0
votes
0answers
11 views

Establishing TCP Connections by hping3

when a client sends 10 TCP SYN packets by hping3(not spoofing), server responds and sends 10 TCP SYN+ACK packets. now client should answer to server and Establish the connection by sending 10 ACK ...
-1
votes
0answers
20 views

named.service start operation timed out

Problem starting my Restarting DNS Server Waiting for “named” to start ……Job for named.service failed because a timeout was exceeded. See "systemctl status named.service" and "journalctl -xe" for ...
1
vote
0answers
7 views

What's the network route for google cloud internal network communication via external ips

I am using Google Cloud load balancer for balancing internal servers and blocking outside access via firewall rules as specified in the official docs. I am just curious from a network performance ...
0
votes
0answers
12 views

VPN problems windows 2008 server

I have a windows 2008 server running which is configured as a RAS server. Client can connect without a problem. First issue is that the server itself looses internet connection. The other problem I ...
0
votes
1answer
15 views

Dovecot, Courier, Postfix Differences

[This question might be against SO guidelines - too vague - too subjective. I have however failed to find an answer] Like this: Dovecot vs Courier vs Cyrus What is the difference between Postfix, ...
0
votes
0answers
14 views

Fail2ban on CentOS, dovecot filters regex not matching logs

I'm starring at this regex for some time now and it seems perfectly matching lines from my log files but I can't get it to work, not even with modifications. I suspect the problem might be with the ...
-1
votes
2answers
14 views

bandwidth control solution , software/hardware

so now i am confused , i have been reading since several days now , with no clear solution poping in mind .. the company that i work for , is going to replace 2 ADSL connections by one fiber optic ...
-1
votes
0answers
15 views

Windows host file stopped working? [migrated]

I have this lines in the hosts file 192.168.99.100 www.testlocal.com and when i try to access them from the chrome it gives me this error This site can’t be reached testlocal.com’s server ...
0
votes
0answers
14 views

SSL related Exception while Connecting with Digitalocean Droplet

I want to connect with DigitalOcean Droplet through SSH but Exception Pops up when I try to connect through SSH without Initial Password reset. In DigitalOcean, We have to Reset Password just after ...
0
votes
0answers
15 views

Having different two different public IPs or Xen guests

I'm using XenServer and CentOS. I have successfully configured two Windows Server guests and they both work properly. On the host machine, I have xenbr0, xenbr0:0 and xenbr0:1 (for two different IP ...
0
votes
2answers
39 views

Subdomain redirection, URL Masking

My issue is simple but I can't seem to find the solution. I have a domain www.domain.com that has subdomains. www.domain.com 's document root is /home/domain/public_html Subdomains (excluding www) ...
0
votes
0answers
23 views

LDAP modify doesn't change anything

Got an issue with Active Directory LDAP and setting passwords. I'm connected through the LDAPS protocol to my AD server, and binding is successful. When attempting to set a user password, no error is ...
-1
votes
0answers
24 views

Eraze Laptop HDD without admin access [on hold]

I bought a laptop with windows 10 I want to resell. It is encrypted with bitlocker and I know the bitlocker password, but unfortunately the accout I've been given is not system admin - it is admin but ...
1
vote
0answers
27 views

Why could the TLS handshake fail?

My OpenVPN client (Windows 10) is in a corporate LAN and connects to a server on Internet (Ubuntu). The setup used to work but stopped some time ago (see below for the small infrastructure change, the ...
0
votes
2answers
20 views

Testing Zimbra email routing

I am an experienced Exim user and just recently testing Zimbra Open Source, and I am loving it already. However, I am used to this command whenever I wanted to test email routing in the email server, ...
0
votes
1answer
13 views

Masking URL, Subdomain redirection

We have hosted a Java web application for www.domain.com on Apache & Tomcat. I have two problems, as follows 1) Directory Index in Apache lists home.jsp ahead of redirect.jsp. For my domain.com ...
0
votes
0answers
7 views

Building PHP7.0 from sources deb fail: configure: error: GD build test failed

Try compiling php7.0 from source debian. GD librar¡ia update to testing after first error. apt-get install libgd-dev/testing mkdir /src/debian; cd /src/debian apt-get source php7.0/testing apt-get ...
0
votes
1answer
13 views

Apache Aliased Directory doesn't work for child directories of alias

I'm trying to run two different applications under user. Application 1: /home/user/public_html/app/public/ Application 2: /home/user/public_html/forum/ VirtualHost has the Server set to ...
0
votes
0answers
18 views

error AH01630 only from specific ip

some days ago an user report a specifical issue to access to our wordpress site stored in an apache2.4 running on Ubuntu 12.04 LTS. If he try to access from the office, obtain a 403 error and the ...
0
votes
2answers
27 views

What is this strange nginx running on 8088?

I recently made a nmap scan to my server, and I discovered that there was some strange instance of nginx running on port 8088. 8088/tcp open http nginx 1.0.11 | http-methods: |_ ...
3
votes
2answers
28 views

Create a directory under /var/run at boot

I had a daemon that needed its own dir in /var/run for its PID file with write permission granted to the daemon's user. I found I could create this dir with these commands: # mkdir /var/run/mydaemon ...
0
votes
0answers
32 views

Can't initialize VM's on HyperV Windows Server 2012

I'm really stuck with this and I can't understand why I sunddendly can't make ANY VM to start succesfully in my system. I had just one VM, and it was working perfectly, then for some reasons I booted ...
0
votes
0answers
17 views

How to I reconfigure grsecurity patch on Debian kernel

I installed the linux-image-4.4.0-1-grsec-amd64 on Jessie from the Debian package repo. Having issues with LXD and grsec Chroot restrictions, I went to make adjustments to /etc/sysctl.d/grsec.conf ...
0
votes
0answers
7 views

Rsync hard-links when modification times are different

I have a large remote directory A and local directory B that are nearly identical in content, though many of the modification times may have changed by copying files etc. I want to create a local ...
2
votes
1answer
24 views

Add vmtools to linux installer ISO

Is there a way to add vmware tools to a linux installer (debian or redhat)? Curious if I could create a linux ISO would already have vmtools installed. So when I boot the vm for the first time to the ...
0
votes
0answers
8 views

Roaming Issue with FreeRadius

I am using a FreeRadius Server (running on Centos 6.8) with CloudTrax (OpenMesh r5xx). When people try to roam between Access Points, they get logged off. Are there some settings in FreeRadius I ...
-2
votes
0answers
48 views

Create multiple username and UID in Linux using script [on hold]

In my environment I constantly have to attach an NFS server running on Linux. The Linux client system has user names created in it and they are in a sequential order. But in order to set the sharing ...
-1
votes
1answer
8 views

How to set up XenServer with OpenBSD?

I've worked with VirtualBox before, but am new to XenServer. I have XenServer 6.5 set up on a computer on my LAN. This computer has one NIC, with IP 192.168.1.1 . Do I need more than one NIC? I can ...
-1
votes
0answers
11 views

Enabling pdflib option without reinstalling php

I have installed PHP version 5.3.5 in a RHEL 5.10 server. I need pdflib support to be compiled along with PHP, But while compiling I am getting the below error. I understand that current configure ...
0
votes
1answer
24 views

PHP processes consume memory and cause server to crash

I'm using CentOS 6.8 on a VMware based cloud system, with WHM/cPanel 54. I'm hosting numerous PHP based sites and whenever there is a spike in traffic, the server will crash and requires manual ...
1
vote
1answer
12 views

Why is my awk sub command failing?

When I run df -hl | grep '/dev/disk1' | awk '{sub(/%/, \"\");print $5}' I'm getting the following error: awk: syntax error at source line 1 context is {sub(/%/, >>> \ <<< ...
0
votes
0answers
17 views

Magento2 Varnish + Nginx (SSL not caching)

I move the question on serverfault instead of Magento (https://magento.stackexchange.com/questions/117075/m2-varnish-nginx-ssl-not-caching) since I consider this topic more on server side ...
0
votes
0answers
8 views

How to use another remote IP address with putty socks5 tunnel [on hold]

I have multiple IP addresses on my server, is there a possibility to use another remote IP when using the socks tunnel with putty? jope you guys know what i mean. this setup thing in putty
1
vote
1answer
25 views

dcpromo /forceremoval as a file server

I'm working on a customers infrastructure where most of the DCs were not replicating with each other. I managed to bring up another two DC's, bring them to the domain and switch over the FSMO roles. ...
-2
votes
0answers
17 views

How to make a Distributed Linux Web Server? [on hold]

Recently, I am trying to construct a distributed linux (ubuntu) web server that can let me easily enhance the ability of serving more requests by adding new computers into the distributed system. It ...
0
votes
1answer
7 views

puppet4 .erb nilClass on .each

erb $names = ['foo','boo','wee','haa'] <% @names.each do |name| %> Hello <%= name %> he is here <% end %> config.pp file {'/tmp/tester': ensure=>'present', ...
0
votes
0answers
13 views

Debian Cyrus SASL LDAP Auth fails

I am in the middle of an emergency server transfer from a server I did not setup to a new piece of hardware. I am running the newest Debian with Postfix and Cyrus. I have copied over the majority of ...
0
votes
0answers
4 views

High availability IIS web application, via google cloud storage bucket mounted to windows instance

I am looking for a high availability ASP.NET application via Google Compute Engine. I read over the high availability docs to look at the basic architecture. All is fine with the grouping of compute ...
1
vote
2answers
22 views

How do I change reverse DNS on Google Cloud Compute?

How do I change reverse DNS on Google Cloud Compute? I want to add reverse DNS to Google Cloud Compute and can't figure out howto do it. I want to map 11.97.196.104.bc.googleusercontent.com to ...
0
votes
0answers
7 views

Need MX record location posibilities for dynamic web hosting setup [on hold]

Can I add an MX record on a web only host(my home server), which is behind a dynamic dns service (sole nameserver for domain points to host123.no-ip.info), to redirect all emails to the shared host, ...
-1
votes
0answers
16 views

Trouble Displaying static HTML website [on hold]

I am deploying a static HTML website and I have a few questions/issues: I have an Ubuntu server right now. Would I also need something like Apache on the Ubuntu server, or is putting my website code ...
-3
votes
0answers
26 views

Easiest / Cheapest Path to Replace Windows with Linux [on hold]

What is the easiest / cheapest way to replace my Windows domain & servers with a Linux environment? Our servers are basically used for authentication and file storage. We have 45 workstations ...
1
vote
1answer
31 views

Nginx HTTP not working - downloads a file called “download”

if I visit my nginx site with https it is working, but with http it is downloading a file called "download" (no extension whatsoever), 57 bytes and opening it with notepad etc just shows gibberish ...
0
votes
1answer
12 views

Configure sendmail to relay on an smtp server

I'm using an ubuntu distribution. And I installed the sendmail with apt, and edited the /etc/mail/sendmail.mc, and added the lines define(`SMART_HOST', `ssl0.ovh.net') FEATURE(`authinfo') before ...
5
votes
3answers
80 views

If RAID5/6 are risky due to URE, are full backup/restore schemes at risk too?

As I understand it, you have a high chance of encountering an URE during a rebuild due to having to read a large amount of data to perform the task. Does this problem also affect backup and restore ...
0
votes
0answers
19 views

Connect to Redis on Azure VM [duplicate]

I have a new Windows 10 Azure VM (classic). I've installed Redis and can ping it locally using the redis-cli.exe API. 127.0.0.1:6379> ping PONG How do I ping this from my local machine? Do I ...
-1
votes
0answers
3 views

Virtualbox VM bridged NIC to host Loopback-NIC serve Internet [migrated]

I have a Virtualbox VM with a NIC in bridge mode to the host machine Loopback Interface... I have in the VM the IP 192.168.0.12/24 I Have in the host machine 192.168.0.11/24 (assigned to Loopback ...
0
votes
1answer
20 views

Captive Portal for devices behind NAT: Is it possible?

A related question: Do all captive portal solutions work the same way? (cookie, vs MAC address, vs other?) I have been reading about Captive Portal at Wikipedia. This part generates a question: ...
1
vote
0answers
19 views

Connecting to the PSTN from Voip [on hold]

I have 60+ computers running Skype and to reduce costs I have been looking into alternative VoIP technologies. I understand that I can get free software to put on the computers to receive VoIP calls ...
-1
votes
0answers
3 views

Cannot connect from Windows 10 Hyper-V Manager to another Windows 10 Hyper-V instance [migrated]

I got a Windows 10 Workstation at home where I installed Hyper-V and run a Windows 10 VM inside it. Then I got a Notebook where Windows 10 is installed and I want to connect and administrate the ...

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