Abstract: This application discloses a method and an apparatus for determining a compromised host, and relates to the field of computer technologies. According to the method, a compromised host in a private network (or an intranet) can be accurately determined in a scenario in which the host in the private network (or the intranet) sends a packet via a NAT device. The method is applied to a security device deployed at a border between an external network and an internal network. The method includes: intercepting a file sent by the external network to the internal network, where the file is provided by a server of the external network based on a request of a target host of the internal network; determining a traceability probe file in response to the intercepted file being a malicious file; and sending the traceability probe file to the target host.

Abstract: In accordance with an embodiment, a method includes: receiving, from a host, a DNS domain name request forwarded by the internal DNS server; in response to a domain name carried in the DNS domain name request being a malicious domain name, determining a fake internet protocol (IP) address that is in a one-to-one correspondence with the malicious domain name; returning the fake IP address to the host via the internal DNS server; receiving a communication link establishment request packet from the host; and in response to a destination IP address in the communication link establishment request packet being the fake IP address, determining that the host is a compromised host.

Abstract: Disclosed is an apparatus for testing the thermal-state conduction performance of an electrical penetration piece of a high-temperature gas-cooled reactor. The apparatus includes a testing mechanism. The testing mechanism includes a base, a test portion arranged on the base. According to the apparatus for testing the thermal-state conduction performance of the electrical penetration piece of the high-temperature gas-cooled reactor, a threaded rod is rotated to drive a winding column to rotate to tension an insulating rope, and the insulating rope is tensioned to drive a copper pipe to be contracted to be in close contact with pins, so that the connection of the pins of the electrical penetration piece is completed. Through the testing portion, the conduction performance of the electrical penetration piece of a primary circuit of an absorption ball system can be tested in the helium atmosphere at 160° C.

Abstract: In accordance with an embodiment, a method includes: receiving, from a host, a DNS domain name request forwarded by the internal DNS server; in response to a domain name carried in the DNS domain name request being a malicious domain name, determining a fake internet protocol (IP) address that is in a one-to-one correspondence with the malicious domain name; returning the fake IP address to the host via the internal DNS server; receiving a communication link establishment request packet from the host; and in response to a destination IP address in the communication link establishment request packet being the fake IP address, determining that the host is a compromised host.

Abstract: This application discloses a method and an apparatus for determining a compromised host, and relates to the field of computer technologies. According to the method, a compromised host in a private network (or an intranet) can be accurately determined in a scenario in which the host in the private network (or the intranet) sends a packet via a NAT device. The method is applied to a security device deployed at a border between an external network and an internal network. The method includes: intercepting a file sent by the external network to the internal network, where the file is provided by a server of the external network based on a request of a target host of the internal network; determining a traceability probe file in response to the intercepted file being a malicious file; and sending the traceability probe file to the target host.

Abstract: A method for preparing a universal microbial medium by eutectic system-based cellulose liquefaction. The method includes: 1) mixing ionic liquid and cellulose, where the ionic liquid is preheated; 2) mixing a mixed solution I obtained in step 1) and distilled water; 3) filtering a mixed solution II obtained in step 2); and 4) diluting a filtrate obtained in step 3) with the distilled water to obtain the carbon source. A medium prepared from the carbon source can be used for culturing various microorganisms, with a desirable growth state of the microorganisms.

Abstract: A network device obtains to-be-detected mirrored traffic between a client and a server, obtains a first session information sequence based on the to-be-detected mirrored traffic, where the first session information sequence includes a plurality of pieces of session information, the plurality of pieces of session information have a one-to-one correspondence with a plurality of login sessions, and an arrangement order of the plurality of pieces of session information in the first session information sequence is consistent with a chronological order of the plurality of login sessions, using the first session information sequence as a first Markov chain, and obtains a state chain probability value of the first Markov chain, and determines, based on the state chain probability value of the first Markov chain and a first benchmark probability value, whether the plurality of login sessions are a brute force attack.

Abstract: The present disclosure discloses a method, apparatus and electronic device for determining skin smoothness, which relates to the field of computer vision technologies. The specific implementation solution is as follows: when the skin smoothness is calculated, an image to be detected including a face area is obtained first, and then the image to be detected and a smoothness analysis mask image corresponding to the image to be detected are inputted into a deep learning model to obtain a plurality of feature vectors for indicating the skin smoothness of the face. Because the smoothness analysis mask image does not include preset factors including at least one of five sense organs, reflection and hair, the influence of the preset factors on the skin smoothness is avoided, so that the accuracy for the skin smoothness of the face is ensured to a certain extent.

Abstract: A network device obtains to-be-detected mirrored traffic between a client and a server, obtains a first session information sequence based on the to-be-detected mirrored traffic, where the first session information sequence includes a plurality of pieces of session information, the plurality of pieces of session information have a one-to-one correspondence with a plurality of login sessions, and an arrangement order of the plurality of pieces of session information in the first session information sequence is consistent with a chronological order of the plurality of login sessions, using the first session information sequence as a first Markov chain, and obtains a state chain probability value of the first Markov chain, and determines, based on the state chain probability value of the first Markov chain and a first benchmark probability value, whether the plurality of login sessions are a brute force attack.

Abstract: A cable connector assembly (100, 100?) includes a first cable end (1, 1?), a second cable end (2, 2?), and a cable (3, 3?) connecting between the first cable end and the second cable end. The first cable end has a first insulative body (11, 11?) and a first connecting tongue (12, 12?) extending beyond the first insulative body. The second cable end has a second insulative body (211, 211?), a third insulative body (212, 212?) extending from the second insulative body, a second connecting tongue (23, 23?) extending beyond the second insulative body, and a third connecting tongue (24, 24?) extending beyond the third insulative body. The cable connector assembly has a cover (25, 25?) covering the second cable end along a first direction. The cover is moveable with respect to the second cable end in a second, perpendicular direction to cover one of the two connecting tongues.

Abstract: A cable connector assembly (100, 100?) includes a first cable end (1, 1?), a second cable end (2, 2?), and a cable (3, 3?) connecting between the first cable end and the second cable end. The first cable end has a first insulative body (11, 11?) and a first connecting tongue (12, 12?) extending beyond the first insulative body. The second cable end has a second insulative body (211, 211?), a third insulative body (212, 212?) extending from the second insulative body, a second connecting tongue (23, 23?) extending beyond the second insulative body, and a third connecting tongue (24, 24?) extending beyond the third insulative body. The cable connector assembly has a cover (25, 25?) covering the second cable end along a first direction. The cover is moveable with respect to the second cable end in a second, perpendicular direction to cover one of the two connecting tongues.