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0
votes
1answer
24 views

Google Authenticator - generate new set of emergency codes

I use Google Authenticator on my SSH servers with Andoid app for generating codes. After I run $ google-authenticator application create set of emergyncy keys: ...
-1
votes
1answer
76 views

postfix mail gateway recipient address verification for some domains

I want to do the recipient address verification for some domains, but many domains I want to exclude from verification are subdomains of domains that are being verified and mysql (table where keys are ...
1
vote
2answers
105 views

How Can You Tell If IPSec Is Installed on Cisco

How can I tell if my Cisco router has IPSec installed? I went into configuration mode to see about setting up a crypto policy, but the 'crypto' keyword isn't available. Is this an indication that it ...
0
votes
1answer
254 views

OpenDKIM - verifying mail forwarded by mailing lists

I'm using OpenDKIM for verifying signed mails that are incoming to my mail server and use it as a spam addon (if dkim is broken, mail lands in Junk). However, I'm getting lot of false-positives with ...
1
vote
1answer
614 views

Is this normal that api-verify.recaptcha.net points to google.com?

A user just emailed me saying he could not complete registration in my website. I just checked and already found out it's the recaptcha that is causing the problem. I have been using this recaptcha ...
8
votes
3answers
9k views

How to avoid lftp Certificate verification error?

I'm trying to get my Pelican blog working. It uses lftp to transfer the actual blog to ones server, but I always get an error: mirror: Fatal error: Certificate verification: subjectAltName does not ...
0
votes
1answer
86 views

Looking into providng mailing address validation services in-house. What is needed? [closed]

We are looking into validating address information in house for both security concerns and performance reasons. My first intuition is build a *nix box with postgres sql on a separate physical ...
0
votes
5answers
354 views

“System File Checker” (sfc-like) for Linux

I am trying to locate a tool, not unlike either the "sfc" command on Windows or the "sysck" command on AIX, which can verify that the file contents, ownerships and permissions are correct. The ...
0
votes
1answer
487 views

Best practices for mass file transfer with verification?

I'm looking for a bit of advice on transferring a several files from Windows-based workstations to a Linux Server running Ubuntu Server LTS 10.04. At the moment I've been mounting the shares on the ...
0
votes
1answer
160 views

Postfix connection cache / address verification probes

Is Postfix connection cache also applicable for address verification probes? My setup of 2 frontends with 1 backend sometimes runs into trouble under high load. Frontends verify recipients on the ...
0
votes
1answer
333 views

Check if an e-mail address exists before sending [closed]

Is there a mechanism for verifying an e-mail address exists before sending?
0
votes
1answer
656 views

How do I receive email sent to postmaster?

I have a VPS server that I would like to get an SSL certificate for, and the CA needs an email address to verify that I own the domain. The options are: postermaster@mydomain.com, ...
7
votes
8answers
714 views

How do you verify a restore?

What tool(s) would you use to verify that a restored file structure is whole and complete? My environment is a Windows Server 2008 file server. (We use tape for backup, but that is inconsequential.) ...
0
votes
3answers
249 views

Why is Yahoo blocking our email address verifications and bouncing them back

I have a legitimate site www.angelescity.ph a Free Classifieds site, once someone posts an advert a verification email is sent.. Yahoo has been blocking them, not delivering and bouncing them back, ...
0
votes
3answers
62 views

Recommended system self test tool (what software should I use)?

We have a setup of: ~20 nodes on EC2 Several AppEngine deployments Several small locally hosted nodes All these machines represented 1 distributed system that does "cool things". The problem is ...
4
votes
3answers
312 views

Know (at a glance) your Mac client is up-to-date

We have over a thousand Mac clients, and occassionally issue changes that affect many or all of them (such as installing new software, creating local user accounts, or applying updates). I want to ...