 seconds for the logoff procedure to complete on our 2012R2 RDS server. This causes issues for our RemoteApp users. I'm curious if anyone out there has thoughts on how to speed up ...
0
votes
0answers
17 views

Secure LDAP replication over the Internet

I have a remote site in which I'll need to authenticate my users. I have my users in a LDAP db. Thus my idea is to replicate the OpenLDAP server to the remote site to perform authentication locally ...
2
votes
1answer
24 views

OpenVPN and port forwarding

I have an issue with my Linux-based server regarding VPN and port forwarding. I am also a beginner is this area, so forgive me for any mistake. First, let me describe you the infrastructure. I have a ...
1
vote
0answers
5 views

Use Framed-IP-Address RADIUS attribute for IP allocation with DHCP on Windows Server 2012R2

I have configured a DHCP server on Windows Server with an NPS Policy, connected to a FreeRADIUS2 server running on pfSense. Authentication is based on MAC address. If MAC address is not present in ...
0
votes
1answer
16 views

OpenVPN limit monthly transfer

I want to limit clients with my OpenVPN to about 5gb/month,then autodisconect them until the next 1st. Is there an easy way to do this with Openvpn?
0
votes
1answer
6 views

OpenLdap error: Your attempt to add uidNumber (2276) to <cn …> is NOT allowed. That attribute/value belongs to another entry

I'm using OpenLDAP. The management interface is phpLDAPadmin. Whilst this has made things easy, it also means I've not been exposed to the internals. There is an existing entry using the uidNumber ...
1
vote
1answer
17 views

Remove www from subdomains in Apache

I have a domain domain.org I am adding SSL, unforunately a lot of subdomain where created as "www.subdomain" and it is way more expensive to create certificate to multiple 3 level subdomains. Is it ...
0
votes
0answers
13 views

Why does VNC viewer on Mac Book Pro report RFB protocol error connecting to AWS over L2TP?

There is a small group of us working on Amazon Web Services (AWS), we use mac books as our desktop machines and VNC into servers running on AWS. The problem started when we upgraded our VPN from PPTP ...
1
vote
0answers
5 views

Trouble configuring Opscenter (5.1.1) Email alerts

I was wondering if anyone could assist me in figuring out why my opscenter email alerts aren't working. My environment is docker running in native network mode with opscenter in a container. ...
0
votes
0answers
17 views

Exchange 2010 - Moderate Distribution Lists / Transport Rules

I have a moderated list 'All Staff' which users can bypass moderation on by sending to each individual branch lists. Is there a way to prevent this? I do not want to moderate each individual branch ...
-1
votes
0answers
27 views

Create a SQL Server login for desktop app users

I am in need of help setting up a SQL user and login for anyone trying to connect to the app (read/write to the database) from any windows login on our company DOMAIN. I'm trying to make my desktop ...
0
votes
1answer
25 views

Filter getent passwd output with SSSD

I am using ldap_access_filter in sssd.conf in order to limit access to users that are in a specific ldap group. However, when I do a "getent passwd" I still get a full list of the ldap users. How can ...

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