Search found 14 matches

by guitardood
Mon Feb 25, 2019 6:16 pm
Forum: Installation and Upgrade
Topic: Possible Bug - nginx proxy not seeing memcache when DoS workaround applied
Replies: 5
Views: 897

Re: Possible Bug - nginx proxy not seeing memcache when DoS workaround applied

That would definitely work, as would adding a deny rule on a gateway server, if installed. Though, on a busy Zimbra server, adding iptable filtering could be the straw to break the camel's back. Once turned on, whether the rule is for that connection or not, it will have to check every packet going ...
by guitardood
Mon Feb 25, 2019 5:49 pm
Forum: Installation and Upgrade
Topic: Possible Bug - nginx proxy not seeing memcache when DoS workaround applied
Replies: 5
Views: 897

Re: Possible Bug - nginx proxy not seeing memcache when DoS workaround applied

This strikes me as being a bug. It is. What value is there to setting zimbraMemcachedBindAddress if it is ignored when nginx is configured? It does set the bind address on which memcached runs, just doesn't effect the memcached address which nginx uses. I'm not familiar enough with the innards of Z...
by guitardood
Sat Feb 23, 2019 6:42 pm
Forum: Administrators
Topic: Configure Zimbra's Postfix for before-queue Amavisd scanning
Replies: 0
Views: 302

Configure Zimbra's Postfix for before-queue Amavisd scanning

I'm running ZCS Community version installation, version Release 8.8.10.GA.3039.UBUNTU16.64 UBUNTU16_64 FOSS edition, Patch 8.8.10_P6. I find plenty of postfix documentation for doing this with vanilla postfix, but does anybody have any insight to how this may be accomplished under Zimbra? Any help w...
by guitardood
Thu Jan 24, 2019 11:45 am
Forum: Installation and Upgrade
Topic: Possible Bug - nginx proxy not seeing memcache when DoS workaround applied
Replies: 5
Views: 897

Possible Bug - nginx proxy not seeing memcache when DoS workaround applied

Hello All, I just found a problem while troubleshooting another issue. For some reason, in the nginx.log file, I found it littered with the error "no memcache server available". I remembered modifying the memcached IP address to 127.0.0.1 to mitigate DoS against memcached (per https://wiki...
by guitardood
Tue Oct 17, 2017 6:32 am
Forum: General Questions
Topic: Keep getting pop up "Do you want to update your notification permission"
Replies: 3
Views: 4066

Re: Keep getting pop up "Do you want to update your notification permission"

Hello, I'm wondering if you ever found out what was causing this popup. I have an office full of people, none of whom changed their browser settings (though chrome updates itself a little too frequently), who all of a sudden started receiving these "update your notification permission" pop...
by guitardood
Tue Sep 05, 2017 6:23 pm
Forum: Administrators
Topic: Apache Struts REST
Replies: 0
Views: 638

Apache Struts REST

Not sure if this is the correct area to pose this question or even if ZCS is vulnerable. I'm wondering if we need to be concerned about the announced Apache Struts REST vulnerability, described at this link http://www.zdnet.com/article/critical-security-bug-threatens-fortune-100-companies/ , and if ...
by guitardood
Fri May 19, 2017 3:47 pm
Forum: Administrators
Topic: Google detects zimbra login pages as phishing sites.
Replies: 6
Views: 2141

Re: Google detects zimbra login pages as phishing sites.

I have no confirmation of this from Google, but, apparently, Google's reason for this behavior is related to using '302-temporarily moved' instead of '301-permanently moved' for redirects from HTTP to HTTPS. On the site which I was having problems, we're using the 'z-push' software for ActiveSync em...
by guitardood
Thu May 18, 2017 7:06 pm
Forum: Administrators
Topic: Google detects zimbra login pages as phishing sites.
Replies: 6
Views: 2141

Re: Google detects zimbra login pages as phishing sites.

Has anyone found a solution this this issue? Contacting google via their search console yields a 'Review failed for' response. The site HAS NOT been compromised in any way and is pretty standard Zimbra (Release 8.6.0.GA.1153.UBUNTU12.64 UBUNTU12_64 FOSS edition) installation on Ubuntu 12.04.5 LTS. T...
by guitardood
Sun Feb 02, 2014 9:49 pm
Forum: Installation and Upgrade
Topic: Installation of 8.0.6 on Ubuntu 12.04 LTS - 2 error messages
Replies: 10
Views: 714

Installation of 8.0.6 on Ubuntu 12.04 LTS - 2 error messages

Bill,

One more thing. Your question regarding apparmor; It is uninstalled. That subsystem seems to cause a lot more problems than it fixes, IMHO. I'm sure it has a place, but not on a closed and tightly monitored system such as those I administer.
Thanks again.
Best,

guitardood
by guitardood
Sun Feb 02, 2014 10:00 am
Forum: Installation and Upgrade
Topic: Installation of 8.0.6 on Ubuntu 12.04 LTS - 2 error messages
Replies: 10
Views: 714

Installation of 8.0.6 on Ubuntu 12.04 LTS - 2 error messages

[quote user="10330phoenix"]Are you saying that Citadel is on the same server as ZCS? I'd still be tempted to start with two cores and assuming your HD subsystem is up to the job then forty-two accounts shouldn't be a problem.[/QUOTE] Citadel was on it's own VM on the same physi...

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