Summary A memory corruption vulnerability exists in Exim versions 4.69 and older (CVE-2010-4344). Exim is the mail transfer agent used by cPanel & WHM. Security Rating This update has been rated as Important by the cPanel Security team. Description A memory corruption vulnerability has been discovered in Exim. This vulnerability may lead to arbitrary code… Continue reading Exim Remote Memory Corruption Vulnerability Notification (CVE-2010-4344)
Plesk : ProFTPD Remote Code Execution Vulnerability and Exploit
A flaw in the popular ProFTPD FTP server potentially allows unauthenticated attackers to compromise a server. The problem is caused by a buffer overflow in the pr_netio_telnet_gets() function for evaluating TELNET IAC sequences. ProFTPD bug report: http://bugs.proftpd.org/show_bug.cgi?id=3521 Parallels Plesk Panel 9.x, 9.5x and 10 include this vulnerability. Parallels will issue Micro Updates (hotfixes) for 9.5.2… Continue reading Plesk : ProFTPD Remote Code Execution Vulnerability and Exploit
CPU/MySQL Usage is blank in WHM
“CPU/Memory/MySQL Usage” page blank This is a common error across all cPanel releases. The most likely cause of this issue is related to the utility that actually generates the statistics. When cPanel is installed, several entries are added into crontab for the root user. The following is a list of the default crontab entries from… Continue reading CPU/MySQL Usage is blank in WHM
PPP in container
To start the pppd daemon in a container / VPS you need PPP enabled for the container. Then it is possible, for example, to connect to your DSL provider in a VPS. ppp modules need to be loaded in the HN : # lsmod | grep ppp # # modprobe ppp_async # modprobe ppp_deflate #… Continue reading PPP in container
Placing /vz partition to external storage (NAS, NFS)
Sometimes it is need to place /vz partition on external storage. How to perform this procedure on Parallels Virtuozzo Containers system? Here are exact steps: 1. Make sure that external storage is available as device in /dev/ directory (via e.g. NFS or ISCSI layer) 2. Mount this storage under e.g. mount point /vzs using required… Continue reading Placing /vz partition to external storage (NAS, NFS)
cPanel :: Berkeley DB error: PANIC: fatal region error detected; run recovery
Exim logs /var/log/exim_mainlog shows Berkeley DB error. Berkeley DB error: PANIC: fatal region error detected; run recovery Berkeley DB error: PANIC: fatal region error detected; run recovery Berkeley DB error: PANIC: fatal region error detected; run recovery Exim stores certain databases using BerkeleyDB (e.g. aliases file). These are due to corrupted Berkeley DB. In cPanel… Continue reading cPanel :: Berkeley DB error: PANIC: fatal region error detected; run recovery
Plesk Migration Manager is unable to connect to Plesk Agent installed on a remote server.
Source server has Plesk Migration agent installed. Plesk Migration Manager is installed on Plesk server. Plesk keeps displaying Unable to upload scout: Unable to run migrmng: Unable to connect to remote host xxx.xxx.xxx.xxx. Please check if the remote server is available for connection and if the correct login and password are specified. To successfully utilize… Continue reading Plesk Migration Manager is unable to connect to Plesk Agent installed on a remote server.
Plesk 9.3 Latest update of openssl breaks Parallels Panel :: Starting Plesk… failed
Latest update of the openssl package from CentOS breaks Parallels Panel 9.x. The following errors are displayed in the /var/log/sw-cp-server/error_log file when Panel is trying to start: # tail /var/log/sw-cp-server/error_log 2010-04-07 01:56:38: (log.c.75) server started 2010-04-07 01:56:38: (network.c.336) SSL: error:00000000:lib(0):func(0):reason(0) 2010-04-07 01:57:59: (log.c.75) server started 2010-04-07 01:57:59: (network.c.336) SSL: error:00000000:lib(0):func(0):reason(0) 2010-04-07 01:57:59: (log.c.75) server started… Continue reading Plesk 9.3 Latest update of openssl breaks Parallels Panel :: Starting Plesk… failed
How do I install APF firewall into the VE?
The installation of APF requires some additional steps to be taken on the hardware node. 1. First of all, you should define which iptables modules are available for VEs. Edit /etc/sysconfig/iptables-config file on a Virtuozzo hardware node: IPTABLES_MODULES=”ipt_REJECT ipt_tos ipt_TOS ipt_LOG ip_conntrack ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state iptable_nat ip_nat_ftp” Edit /etc/sysconfig/vz… Continue reading How do I install APF firewall into the VE?
Virtuozzo : How do I get amount of network traffic consumed by a Container?
f you have Service Container running on a hardware node then you may use the utility ‘vza_ve_stat’ to obtain amount of network traffic consumed by any container on a node. Usage: vza_ve_stat user@host ctid start_time [end_time] where: user – vzagent0 host – IP address of Service Container on a hardware node ctid – ID of… Continue reading Virtuozzo : How do I get amount of network traffic consumed by a Container?