Linux Networking

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The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.

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Hy Guys!

I use OpenVPN server integrated to ASUS RT-N65U wireless home router, the server works with these parameters:
1) Encapsulation Layer - L3 TUN
2) Protocol TCP
3) Enabled LZO for Data Com…

737 views
Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

i have set some rules in ip tables as example i added

(CODE)

and thats how my iptables looks like

(CODE)


but there is always ips by-pass the limit and they go up to 400 connection per …

237 views

This is a redhat Linux server 6.3.
when I reboot the resolv.conf file has no dns servers listed.

I have a number of VLANs attached to a single interface.  they are set up as ifcfg-eth0:1 through 6…

839 views

Hi,
Within Kmail below, I do not see option for SMTP and what should it be, for sending out mail?

1138 views

Hello there,

I am trying to capture FTP packets between my PC(192.1681.123) and IP camera(192.168.1.103) and the FTP port is 2020. But for some reason I get only these 2 packets and the first packe…

649 views

The version of Linux Ubuntu is:-

Linux version 4.4.0-38-generic (buildd@lgw01-22) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #57~14.04.1-Ubuntu SMP Tue Sep 6 17:20:43 UTC 2016

After bo…

1678 views

This is the version of Linux Ubuntu 14.04.03

Linux version 4.4.0-38-generic (buildd@lgw01-22) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #57~14.04.1-Ubuntu SMP Tue Sep 6 17:20:43 UTC 2016…

2670 views

Hallo Friends,
I have two Red Hat 7 virtual servers. One is Primary and the other one is a Secondary. Need to have  replication of files from Primary and the Secondary.  Please suggest few options an…

1473 views

Can someone provide a sample SQUID config file for WINDOWS that allows LOCAL WINDOWS USERS to access Squid if they are authenticated?

731 views

I am running iptables on Centos and want them to count all traffic on other device, so I have mirrored ports between the Centos and the device.
I can dump all traffic with tcpdump but the counters on…

445 views
How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

I have Linux running router and I use IPTABLES to count usage of every ip address who is routed.
My config for iptables separate  download for Iceland and foreign and count the bytes.

Are there an…

260 views

Hello Experts,

I have setup a DNS server using BIND9 on Ubuntu distro.

The fact that the IP for this server has been changed twice and i had to reconfigure DNS to use the new IP.

The very fir…

2267 views

I wrote a powershell script to send syslog messages to a Linux syslog server (rsyslog). The message is logged but the priority doesn't appear to be logged with the rest of the message.

The message…

666 views

Running Freeradius on Debian 8.5. system loses the ability to ping the default gateway every couple of hours. The system can still ping the local network.

~$ sudo route
Kernel IP routing table
De…

1365 views

Hi there,

I need to know who is the "REAL" SIP trunk provider.

So, I have a SIP trunk provider, that him self, use a provider, that use a provider, that use a provider and then BOOM, the use THE…

2094 views

Hi Experts,

We are building an automated HAProxy + NGINX environment to host high load web campaigns.
One of the requirements is obviously to know how much traffic each campaign used during the ru…

474 views

Hi
We have Windows 7 PCs on our network and DCs are windows 2012.
Also we have Linux debian proxy servers for students and we use BLOXX, which is our internet filtering system. Currently YouTube ac…

369 views

So it appears I should some sort of DNS record so that a client can just go to the DNS server and know where to find the IPA servers???

I have a Windows domain hosted on a Windows small business s…

270 views

"uptime" high (200+) on RHEL6 but CPU usage is low... any ideas why?

471 views
Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

I setup my ipa server and replica... now trying to set up client.  not sure why its complaining about DNS... the IPA servers have DNS


(CODE)

2102 views

I searched "nagios quick start" and found this.  https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/quickstart-fedora.html.... I sort of followed it blindly on a fresh VM while doing …

1391 views

I want rw mounts and I want username/group matching by name, not gid/uid.  We have a mix of RHEL/CentOS 6/7.  What are the best/simplest options to do this?

359 views

Hello Experts,

We have a Dell PE720 that runs Linux and has a error "PCI1320 Fatal Bus Fatal Error on Bus 64 device 2 Function 0. Power Cycle system."  Any ideas or direction we should take in trou…

3102 views

Dear Team,
There are two servers pwd01.us.com and pwd02.us.com.
d01 is the prod server and d02 is the Disaster recovery(DR) backup server.
Both are Red Hat Enterprise Linux 7.0 on Virtual boxes.
M…

285 views

I can not find in official Exim documentation - what are recommended OSes for it: CentOS, Debian, Ubuntu, Suse, Windows?

1081 views
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