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Apr
27
comment Why isn't VMware Client Integration plugin running on Mac OS X 10.11?
What version of VMware vCenter?
Apr
18
comment HTTP to HTTPS with mod_rewrite; Apache needs restart
mod_rewrite isn't recommended and to use VirtualHosts instead -- This is not correct, as mod_rewrite and Apache VirtualHosts are not mutually exclusive, and can be used together. VirtualHosts are the preferred way to serve a SSL site, and are the Apache default. However, you would still need a second mechanism to perform the redirect, and this would generally be either mod_alias or mod_rewrite, as @M Glatki indicates below.
Apr
15
comment Persist IP address alias across reboots in CentOS/RHEL 6 using “ip” command
Honestly, is this feature documented anywhere? It's vaguely hinted at in /usr/share/doc/initscripts-*/sysconfig.txt, which quickly mentions configurations like IPADDRn=.
Apr
14
comment IPMI / Remote management missing options for IP Address in BIOS
That generation of Supermicro's IPMI had many security vulnerabilities (See community.rapid7.com/community/metasploit/blog/2013/07/02/… , & look under google.com/search?q=supermicro+ipmi+security ), and IIRC Supermicro only patched some of them, and didn't think it was worth it to patch all of the problems. Make absolutely sure that the BMC is on a private, secure network. See Supermicro's BMC Security Best Practices.
Apr
13
comment Allowing httpd to run a bash script in /usr/bin/
Could you clean up the formatting of this question? It's hard to tell what you are trying to convey after the ausearch -l -i | grep httpd command.
Apr
13
comment IPMI / Remote management missing options for IP Address in BIOS
In the Supermicro X8 motherboards, the BIOS does not always have an option to configure the BMC. In those old servers, IPMI & the BIOS were not always well integrated, and the level of integration was pretty variable across their product lines. Supermicro may have used 2-3 different BMCs from different vendors across the X8 product line, and Supermicro's support was very sloppy. This situation improved with the X9 motherboards.
Apr
11
comment Yum update errors
Also see: stackoverflow.com/questions/28120410/centos-cant-install-php-gd
Apr
7
comment CentOS 7 Unable to Resolve Any Host Names
127.0.0.1 is the first DNS server in the list, so you should verify that it is replying with the expected results. The resolver will query the servers in the order listed. Your host will ONLY query 127.0.0.1 server, and will not try the second or third server unless the first server times out. This means that if you query 127.0.0.1 and it responds either positively (like hostx.example.org has address 192.168.1.100) or negatively (like Host foo.example.org not found: 3(NXDOMAIN)), the next two servers will not be queried at all.
Apr
1
comment Backing up MySQL MyISAM databases by copying the physical folders
Oh I see-- you're backing up 20GB. Restoring a 20GB MySQL database shouldn't take an order of days. For me, backups took about 10 minutes including the overhead of compression, and restoring took 10-20 minutes. This was on fast SSDs, but even on a slower array, mysqldump shouldn't be very slow.
Apr
1
comment Backing up MySQL MyISAM databases by copying the physical folders
Oracle's MySQL Enterprise Backup is a great product, and much faster then mysqldump, and allows live backups of InnoDB data. However, with the MyISAM engine, MEB still does a FLUSH TABLES WITH READ LOCK; See: MySQL Enterprise Backup 4.0 User's Guide/7.1 Optimizing Backup Performance/MyISAM Considerations
Apr
1
comment Backing up MySQL MyISAM databases by copying the physical folders
mysqldump is slower then simply copying the files, but if you have so much data that restoring the mysqldump image takes an order of days, then consider that restoring the MyISAM files directly might also take a day or more.
Apr
1
comment Backing up MySQL MyISAM databases by copying the physical folders
Also see "Making Backups by Copying Table Files" under dev.mysql.com/doc/refman/5.6/en/backup-methods.html
Apr
1
comment Backing up MySQL MyISAM databases by copying the physical folders
You don't even need cold backups for this, and the database can be available in read-only mode for the duration of the backup. You can simply lock the database with FLUSH TABLES WITH READ LOCK, copy the MyISAM files, then unlock the tables: dev.mysql.com/doc/refman/5.7/en/backup-methods.html . This is one reason why many folks still like MyISAM over InnoDB.
Mar
30
comment `yum-security` functionality for CentOS?
EPEL supports this currently. If you're willing to switch to Scientific Linux, SL6 & newer also support yum-security. See Automatically check for Security Updates on CentOS or Scientific Linux?
Mar
19
comment Configuring OpenLDAP over TLS for RHEL/CentOS 6.5
Thanks. In my case setting TLS_CACERTDIR /etc/openldap/certs fixed my problem. TLS_CACERTDIR was previously pointing at a non existing directory.
Mar
17
comment Configuring OpenLDAP over TLS for RHEL/CentOS 6.5
@84104 : Isn't /etc/ssl/certs/ included by default, since it's part of the default TLS/SSL libraries?
Mar
16
comment Configuring OpenLDAP over TLS for RHEL/CentOS 6.5
You could try TLS_REQCERT never to ignore TLS Verification errors during testing (this is unwise for production as it disables PKI), or explicitly create a new directory to hold the certificate chain, like TLS_CACERTDIR /usr/local/etc/ssl/certs and make sure that the certificates requires for the certificate chain are all present and readable in that directory.
Mar
16
comment Configuring OpenLDAP over TLS for RHEL/CentOS 6.5
I don't have the answer, but I'm trying to tackle the same issue today, and there are many people who run into problems with this. What error is your LDAP client presenting? Do you get the same issue when testing with ldapsearch? Is your server certificate provided by a major vendor, and is the entire certificate chain being presented by the server?
Mar
4
comment Can I use Apache variables with mod_alias's `Redirect`, instead of using mod_rewrite?
But Apache variables are a part of the core Apache code, and are not part of mod_rewrite. mod_rewrite has it's own set of parameters, like %{HTTP_HOST}, which I believe are different. In my case, I'm not using mod_rewrite at all, just mod_alias and the Apache core code.
Mar
3
comment Can I use Apache variables with mod_alias's `Redirect`, instead of using mod_rewrite?
That's similar, but is more about mod_alias verses mod_rewrite, and appears out of date. %{HTTP_HOST} is a mod_rewrite thing. Apache 2.2 didn't support many of these Apache variables back then.