0
votes
0answers
11 views

Inconsistent DNS resolution behavior (dns_probe_finished_nxdomain)

I have a LAN with a windows server 2012 DC configured with DNS and DHCP. On occasion, clients will receive a dns_probe_finished_nxdomain error when browsing the web. This is not a consistent problem. ...
0
votes
0answers
9 views

Can't receive mails from Gmail

A few days ago Gmail suddenly decided to stop sending mails to my mailserver. I am using Postfix and Dovecot with an paid SSL Certificate running on Debian 7 with everything updated. My mail.log ...
0
votes
0answers
2 views

Hmailserver | Viewing email logs

I currently am using hmailserver on my windows 2012 server for SMTP and IMAP. I wish to learn one very simple information. I have noticed that alot of email is being sent that I am unaware of. I ...
0
votes
0answers
2 views

how to get top utilization process by mail using monit

I would like to configure monit tool If CPU usage > 10% then send top utilization process list by mail. how to configure with monitrc file. do the needful
0
votes
0answers
2 views

Upgrading Windows Server 2012 to Windows Server 2012R2 faild on Xeon/Supermicro machine

I have a server with the following CPU and MB: It is currently running Windows Server 2012 just fine. Any attemp to upgrade it to Server 2012R2 fail with blue screen. Earlier we've attepted to ...
0
votes
1answer
13 views

Optimize SSD storage on Centos 6.6 - KVM

I have a Dell R610 with hardware: H700 raid card 4xMicron MX100 512GB -> configured raid 10 I have installed Centos 6.6 on this server and configured: KVM virtualization Volume Group for raid 10 ...
0
votes
0answers
4 views

Amazon VPC NAT performance problems

I have a set of servers inside an Amazon VPC, whose job is to get image files from S3 and process them. The S3 downloads would frequently stall, sometimes for over 2 minutes, but all would eventually ...
1
vote
1answer
20 views

SSH from Windows to Jump Server to MySQL

We have a MySQL instance running on a Linux machine and had to open a tunnel to access the server. This worked fine until admin decided to add a steppingstone / jump server. Now i can't seem to ...
-1
votes
0answers
7 views

client crash after installing libpam-ldap and nscd and getting usrers authenticated by ldapserver

I configured a client machine for authentication through LDAP server. Using this tutorial. I was able to authenticate an LDAP user from the server. But when I restarted the machine, it failed to ...
2
votes
1answer
18 views

Perfect Forward Secrecy (PFS) for mail servers

Perfect Forward Secrecy is an important enhancement to SSL/TLS communications, helping prevent captured SSL traffic from being decrypted even if the attacker has the private key. It's easy enough to ...
-2
votes
0answers
10 views

Hmailserver | Windows Mail Server query

I currently have a windows 2012 server running hmailserver for SMTP and IMAP. I can send and receive emails fine without a problem. A while ago I noticed that I was getting spam emails sent using my ...
9
votes
2answers
856 views

SSH MOTD per user

I want to display banner (welcome message) for SSH users with a specific welcome message for each user.
-1
votes
0answers
7 views

Apache rewrite rule for image [duplicate]

Can someone tell me how to write a rewrite rule for apache which makes http://web.site.com/folder/--411.jpg go to http://web.site.com/folder/logo.jpg So if the file at the end is JPG/PNG/GIF and ...
0
votes
0answers
4 views

phpMyAdmin (on external webserver) error #1045 on all our computers on our network

We've gotten an issue with phpMyAdmin when logging in. phpMyAdmin is located on our web service providers server. And when we try to log in, we get the error #1045 Can not log in to the MySQL server ...
0
votes
1answer
24 views

nginx : setting wordpress and gitlab, can activate only one of them at a time

I'm trying to set up a website (website.com) on an Ubuntu 14.04 machine. When '/etc/nginx/sites-available/wordpress' is present, I can run the gitlab server on website.com/gitlab (as intended) When ...
1
vote
1answer
2k views

Mysql - innoDb - is in the future! Current system log sequence number

I have this error in my syslog. I restored an older dump to solve this problem, after some reading. Now The errors in syslog are far less than before. But still a few times an hour I get Sep 1 ...
2
votes
1answer
1k views

Which JMX statistics to watch out for in Catalina/Tomcat?

I have configured OpenNMS to collect all kinds of numeric data coming out of tomcat7 jmx. There are a lot of things. I am interested in monitoring this tomcat instance so that I can avoid down time ...
0
votes
0answers
2 views

Windows Event Collector Load Balancing to multiple Collectors

My scenario: I want several Windows servers to forward Events either to Collector A or to Collector B and so on. What I tried: Set the GPO: Computer Settings - Policies- Administrative Templates - ...
0
votes
0answers
6 views

Avoid accessing a webpage with redirection in Nginx

What I need is to configure Nginx in front an application. The app has 3 sections, the first is the login page, then after login the user is served with "page2" but what we need is to avoid this ...
0
votes
0answers
3 views

MySQL unable to repair, dump, upgrade table (simply crashes)

I need to backup one of my databases from MySQL (Running MariaDB). The issue is that aside from all of my other databases that backup perfectly fine, this database has issues backing up and crashes ...
-1
votes
0answers
11 views

connection via ip fails but can be established using hostname

I cannot reach the Server using the IP-Adress, but if I use the FQDN or the hostname itself, the connection can be established. The connection should be established by the ...
0
votes
0answers
3 views

Conditions for “mds cluster is degraded”

I see into Ceph and after running command $ ceph status I meet text "mds cluster is degraded". I try to seek it at official Ceph docs, but nothing find. If I understand correctly, MDS needed for ...
0
votes
1answer
18 views

TCP - TAP performance

Linux. Is there a performance loss from using a tap device vs a hardware one like eth0 ? The goal is to create a user space tcp/ip stack and avoid the kernel as much as possible. I would like to be ...
0
votes
0answers
6 views

Distributing files to remote windows clients [on hold]

It seemed to be a very simple requirements. I need to distribute files from a central location to remote windows machines. The clients should be in sync with the server and should apply any change at ...
0
votes
2answers
39 views

Implementing TCP Sticky Sessions With HAProxy to Handle SSL Pass-through Traffic

How can we implement session stickiness in HAProxy when SSL must terminate on the backend servers? We need the stickiness because backends cannot share sessions. I have this config which results in a ...
0
votes
2answers
99 views

Forbidden (403), when accessing server-status on apache 2.2.22

I'm getting Forbidden error when trying to access www.website.com/server-status mod_status is enabled The VirtualHost: <VirtualHost *:8080> ServerName website.com ServerAlias ...
0
votes
0answers
9 views

mounting logical volume attached to vm while vm is running

i am experimenting lvm2 and qemu-kvm. and I want to share and ask some questions. at the end of there is appendix what i am doing. a logical volume on host is attached on guest host (vm) as vda. this ...
3
votes
0answers
21 views

Three separate VMs for webserver, database, and data crunching. Good idea?

I'm writing some quantitative marketing research software, and have a bit of a "blind leading blind" situation at work. I'm not really used to writing web apps or configuring servers; most of the ...
39
votes
6answers
54k views

Should I use tap or tun for openvpn?

What are the differences between using dev tap and dev tun for openvpn? I know the different modes cannot inter-operate. What is the technical differences, other then just layer 2 vs 3 operation. ...
1
vote
1answer
82 views

Strange access requests

In my access logs i have some requests like so: [18/Dec/2014:10:07:51 +0300] "GET /favicon.ico HTTP/1.1" 301 184 "-" "Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20110814 Firefox/6.0 Google ...
0
votes
0answers
6 views

Windows SBS 2008 - Registering remote VPN users in DNS

Our server runs Windows SBS 2008 and we're utilising Routing and Remote Access for VPN connectivity. Some of our remote VPN users have workstations which are attached to our domain. When these users ...
3
votes
1answer
2k views

Connect to SVN repository with Netbeans using SVN+SSH

I am trying to connect to a SVN server in order to import my project into it with svn+ssh authentication method. I am using the NetBeans IDE (6.8) with subversion plugin installed on Windows XP SP2. I ...
2
votes
1answer
821 views

How to show the “Home” folder for SSRS 2008 in SQL Management Studio

I just installed SSRS 2008 on a development server and when I connect to it with SQL Management Studio I do not have all of the items in Object Explorer that I had with our SSRS 2005 installation. For ...
0
votes
0answers
5 views

UDP Traffic from outside to docker container is dropped after container restart

following situation: i have a hardware box with Ubuntu 14.04LTS as host for docker 1.4 I'm running an ELK stack in several containers. Curenntly the logstash container is exposing only port 514 to ...
1
vote
1answer
17 views

What is the difference between rMB_nor/s, rMB_dir/s, and rMB_svr/s in iostat?

I'm trying to interpret the results of running the following command iostat -mnhyc It produces the following Filesystem: rMB_nor/s wMB_nor/s rMB_dir/s wMB_dir/s rMB_svr/s ...
0
votes
0answers
21 views

Finding and renaming directories by regex in linux

I'm trying to match (and later rename) directory names like: A0000 (SOME-NAME) A0001 (SOME-OTHER-NAME) A0001 (ANOTHER-NAME) I'm testing to see if I match any using the find command but doesn't seem ...
1
vote
0answers
29 views

FreeRadius Accounting not working, bad passwords not cheked

I'm trying to configure a captive portal using a router with OpenWRT+ChilliSpot and an external server with Freeradius and a Web Server. ChilliSpot 1.3.0 My issue right now is that the freeradius ...
-1
votes
1answer
10 views

How do I increase the swap size on a xen guest machine using xm?

I'm attempting to increase the amount of swap on a xen guest machine. At first I thought it'd be similar to increasing the hard drive space, which I do like this: cd /srv/xen/domains/$host/ xm ...
1
vote
2answers
1k views

Nginx - What is does the nodelay option do when limiting requests?

With the nginx HttpLimitReq module requests can be limited by IP. However, I'm not understanding what the "nodelay" option does. If the excess requests within the limit burst delay are not ...
1
vote
1answer
988 views

tap interfaces always disabled in linux bridge

I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this purpose I do: #Create the virtual interfaces tunctl -t tap0 tunctl -t tap1 ifconfig ...
2
votes
1answer
1k views

Linux- Permission denied?

I'm installing Neo4j server as a linux service, but when I install it, I get the following message: /sbin/insserv: Permission denied What is this? What should I do? I'm running everything with ...
0
votes
0answers
11 views

Node.js app dying when over 300 people on it at the same time

I have a node.js app running on a Digital Ocean MEAN droplet. When over 300 people are accessing it at the same time it just hangs. At first I noticed that it was opening over 1000 files at once. I ...
0
votes
0answers
15 views

500 Internal Server Error Nginx on HTTP POST

I need your kind assistance to solve this problem after a long research. my script is unable to send post request it's getting 500 internal server error (nginx). This error occurs while $_POST ...
1
vote
0answers
26 views

adding mongodb authentication breaks connecting via nodejs

I needed to have external access to my mongodb database, so I have removed the bind_ip from the mongod.conf file, and turned on auth. I then added a root user that can access everything, and tried to ...
-1
votes
0answers
8 views

Combining and minifying CSS/JS files

I asked this on Stack Overflow, but it was voted to be closed, but I'm going to ask it here: I'm writing a Chrome extension for which I remotely load CSS and JavaScript files. I'm looking for a tool ...
0
votes
1answer
47 views

Postfix forward incoming emails to mailin

I've setup the smtp server using postfix with dovecot on mail.example.com server running on port 25. And then I've also setup another smtp server using mailin (http://mailin.io) on mail.example.com ...
0
votes
2answers
818 views

APT FATAL -> Failed to fork

I saw a lot of questions regarding this, but mine seems a little different. Here's what I receive: /etc/cron.weekly/apt-xapian-index: FATAL -> Failed to fork. run-parts: ...
4
votes
1answer
2k views

P2V - Cold Clone ISO

I need to cold clone a physical box in a VMWare environment. What are people using for this these days? My preference is for VMWare's vConverter ISO, but it appears that this was discontinued. It's ...
0
votes
0answers
10 views

OpsWorks nginx namespace conflict

I want to deploy one of my cookbooks, nginx-passenger, to opsworks. I've tested the cookbooks locally already using testkitchen and all the recipes and tests passed successfully. However, when using ...
0
votes
1answer
12 views

Auto-upgrading similar VM guest OSes

Is it possible to handle automatic upgrades of VM guests which differ only in terms of deployed projects? I'm asking about either general or specific technologies which facilitate this. In brief, I ...

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