4
votes
0answers
81 views

Improve SSL Performance with Nginx

We have Nginx in the front of our system and we Proxy to Apache at the back. We use SSL/TLS for our connection. Question: Is Nginx the best option to terminate SSL/TLS connections in terms of ...
4
votes
0answers
142 views

Cannot set DSCP on Windows 10 Pro via group policy

Setting 'policy based QoS' on Windows 10 does not apply the DSCP value to outgoing traffic. I want to be able to set the value of DSCP traffic for certain processes. Using gpedit.msc group policy ...
4
votes
0answers
56 views

SELinux: manually changing files in /etc/selinux/targeted/contexts/files/

I'm setting up a CentOS 7 server in which the /home directory has to be located on another partition and then mounted with bind-mount. So: /data/homes should be bind-mounted to /home. The problem is ...
4
votes
0answers
133 views

Which permissions should I set to dhparam.pem?

I am generating Diffie-Hellman parameters for the ssl_dhparam directive in the SSL configuration of nginx. The file dhparam.pem is created with the command openssl dhparam 2048 -check -out dhparam....
4
votes
0answers
55 views

How to allow a Windows Client to follow a Remote Symbolic Link Transparently

Here's the scenario. Client - Windows 7 workstation ServerA - Windows 2008 file server ServerB - Windows 2008 file server On ServerA: mklink /D c:\Share\Link \\ServerB\Share\Dest That works ...
4
votes
0answers
50 views

Windows 10 System Crash Then Overwrites profile

So this has happened to me 3 times now. We have about 25 computers running windows 10 enterprise. All domain joined, all using roaming profiles (fortunately). And in the last 2 months ive had this ...
4
votes
0answers
74 views

Windows Server Clear on Logout Policy

I was wondering is it possible to create a policy on Windows Server 2008 R2 or 2012 that will clear everything (all files from desktop, documents, etc) once the user has logged out of the system? It ...
4
votes
0answers
60 views

Strange values in linux system load

I am trying to understand system load on one linux server: $uptime 15:01:45 up 52 days, 19:48, 1 user, load average: 0.63, 1.76, 4.81 Loads are always 1 minute < 5 minutes < 15 minutes. ...
4
votes
0answers
109 views

DFS: File randomly missing?

We have a DFS installed on two different servers. Running health reports finds no errors and generally everything seems OK, but: On some computers, files will be saved on a DFS folder randomly, ...
4
votes
0answers
88 views

How do companies handle the need for different Java requirements on the same user?

In our company, we use GPOs to push software updates such as Java updates. We have about 150 users in different offices located in different countries, all using Windows 7. We have a few office-...
4
votes
0answers
134 views

Exchange 2013 Internal and External URLs with multiple servers and certificates

I'm building a lab with two Exchange 2013 Servers with different internal names and only one external URL, the naming schema is something like this: Internal Names: exchange1.local.example.com ...
4
votes
0answers
48 views

What are sensible semaphore numbers?

What are semaphores and how are they caused? has a fairly good explanation of what semaphores are, but I'm not sure what my configuration should be. I recently ran into the same problem as that ...
4
votes
0answers
231 views

Why does Windows Server 2012 R2 Standard edition show only 20% of my available memory?

Fellow Techies-- I have a LENOVO x3650 X6/x64 based Windows server with 4 18 cores/36 logical processors-- with installed physical memory (ram) @1.5 TB, total virtual memory @1.5 TB. However, I am ...
4
votes
0answers
287 views

Using get-wsuscomputer with -ComputerUpdateStatus

I have WSUS installed on a Server 2012R2 box. I am trying to use the Get-WsusComputer powershell command to get a list of computers with pending or failed updates. The documentation for the command ...
4
votes
0answers
93 views

`at` jobs running tens of minutes later than expected

I have an issue with at jobs being queued successfully and running successfully, but sometimes tens of minutes after they are scheduled to run. I confirmed that atd is running: me@hostname:~$ ps -ef ...
4
votes
0answers
63 views

How can I provide services to an internal air-gapped extranet

Background - "Extranet" We have about a dozen users that are on what I would call an Extranet. It is an air-gapped LAN that is physically in the same location as our primary LAN. We share the ...
4
votes
0answers
329 views

Node.js Server with PM2 Crashing with error ENOMEM - but no memory leak

I have an EC2 instance running a node.js server (Express based). After deploying in a new environment, my service had started crashing almost instantly with spawn ENOMEM Errors like this one: ...
4
votes
0answers
91 views

udev rule not applied on boot for mounted disk

I'm trying to persist a readahead rule on a mounted drive to use with mongodb. The mount is persisted using /etc/fstab and that works as expected. I have added a udev rule ACTION=="add", KERNEL=="...
4
votes
0answers
245 views

How do I get an aggregate of all the stats from all uWSGI vassals using uwsgitop?

TL;DR Can anyone tell me how I may get uwsgitop to monitor all of my vassals in my emperor-vassal setup in one shot? I have an emperor-vassal setup for my uWSGI server, and I need to monitor all ...
4
votes
0answers
207 views

How do I fix a non-starting “Microsoft Key Distribution Service”? (not to be confused with Kerberos KDS)

The Microsoft Key Distribution Service is not starting on my DC (kdssvc.dll) and when I look at the event log under Microsoft\Kdssvc, I see the events: Event ID 4001 Group Key Distribution ...
4
votes
0answers
57 views

Breakdown Windows Network IO by network adapter and by process

What I'm trying to do is breakdown the Network IO by network adapter and by Process. The goal is to identify which processes are generating the most IO on a certain network adapter. Resource Monitor ...
4
votes
0answers
255 views

HP MSA P2000 G3 Disk Scrubbing performance?

I have a HP P2000 G3 array with two 10Gbit iSCSI controllers in it that presents storage to my virtualisation cluster. It is soon to be expanded with two D2700 shelves each loaded with 25 10k RPM ...
4
votes
0answers
91 views

windows10 setup.exe lost support for /m?

setup.exe (the program which kicks off the windows installer) as distributed in the windows 10 general release no longer supports the /m option -- this option let you specify a directory of content to ...
4
votes
0answers
266 views

Signout with ADFS3 with SAML

I have implemented SSO using ADFS3. I have a logout button for sign out and it’s working fine with my ws-federation passive endpoints. On logout I redirect user to logout.aspx page and there I have ...
4
votes
0answers
359 views

Apache Header Module Loaded but can't set headers in htaccess

I have Apache 2.2.29 (unix) setup and running on my new dev machine (mac). I am trying to set CORS headers for an API project - something that I have done many times. The htaccess file for the ...
4
votes
0answers
401 views

Why can DNS server not resolve any domain ending in .io?

I have two windows domain controllers. 10.10.10.10 Primary ( win 2008 r2 ) 10.10.10.20 Replica ( win 2012 r2 ) The second one is configured as a replica of the first. About once per week, the ...
4
votes
0answers
108 views

Blue-green deployment for Jenkins itself

When I tinker with my live Jenkins instance, I risk down time. Thus I want to run blue and green Jenkins master instances. This way, I can work on one while the other is live and stable. As ...
4
votes
0answers
268 views

some IPs within a subnet not reachable

I'm running 3 Debian-Servers, each with its own IPMI. All IPs are within the same subnet with the same gateway. The problem is, that each server can ping its own IPMI but not the IPMI of the other 2 ...
4
votes
0answers
93 views

all dfs replication groups failing at the same time

We have 2 pairs of fileshare servers. All servers are virtual Windows 2008 R2. Each pair is replicating over a WAN. Occasionally all DFS replication groups fail at the same time. I could not find any ...
4
votes
0answers
119 views

What would be involved in moving a site like stackoverflow to https?

I've seen a lot of requests in the SO Meta asking for StackOverflow to be moved over completely to https. I've never run a site as large as Stack Overflow, so enabling SSL/TLS has always just meant ...
4
votes
0answers
125 views

Cisco ASA failback to preferred IPsec peer

I just configured my Cisco ASA 5505 to failover to a backup internet line when the main outside interface is down. This all works fine. Also, I have a site-to-site IPSEC VPN tunnel from this ISP-...
4
votes
0answers
461 views

VLAN ID over DHCP for Management Interface of Fortinet FortiAP

When configuring the FortiAP device it's desirable to configure the VLAN ID for the tagged management network. Accordingly to the manual it's possible to do so by "telnetting" to the FortiAP device ...
4
votes
0answers
285 views

Samba authentication and LDAP

I have an OpenLDAP server that I use for authentication and authorization for various services. All users are of object type inetOrgPerson and my groups are groupOfNames. Now I want to configure ...
4
votes
0answers
81 views

How to clone the OS disk and keep both disks plugged in?

Here's the situation: A Windows RAID 1 has partially failed. The broken disk was replaced with a new disk. The old two disks do not have Advanced Format (bigger sector size). The new replacement disk ...
4
votes
0answers
376 views

Windows Authentication to a Remote Server within an Intranet Environment

I have several servers (all on the same DC) within an Intranet environment at my company. For simplicity, I'll focus my question on the IIS and SQL Servers. I have an IIS 7.5 web server and a remote ...
4
votes
0answers
307 views

Get-Process not working against remote Windows 7 clients

I have been trying to run Microsoft's GetNetworkStatistics script against remote computers to enable us to track what processes are using bandwidth along with other tools. I am unable to run the ...
4
votes
0answers
264 views

Samba4 internal DNS and isc-dhcp zone update

Could anybody explain, how to solve this problem with internal samba4 DNS and dynamic zone updates from isc-dhcp? In the logs I have: dhcpd: Unable to add reverse map from 170.5.168.192.in-addr....
4
votes
0answers
2k views

Disable SSLv3 on Windows Server 2012

I have disabled the SSLv3 on Windows 2012 sever using the following method: http://blog.brankovucinec.com/2014/11/13/disable-the-sslv3-protocol-on-microsoft-windows-servers/ Around the same thing is ...
4
votes
0answers
2k views

opendkim fail | bad RSA signature | verification failed unprotected key

I have fully manageable VPS running Ubuntu 14.04 which hosts websites for several domains. Recently I have tried to add DKIM signatures to avoid spam filters. I've followed ubuntu-postfix-dkim ...
4
votes
0answers
856 views

mod_wsgi End of script output before headers

I have a problem with my web application. Sometimes when people upload an image (seems to happen with large image only), I have mod_wsgi who crash with this message : End of script output before ...
4
votes
0answers
226 views

Elasticsearch dies when Logstash attempts to write data

I've got a Raspberry Pi 2 (latest Raspbian as of Apr 2015) setup that last week was running both ElasticSearch and Logstash on a test network (not a straightforward setup, but it was stable for over a ...
4
votes
0answers
947 views

Unprivileged lxc container as root

I have successfully been able to run privileged lxc containers (as root). My system: uname -a Linux ruby-dev 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/...
4
votes
0answers
514 views

Amazon RDS Instance slowly losing free diskspace

A while back the server running my instance had 20GB of EBS storage. It then started getting disk storage errors, so I increased it to 40GB. Then again, storage missing errors so I increased again to ...
4
votes
0answers
135 views

Getting journald to send email on certain events

I found these solutions for syslogd that send emails on certain events like local0.crit or local1.err How can I make syslogd email certain log messages to me? http://www.johnandcailin.com/blog/john/...
4
votes
0answers
88 views

Blank sent to default printer on RDP Win2008R2 with mapped printing

I’ve got an issue with a terminal server running Win2008R2 Enterprise SP1. My users have remote print mapping enabled (as it is imperative for their day-to-day duties). When they log in, RDP will ...
4
votes
0answers
395 views

start nginx despite missing upstream

I like to run nginx as a local proxy server, serving stale cache files if the upstream server is unavailable. This works well, except the local machine is restarted, while the internet connection ...
4
votes
0answers
160 views

Heroku and socket.io out of memory

I have a setup with websockets on heroku and every now and then i get a flurry of messages like this: 06:24.591694+00:00 heroku router - - at=error code=H15 desc="Idle connection" method=GET path="/...
4
votes
0answers
1k views

Server 2012 Windows Update not working

We have a windows server 2012 box that is hosted remotely. I've been trying to install a security patch and the windows update component appears to be corrupted. The error code i'm getting is ...
4
votes
0answers
258 views

IPSec bandwidth between two Pfsense hosts has predictable, variable bandwidth

I have a IPSec tunnel between two Pfsense machines. Both machines are connected to a 100mbps symmetrical connection. The latency between the two routers is ~70ms. I'm using AES-GCM-128 and SHA1, both ...
4
votes
0answers
167 views

Update SQL Service Pack Named Instance

I have an existing SQL 2008 R2 on SP3. Have another instance in use that is SQL 2008 R2 SP1 I need to update the named instance with sp1 to sp3 but i'm not getting any options. It tells me my version ...

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