Search found 16 matches

by guitardood
Fri Jul 12, 2019 4:07 pm
Forum: Administrators
Topic: Ajax Webmail Strange Behavior - 8.8.10_P8
Replies: 0
Views: 244

Ajax Webmail Strange Behavior - 8.8.10_P8

Hello All, I had a user come to me this morning with a strange issue. She us using Chrome on WIndows 7 with the Ajax client and is set to conversation view. For one contact, and only this contact, if she scrolls to a particular message in the conversation and then uses the reply-all button that mate...
by guitardood
Sat May 25, 2019 7:30 am
Forum: Administrators
Topic: Suddenly, Horrendously Slow Server - Errors in zmmailboxd.out
Replies: 0
Views: 262

Suddenly, Horrendously Slow Server - Errors in zmmailboxd.out

Hello, I have a vm server running ZCS Release 8.8.10.GA.3039.UBUNTU16.64 UBUNTU16_64 FOSS edition, Patch 8.8.10_P8 on Ubuntu 16.04.6 LTS with Z-PUSH 2.5.0+0-0 with zimbrabackend68. I have Apache running as the front door door on the server which either reverse proxies to Zimbra's proxy server or run...
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: 1246

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: 1246

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: 363

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: 1246

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: 4254

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: 670

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: 2266

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: 2266

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...

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