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Archive for December, 2019

Asus – AC68U , OSPF, DD-WRT, OpenVPN, F/W, r40854

Despite a few quirks, I wanted to post some highlights ( success story ) of using the r40854 firmware for the Asus AC68U and some of DD-WRT's capabilities with this firmware.  Took some time to try this with various firmware versions and this appears the most stable combination so far:     OSPF works     VPN […]

OpenVPN: WARNING: this configuration may cache passwords in memory — use the auth-nocache option to prevent this

Running into this? OpenVPN: WARNING: this configuration may cache passwords in memory — use the auth-nocache option to prevent this Fix it by adding this parameter to the OpenVPN config file: # Don't save passwords when connected. auth-nocache Restart your OpenVPN connection. Cheers, TK

OpenVPN: An error occurred installing the TAP device driver. in Windows 10

Suffering from this in Windows 10? OpenVPN: An error occurred installing the TAP device driver.   or perhaps a variant of the above? OpenVPN: Write to TUN/TAP : Unknown error (code=122) Then install a new version of the OpenVPN client application.  You may still get the above so open up device manager.  Look under the Network […]

TLS Error: cannot locate HMAC in incoming packet from [AF_INET]

Getting this? TLS Error: cannot locate HMAC in incoming packet from [AF_INET]192.168.0.76:65169 Solve it by ensuring these two lines match the server: cipher AES-256-CBC auth SHA256 And ensure they appear in the sever config as well as follows: cipher aes-256-cbc auth sha256   Cheers, TK

TLS Error: reading acknowledgement record from packet

Getting this? Dec 28 04:16:28 DD-WRT-INTERNET-ASUS daemon.notice openvpn[18115]: TCP connection established with [AF_INET]192.168.0.76:64101 Dec 28 04:16:29 DD-WRT-INTERNET-ASUS daemon.notice openvpn[18115]: 192.168.0.76:64101 TLS: Initial packet from [AF_INET]192.168.0.76:64101, sid=6624e5bc bebf0a81 Dec 28 04:16:29 DD-WRT-INTERNET-ASUS daemon.err openvpn[18115]: 192.168.0.76:64101 TLS Error: reading acknowledgement record from packet Dec 28 04:16:29 DD-WRT-INTERNET-ASUS daemon.err openvpn[18115]: 192.168.0.76:64101 Fatal TLS error (check_tls_errors_co), restarting Dec 28 […]

Networking: connect: Network is unreachable

Getting this? [root@sat01 ~] # ping 192.168.0.6 connect: Network is unreachable [root@sat01 ~] #  When you're on a separate VLAN? [root@sat02 ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00     inet 127.0.0.1/8 scope host lo        valid_lft forever […]

javax.persistence.NonUniqueResultException: query did not return a unique result: 2

Getting these? 2019-11-28 01:28:08,128 INFO com.cloudera.cmf.scheduler-1_Worker-1:com.cloudera.cmf.service.ServiceHandlerRegistry: Executing command GlobalPoolsRefresh BasicCmdArgs{scheduleId=1, scheduledTime=2019-11-27T10:00:00.000Z}. 2019-11-28 01:28:09,775 WARN scm-web-886:org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver: Resolved [java.io.IOException: Close org.eclipse.jetty.server.HttpConnection$SendCallback@2a3e3d03[PROCESSING][i=null,cb=org.eclipse.jetty.server.HttpChannel$ContentCallback@23de18e3] in state PROCESSING] to ModelAndView: materialized View is [com.cloudera.server.web.common.JamonModelAndView$JamonView@4a0945f9]; model is {} 2019-11-28 01:28:09,779 WARN scm-web-886:org.eclipse.jetty.server.HttpChannel: ERROR dispatch failed org.eclipse.jetty.io.EofException: Closed         at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:482)         at org.springframework.security.web.util.OnCommittedResponseWrapper$SaveContextServletOutputStream.write(OnCommittedResponseWrapper.java:638)       […]

ERROR 1044 (42000): Access denied for user ‘skip-grants user’@’skip-grants host’ to database ‘performance_schema’

If this happens after you do a mass database restore: ERROR 1044 (42000): Access denied for user 'skip-grants user'@'skip-grants host' to database 'performance_schema' ERROR 1142 (42000): INSERT command denied to user 'skip-grants user'@'' for table 'variables_by_thread' ERROR 1044 (42000): Access denied for user 'skip-grants user'@'skip-grants host' to database 'performance_schema' Query OK, 1 row affected (0.00 […]

Device /dev/sda excluded by a filter.

Getting this? [root@mdskvm-p06 ~]# pvcreate /dev/sda   Device /dev/sda excluded by a filter. It's likely because you're running the multipath daemon.  So partitions have to be created on the associated multipath devices, not the device names themselves:

RTNETLINK answers: Network is unreachable

Getting this? RTNETLINK answers: Network is unreachable Maybe the interface is down: ip link set eno1 up ip addr add 10.0.0.100 dev dno1 ip route add default via 10.0.0.1 dev dno1 Thx,


     
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