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Issue Packet drops on this system for connections using ip_conntrack or nf_conntrack. Following messages seen in /var/log/kern on the centos nodes when one of the instances drops packets: $ tail …
How to Fix Nf_conntrack Table Full Dropping Packet Read MoreSwap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are …
How To Add Swap Space on CentOS 7 Read MoreI have a condition where my customers cannot sending email for some domain by directly. I give an advice to them for using Relay for all external delivery. But they do …
Relay Tips Based on User/Domain Receiver on Zimbra 8 Read MoreProblem The webclient shows “HTTP/1.1 503 Service Unavailable”, and the /opt/zimbra/log/mailbox.log file has the following error: 2016-06-02 10:15:33,436 INFO [qtp509886383-1033602:http://127.0.0.1:80/service/soap/AuthRequest] [] misc – Access to IP 10.10.10.3suspended, for repeated failed …
ZIMBRA: Network Service Error has occurred due to suspended IP addresses Read MoreOn my install, as well as an /etc/my.cnf , I found a /usr/my.cnf file that is read after the /etc/my.cnf I added the line Code: sql_mode=”” as the last line …
Mariadb 10.2 – Disabling Strict Mode Read MoreSet Up a Single Node If Zimbra proxy is installed with Zimbra Collaboration on the same server, do the following. 1. Enable the proxy for the web. /opt/zimbra/libexec/zmproxyconfig -e -m …
Zimbra Proxy Manual: Advanced Proxy Configuration Examples via CLI Read MoreContents 1. View cache 2. Clear cache View cache A configured domain name service ( DNS ) server such as Bind may store previously resolved domain names to a local cache. By …
How to view and clear Bind DNS server’s cache on Linux Read Morehttps://wiki.zextras.com/wiki/ZxMobile_Autodiscover https://wiki.zextras.com/wiki/Category:ZxMobile_Guide
ZeXtras Read MoreThe release of EL7 marks the shift from Ext4 to XFS as the default filesystem for RHEL-based distros like CentOS. While XFS brings many improvements and features to the OS, …
Enabling Quotas in CentOS7 Read MoreReset MySQL or MariaDB Root password First, stop the database server. If you use MySQL, type the following command and hit ENTER key. $ sudo systemctl stop mysql For MariaDB: …
How To Reset MySQL Or MariaDB Root Password Read More