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Jan
6
awarded  Yearling
Dec
16
answered Linux server out of space
Dec
10
comment Why is server FIN'ing after starting TLS session?
Use Wireshark. It has a protocol dissector for TLS. If it doesn't recognize the stream as SSL/TLS, you can change this with: "Decode As..." from the context menu of a SSL/TLS packet.
Dec
9
answered How can I tell which static IP address one computer uses to connect to another computer?
Dec
8
revised How to prevent a symlink from being removed?
edited tags
Dec
8
comment How to prevent a symlink from being removed?
When you delete a symlink, is the same as you delete a normal file. The only permission checked are on the folder. You can limit access to the folder with a SELinux policy, or other mechanisms. But the main question is what is the real problem you are trying to solve?
Dec
8
answered How to prevent a symlink from being removed?
Dec
7
answered How to reset a tcp connection immediately on both ends on a certain condition using linux netfilter/iptables?
Nov
13
awarded  Enlightened
Nov
13
awarded  Nice Answer
Nov
11
comment OpenVPN-server disappointing performance
Encryption is done in CPU or, sometimes, offloaded in specialized co-processors (ASICs). It could be that only one CPU is saturated and that could be your bottleneck, even if the overall CPU average is low. When looking for performance problems you have to monitor both the guest and the host.
Nov
8
comment OpenVPN-server disappointing performance
It is interesting to see how the latency is degrading when you do a network test over VPN. It is important to see the if the degradation is only inside the OpenVPN link or also outside. If the degradation is only in OpenVPN, then you should focus on OpenVPN performance.
Nov
8
comment OpenVPN-server disappointing performance
How is the CPU usage on both OpenVPN endpoints (client and server) during the speed test? How much is the latency between endpoints? Test the latency when the link is saturated and when it is not saturated. 4 test in total.
Nov
3
awarded  Popular Question
Oct
14
awarded  Self-Learner
Oct
13
answered Linux recover faile
Oct
12
comment ProLiant DL360p Gen8 and ProLiant DL360p Gen9 and ProLiant DL360p Gen7 servers vulnerability of ILO
Rebooting the server will not reboot the ILO. You need to find the reboot option in ILO interface. Also rebooting the ILO has no impact on the main server. Think of ILO like another computer inside the same case. It has its own OS and a different HW platform than your server.
Oct
9
comment ProLiant DL360p Gen8 and ProLiant DL360p Gen9 and ProLiant DL360p Gen7 servers vulnerability of ILO
I do not know how is for HP, but for other servers you need to reboot the out of band management system. ILO is actually another small computer located on the server motherboard.
Oct
9
comment ProLiant DL360p Gen8 and ProLiant DL360p Gen9 and ProLiant DL360p Gen7 servers vulnerability of ILO
You should also contact HP may be they can help in securing the IMPI service.
Oct
9
comment ProLiant DL360p Gen8 and ProLiant DL360p Gen9 and ProLiant DL360p Gen7 servers vulnerability of ILO
You can either disable IPMI and lose remote access to the console. Or you can put the IPMI interface in a separate VLAN that is secured by a firewall and that the access is provided via a VPN server or a secure jump-point server.