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A server is a computer program or a machine that waits for requests from other machines or software (clients) and responds to them. This architecture is called the client–server model. The clients may run on the same computer or may connect to the server over a network. The purpose of a server is to share data or hardware and software resources among clients. Typical computing servers are database servers, file servers, mail servers, print servers, web servers, game servers, and application servers.

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After 30+ hours of research and trying different solutions I have found many solutions to each piece of this puzzle but can't quite get them to work together or figure out the best approach so I'm hoping you guys can help.

The goal: Use public IP from a remote server(Ubuntu) as a browser proxy. The kicker is that the server should pass all traffic through to a local machine which has a 4g modem internet connection to use its internet connection. We need to be able to assign fixed IP addresses/IP port combinations to these local modem/s to be used as undetectable browser proxies to make it appear that the browser client is logged in using the mobile internet connection.

I have seen multiple solutions to each part of this including the use of ssh tunnels, dynamic port forwarding/socks, remote port forwarding, squid proxy server/other proxy server software, iptables configs etc..

I have found this solution that I can get traffic to travel from anywhere to my local machine:

//1st terminal establishes connection/tunnel ssh -nN -R 8888:localhost:8889 -i "connection.pem" ubuntu@e-xx-xx-xx-xx.remote-server.com

//2nd terminal listens on port 8889 netcat -l -p 8889 //this command works and prints abc on the local machine echo "abc" | nc -v xx.xx.xx.xx(remote server ip) 8888

I have also successfully installed a squid proxy server in a docker container and used the following command to open socks connection with reverse forwarded port.

//Socks/Dynamic forwarding with…

2 Comments

CompTIA Network+

LVL 12

Prepare for the CompTIA Network+ exam by learning how to troubleshoot, configure, and manage both wired and wireless networks.

How can we use the secondary Citrix NetScaler Server, in an H.A. pair to safely test out new configurations before the same changes are propagated to the other NetScaler?

We have 2 x version 12.0 Citrix NetScaler Servers in our environment. They both are setup for auto-sync and propagation by default; but according to websites:

- https://support.citrix.com/article/CTX124439
- https://docs.citrix.com/zh-cn/netscaler/11/system/high-availability-introduction/configuring-command-propagation-high-availability.html

There are commands to that can be executed to turn the HA Sync and HA Propagation off and then back on later. At my company we would like to test out a 2 factor authentication option (during a planned maintenance window) and see how that works before it is available for all of the users. I am thinking of doing the following:

1. Enable the 2 factor authentication settings on the Authentication server.
a. Whatever it may be, that is a separate topic from this question.

2. Then after the Authentication server is ready, disable auto-sync and auto-propagation on the NetScaler HA-Pair.

3. Then configure the secondary NetScaler to work with the 2nd factor Authentication server.
a. Then plan a maintenance window to temporarily make the secondary NetScaler Server into the new primary NetScaler Server.
b. When I fail over the primary server, the secondary server will then become the new 'primary' server …

6 Comments

Please have a look at the image attached:

here is how my flow is
1. Database server
2. Application server and application server can establish connection with database server) (here the crystal report will run fine)
3. Local system (and client will establish connection with the application server) (here the report is not working)

as i'm not able to connect to database server directly, how i will open crystal report from client system.
for now i'm getting error "access to server is denied"

6 Comments

Question by

techdrive

2018-09-07Solved

Open source software

Can someone provide the name of some open source software that can assist with web utilization, os utilization virtualization and security vulnerabilities. It does not have to be all the same software. This is for linux and windows OS.

4 Comments

I want to find a way to get sound on my VPS at Vultr VPS I found a VSC aka Virtual Sound Card It was a little tricky to get working for some reason it would not install? It just did nothing after double clicking the EXE! I came up with the idea to convert it to MSI. I used emco Software MSI Package Builder and it installed the EXE for me. I figured I would install the MSI but emco installed it for me! So now I have a VSC now I want to connect it to my C-Media PCI Sound Card in my home desktop. I am going to use The NAS Project aka The Network Audio System and Port-Endpoint the C-Media PCI Sound Card and VSC together with VAC from Eugene Muzychenko Software aka Virtual Audio Cables. Then my VPS will have sound coming from my home computer speakers but they will be playing what the VPS is hearing while I am on the console. Is there anybody who can step me through this procedure I am not really talented at networks and there is a lot of protocol that I dont know. Plus really nobody does this kind of thing.

0 Comments

What device do you recommend that can email me when my server room's SOUND get above a certain decibel level ?
** Maybe something like https://serverscheck.com/sensors/sensor_sound.asp, etc ?

2 Comments

I recently got an older server. 6gb RAM, 1x2tb RAID array. 4 core CPU. Literally an old file server.

I upgraded their server and took this one.

It originally came with Server 2008, but I was unable to recover the key (they wiped the drives and it didn't have a sticker on it.

I was wondering of a linux OS with a web-based GUI. I have used Webmin in the past, and I like it, but it doesn't seem to be updated very often.

I want to know if there are any similar to you Webmin that you like to use. I don't really want to hang out in my office staring at a screen and I ain't great with terminal commands (through SSH). I like the module options like in Webmin. I have also tried Cockpit project, but it doesn't have much on it. And ClearOS is not that easy to use when setting up samba share. Amahi, I have the same issues.

What are your recommendations??

7 Comments

Would like product recommendations to copy an existing server and load that copy onto another box here at work. If have to purchase a product would not like a conflict with licensing and such. Would like to take the copying software to various IT contracting jobs.

6 Comments

okay also the operating system of the rescue disk is Debian and that of Linux server is CentOS 5..I am very new to this so please forgive my
haphazard formulation of the problem.We were supposed to check and then recover the datasystem of a supposedly corrupted linux
server using the fsck command. Now here the problem comes we first ran the fsck commands and the answer was that those commands cannot
be run as the disks were in use. So we started unmounting the disks one by one till there was none left and then we again ran
fsck commands this time..But the command failed to do anything. Various attempts to remount the different drives also failed.
So our questions are three fold

1) How do we get all the drives back in original configuration
2) How do we properly run fsck commands to check and rebuild the corrupted drives
3) if the system logged out of rescue mode and is restarted in normal mode at this moment will we lose all the data that is stored in that server

first time running fsck, df, fdisk commands

rescue:~# fsck -A
fsck from util-linux 2.25.2


rescue:~# df
Filesystem     1K-blocks   Used Available Use% Mounted on
/dev/root         645056 559588     85468  87% /
devtmpfs         3959080      0   3959080   0% /dev
tmpfs            4070628      0   4070628   0% /dev/shm
tmpfs            4070628  17836   4052792   1% /run
tmpfs               5120      0      5120   0% /run/lock
tmpfs            4070628      0   4070628   0%

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…

5 Comments

LVL 2

Question by

Dan

2018-08-28Solved

WD sentinel dx4000 adding a monitor to reset a password

Hi, I have a WD Sentinel dx4000 sunning server 2012R2. Actually my client does. Problem is he forgot the password. I was going to use my password reset CD, but the problem is, there is no display port on this sucker so I can't see whats going on at boot up.

Question, is there a way to connect a display to this thing? Or is there another way to reset the password on it?

Thanks a ton.

2 Comments

Microsoft Azure 2017

LVL 12

Azure has a changed a lot since it was originally introduce by adding new services and features. Do you know everything you need to about Azure? This course will teach you about the Azure App Service, monitoring and application insights, DevOps, and Team Services.

Technical support for a small office in Roseville California

10 Comments

What are the best steps to generate a CSR record on a Windows Server 2012?

Do I use the Server 2012 dashboard to generate the CSR record or do I use my IIS ?

Server Software

10 Comments

We have a ML310e Gen 8 that we just re-installed Windows Server 2012 Essentials (not Essentials R2) on and it keeps having an issue with rebooting.

Here's what happens:

You can reboot from the GUI with no issues.

When you reboot from command prompt, it locks up and the processor starts to overheat. You get the red hardware light on the front and you have to power it down manually.

We have updated the BIOS and intelligent provisioning. We did hardware scans and they came back clean. There's a post that says that this version has this same problem when you use a password with special characters in it. We changed the password and we are not using special characters.

Any ideas? This is really weird.

3 Comments

LVL 12

Post by

Experts Exchange

2018-08-07

Sysadmin Day was over a week ago, but that doesn't mean we stop appreciating them! In case you missed it, check out our blog post about the various roles sysadmins have in the office.

Sysadmin Day 2018: A Look Inside This Crucial Role | Community, Experts Exchange BlogSysadmins work tirelessly each day to solve trivial and critical problems. Let's take a look at what a sysadmin really is, what roles they play, and why they’re an essential part of a company.

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Question by

ITNC

2018-08-03Solved

Server 201 Standard 16 Core ISO Download

I have purchased Server 2016 and have the key being delivered to me. In the meantime, I would like to go ahead and download the ISO so I can create the VM. I can go to MS site to get the eval version but when trying to download, it will only download the Datacenter edition. Any ideas where I can download Server 2016 Standard 16 core and I will license it when I receive the key?

11 Comments

Question by

wcgplc

2018-08-03Solved

Server Error Logs

Hello,

Can you help us here please

Since we have to swap one of the domain server to a new version.
we are gettting error logs on two of our domain controllers and also having problems in syincing or replicating from each other.
could you help on fixing this of us.

Windows Serever 2008 R2

I have attached some of the error logs.
much apreciate it

Capture2.JPG

2 Comments

What is the best way to share a folder on my server (about 30G) with external users via Internet. We need extra users to have access to only that folder.

6 Comments

LVL 13

Question by

Dmitri Farafontov

2018-08-01Private

Converting NGINX to Apache Configuration.

Looking to convert the following into Apache mod_rewrite rules:

charset utf-8;
error_page 405 =200 $uri;

location / {
		root /path/to/static; # replace with your path to static files

		add_header 'Access-Control-Allow-Origin' '*' always;
		add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, HEAD' always;
		add_header 'Access-Control-Allow-Credentials' 'true' always;
		add_header 'Access-Control-Allow-Headers' 'Accept,Accept-Encoding,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Mx-ReqToken,X-Requested-With' always;

		include mime.types;
		types {
			text/plain asp;
		}

		location ~ ^(?<pref>/netEnt/[^/]+/)(?:en/en/)(?<postf>.*)$ {
			try_files $uri $pref$postf =404;
		}

		location ~ ^(?<pref>/netEnt/[^/]+/)(?:en|de|fr|es|pl|ru|it|cn)/(?<postf>.*)$ {
			try_files $uri $pref$postf =404;
		}

		rewrite ^/((?:currencies|gameclient_html)/.*)$ /netEntTouch/$1 last;
		rewrite ^/igt/cleopatra_gpe/studios/interactive/games/CleopatraGpe/(.*)$ /igt/cleopatra_gpe/studios/interactive/games/CleopatraGPE/$1 last;
		rewrite ^/igt/coyotemoon/studios/interactive/games/Coyotemoon/(.*)$ /igt/coyotemoon/studios/interactive/games/CoyoteMoon/$1 last;
		rewrite ^/wazdan/(.+_wzdn)/common/(.*)$ /wazdan/common/$2 last;
	}

	        location ~ ^/microgamingHtml/commonStatic/\"(.*)/microgamingHtml/(?<path>.+)\" {
		        rewrite ^ /microgamingHtml/$path;
	}

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5 Comments

Question by

Dario Vercelli

2018-08-01

AIX - upgrade samba version

Hi,

I have to update samba sun an AIX 7.1 TL 05 server, I currently have a version 3.6.25 and I want to bring it to a version samba-client-4.6.15-1.aix6.1.ppc.rpm downloaded from AIX Toolbox.
What operations should I do?

2 Comments

Newly released Acronis True Image 2019

In announcing the release of the 15th Anniversary Edition of Acronis True Image 2019, the company revealed that its artificial intelligence-based anti-ransomware technology – stopped more than 200,000 ransomware attacks on 150,000 customers last year.

Hi All,

I'm creating a bootable USB for SSP for the HP Server, i downloaded the ISO From HP and When I use RUFUS to create the bootable usb, it says vesamenu.c32 needs to be updated, when I do that and boot to the server it says vesamenu.c32 is not there, same issue when I don’t update the file.

does anyone know how to fix this?

Thanks,
Jen

3 Comments

I have an old version of Business Objects Crystal Report Server Software that we are trying to reinstate for Project Management. My owners don't want to spend the money for the latest/greatest in similar software.

I have everything running except for the CMC. As soon as I start it, it falls on its' face and goes right back to a stopped state. When I go to check the connection for the CMC I get the following pop up:

The event logs list the following, similar, error:

The environment is a virtual Windows Server 2012 R2 with a SQL Server 2016.

I have deleted and added the DSN numerous times with different drivers to no avail. (In the 32 Bit ODBC)

It should be noted that when I set up the DSN, and the connection in the CMC, it successfully connects to the database. The error only happens when I go back to the connections tab in the CMC.

The only possible issue I thought about was that this is a 64 bit virtual and the software is 32. However, I have never had an issue with this in the past on physical servers. (64 vs the CS 32 software)

Is there a way to see what the CMC is submitting for the connection string?

18 Comments

SIP and Primary SMTP domains do not match. Skype for Business 2015 client displays EWS not deployed.
Hello, I have an Exchange 2007 and Skype for Business 2015 Server on-premise solution deployed.
Originally, functioning fine with SAN certs using <company>.org domain for required certs on mail server and SfB 2015 Standard Edition solution (Standard, Edge and WAP servers).
Primary SMTP domain was <longcompanyname>.com (domain NOT included in the SAN certs) and everything functioned fine including Conversation History and Calendar synch between Outlook (2007-2013) and Skype for Business 2015 client.
Fast forward a few years and....
New domain purchased and Primary SMTP for each user changed to <shortcompanyname>.com
NOW, Conversation History and Calendar do NOT synch with Outlook anymore.
Research appeared to state I can have this circumstance without issue after running 'Set-CsClientPolicy -DisableEmailComparisonCheck $true'
Ran the powershell command on the SfB Standard Edition server, rebooted test client and SfB solution. STill Outlook Integration Error and EWS not deployed in SfB client Configuration info.
Advice?

7 Comments

Backup Exec on Small Biz Server 2008 (Hyper-V), with VSS problem and error V-79-40960-38521.
Cannot find the hotfix for Server 2008, only 2008 R2 and above. The backup fails about 40% of the time because of this error on the virtual server.

Can anyone find the hotfix or provide more information on this problem?

4 Comments

Hi Experts,

Is there a way to import xenapp applications from one farm to another? Existing farm is on xenapp 7.12 windows 2008 server, new farm is on xenapp 7.18 windows server 2016, please advise .